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Ireland, Dublin, the bell tower in Trinity College with a stormy sky backdrop

Ireland, Dublin, the bell tower in Trinity College with a stormy sky backdrop

UDK5432217

Dark stars and nebulae in Sagittarius and Scorpio - Star clouds and dust in Sagittarius - Scorpius - Star field bordering the Pipe nebula. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Star clouds and dust in Sagittarius and Scorpius, at the edge of the Pipe nebula

Dark stars and nebulae in Sagittarius and Scorpio - Star clouds and dust in Sagittarius - Scorpius - Star field bordering the Pipe nebula. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Star clouds and dust in Sagittarius and Scorpius, at the edge of the Pipe nebula

PIX4621387

Dark Nebula Barnard 142 in the Eagle - B142 Dark Nebula B142 and B143 are a pair of dark nebulae in Aquila in the rich summer Milky Way star fields near Tarazed (Gamma Aquilae), the brightest star in this photo at magnitude 2.7. Dark nebula are clouds of non - luminous matter in space that obscure the stars behind them. 500 mm f/4 Nikkor ED lens working at f/4 composite to two 7 minute exposures no filter hypered (8HRS) Kodak Ektapress Multi - speed PJM 9:11, 9:23 pm September 26, 1997 Chatsworth, N

Dark Nebula Barnard 142 in the Eagle - B142 Dark Nebula B142 and B143 are a pair of dark nebulae in Aquila in the rich summer Milky Way star fields near Tarazed (Gamma Aquilae), the brightest star in this photo at magnitude 2.7. Dark nebula are clouds of non - luminous matter in space that obscure the stars behind them. 500 mm f/4 Nikkor ED lens working at f/4 composite to two 7 minute exposures no filter hypered (8HRS) Kodak Ektapress Multi - speed PJM 9:11, 9:23 pm September 26, 1997 Chatsworth, N

Jerry Lodriguss

PIX4621185

Neptune - Illustration - Neptune's Great Dark Spot - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This is how Neptune's Great Dark Spot and rings may have looked in 1989 from a position just beneath Neptune's ring plane. The outermost Adams ring is near the top of the frame, and beneath that is the much broader and diffuse Lassell ring. Further in toward Neptune and abutting the Lassell ring is the thin Le Verrier ring, and beyond that is the diffuse Galle ring. The Great Dark Spot is believed to be a storm similar to, but only half the size of, Jupiter's Great Red Spot. While Jupiter's Great Red Spot has been raging for at least 400 years, subsequent observations of Neptune's Great Dark Spot in 1994 by the Hubble Space Telescope revealed that this storm has since disappeared. The Great Dark Spot was a very dynamic weather system, generating massive, white clouds similar to high - altitude cirrus clouds on Ear

Neptune - Illustration - Neptune's Great Dark Spot - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This is how Neptune's Great Dark Spot and rings may have looked in 1989 from a position just beneath Neptune's ring plane. The outermost Adams ring is near the top of the frame, and beneath that is the much broader and diffuse Lassell ring. Further in toward Neptune and abutting the Lassell ring is the thin Le Verrier ring, and beyond that is the diffuse Galle ring. The Great Dark Spot is believed to be a storm similar to, but only half the size of, Jupiter's Great Red Spot. While Jupiter's Great Red Spot has been raging for at least 400 years, subsequent observations of Neptune's Great Dark Spot in 1994 by the Hubble Space Telescope revealed that this storm has since disappeared. The Great Dark Spot was a very dynamic weather system, generating massive, white clouds similar to high - altitude cirrus clouds on Ear

Walter B Myers

PIX4624042

Dark Nebula LDN 673 in Aquarius - LDN 673 dark nebula in Aquila - This telescopic close - up looks towards the region at a fragmented Aquila dark cloud complex identified as LDN 673, stretching across a field of view slightly wider than the full moon. In the scene, visible indications of energetic outflows associated with young stars include the small red tinted nebulosity RNO 109 at top left and Herbig - Haro object HH32 above and right of center. The dark clouds in Aquila are estimated to be some 600 light - years away

Dark Nebula LDN 673 in Aquarius - LDN 673 dark nebula in Aquila - This telescopic close - up looks towards the region at a fragmented Aquila dark cloud complex identified as LDN 673, stretching across a field of view slightly wider than the full moon. In the scene, visible indications of energetic outflows associated with young stars include the small red tinted nebulosity RNO 109 at top left and Herbig - Haro object HH32 above and right of center. The dark clouds in Aquila are estimated to be some 600 light - years away

Adam Block

PIX4621654

Constellation Ophiuchus - Constellation of Ophiuchus - The constellation Ophiuchus separates the constellation of the Snake into two parts. The constellation of Ophiuchus is located between Serpens Caput and Serpens Cauda, two parts of the constellation of Serpens. The southern part of Ophiuchus contains one of the darkest and most visually distinctive dark clouds of the Miky Way. It is popularly known as the Dark Horse nebula - - the body of the horse runs north - south and its legs point towards the bright star Antares. The hind quarters of the horse make up the (smoker's) Pipe nebula, with the stem pointing to Antares. The dust of forelegs reaches a long way in the direction of Antares, where it is illuminated by stars associated with Rho Ophiuchi to make a distinctive reflection nebula. The dusty clouds of the Dark Horse nebula hide the northern part of the Milky Way's central bulge. The southern part (in Sagittarius) is relatively unobscured. Without this dust the extent of the Mi

Constellation Ophiuchus - Constellation of Ophiuchus - The constellation Ophiuchus separates the constellation of the Snake into two parts. The constellation of Ophiuchus is located between Serpens Caput and Serpens Cauda, two parts of the constellation of Serpens. The southern part of Ophiuchus contains one of the darkest and most visually distinctive dark clouds of the Miky Way. It is popularly known as the Dark Horse nebula - - the body of the horse runs north - south and its legs point towards the bright star Antares. The hind quarters of the horse make up the (smoker's) Pipe nebula, with the stem pointing to Antares. The dust of forelegs reaches a long way in the direction of Antares, where it is illuminated by stars associated with Rho Ophiuchi to make a distinctive reflection nebula. The dusty clouds of the Dark Horse nebula hide the northern part of the Milky Way's central bulge. The southern part (in Sagittarius) is relatively unobscured. Without this dust the extent of the Mi

PIX4592342

Neptune - Voyager 2 - Image of the Great Dark Spot on Neptune obtained by the Voyager 2 probe on August 23, 1989. The Great Dark Spot is the size of the Earth and winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Date: 08/23/89 Range: 2.8 million km. (1.7 million miles) Smallest Resolvable Feature: 50 km or 31 miles This Voyager 2 image shows the last face on view of the Great Dark Spot that Voyager 2 will take with the narrow angle camera. It was made 45 hours before the closest approach to Neptune. the image shows feathery white clouds that overlie the boundary of the dark and light blue regions. the pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic, small - scale patterns in the white clouds, possibly waves, are short - lived and do not persist from one Neptunian rotation to the next. This color composite was made from the clear and green

Neptune - Voyager 2 - Image of the Great Dark Spot on Neptune obtained by the Voyager 2 probe on August 23, 1989. The Great Dark Spot is the size of the Earth and winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Date: 08/23/89 Range: 2.8 million km. (1.7 million miles) Smallest Resolvable Feature: 50 km or 31 miles This Voyager 2 image shows the last face on view of the Great Dark Spot that Voyager 2 will take with the narrow angle camera. It was made 45 hours before the closest approach to Neptune. the image shows feathery white clouds that overlie the boundary of the dark and light blue regions. the pinwheel (spiral) structure of both the dark boundary and the white cirrus suggest a storm system rotating counterclockwise. Periodic, small - scale patterns in the white clouds, possibly waves, are short - lived and do not persist from one Neptunian rotation to the next. This color composite was made from the clear and green

PIX4622808

Constellation Ophiuchus - Constellation of Ophiuchus - The constellation Ophiuchus separates the constellation of the Snake into two parts. The constellation of Ophiuchus is located between Serpens Caput and Serpens Cauda, two parts of the constellation of Serpens. The southern part of Ophiuchus contains one of the darkest and most visually distinctive dark clouds of the Miky Way. It is popularly known as the Dark Horse nebula - - the body of the horse runs north - south and its legs point towards the bright star Antares. The hind quarters of the horse make up the (smoker's) Pipe nebula, with the stem pointing to Antares. The dust of forelegs reaches a long way in the direction of Antares, where it is illuminated by stars associated with Rho Ophiuchi to make a distinctive reflection nebula. The dusty clouds of the Dark Horse nebula hide the northern part of the Milky Way's central bulge. The southern part (in Sagittarius) is relatively unobscured. Without this dust the extent of the Mi

Constellation Ophiuchus - Constellation of Ophiuchus - The constellation Ophiuchus separates the constellation of the Snake into two parts. The constellation of Ophiuchus is located between Serpens Caput and Serpens Cauda, two parts of the constellation of Serpens. The southern part of Ophiuchus contains one of the darkest and most visually distinctive dark clouds of the Miky Way. It is popularly known as the Dark Horse nebula - - the body of the horse runs north - south and its legs point towards the bright star Antares. The hind quarters of the horse make up the (smoker's) Pipe nebula, with the stem pointing to Antares. The dust of forelegs reaches a long way in the direction of Antares, where it is illuminated by stars associated with Rho Ophiuchi to make a distinctive reflection nebula. The dusty clouds of the Dark Horse nebula hide the northern part of the Milky Way's central bulge. The southern part (in Sagittarius) is relatively unobscured. Without this dust the extent of the Mi

PIX4592348

Neptune - Voyager 2 - Image of Neptune obtained by the Voyager 2 probe on August 14, 1989 at 14.8 million km from the planet. Neptune has an equatorial diameter of about 49,000 kilometres. Its blue color is due to the abundance of methane in its atmosphere. On this photo, on the right, the Great Dark Spot, which is the size of the Earth where winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. This contrast enhanced color photograph of Neptune was produced from images taken through the orange, green, and violet filters of the narrow angle camera. As Voyager 2 approaches Neptune, rapidly increasing image resolution is revealing striking new details in the planet's atmosphere, and this picture shows features as small as a few hundred kilometers in extent. Bright, wispy “” cirrus - type”” clouds are seen overlying the Great Dark Spot (GDS) at its southern (lower) margin and over its northwest (upper left) boundary. This is the fi

Neptune - Voyager 2 - Image of Neptune obtained by the Voyager 2 probe on August 14, 1989 at 14.8 million km from the planet. Neptune has an equatorial diameter of about 49,000 kilometres. Its blue color is due to the abundance of methane in its atmosphere. On this photo, on the right, the Great Dark Spot, which is the size of the Earth where winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. This contrast enhanced color photograph of Neptune was produced from images taken through the orange, green, and violet filters of the narrow angle camera. As Voyager 2 approaches Neptune, rapidly increasing image resolution is revealing striking new details in the planet's atmosphere, and this picture shows features as small as a few hundred kilometers in extent. Bright, wispy “” cirrus - type”” clouds are seen overlying the Great Dark Spot (GDS) at its southern (lower) margin and over its northwest (upper left) boundary. This is the fi

PIX4622776

Constellations of Serpens and Ophiuchus - Constellations of Serpens and Ophiuchus - The constellation of Ophiuchus separates the constellation of the Serpent into two parts. Serpens, the Serpent, is an ancient constellation, unique in being formed from two separate sections, Serpens Caput (the head of the snake) to the west and Serpens Cauda (the tail) to the east. Between them lies the constellation of Ophiuchus, the serpent holder, who is usually identified with the ancient Greek physician Asclepius, around whose shoulders or staff a snake is draped. The stars in both parts of Serpens are mostly quite faint and a snake - like shape is hard to pick out in either section. Serpens Cauda is probably easier to locate since it occupies the dusty part of the Milky Way adjoining the brighter star clouds of Scutum and Aquila

Constellations of Serpens and Ophiuchus - Constellations of Serpens and Ophiuchus - The constellation of Ophiuchus separates the constellation of the Serpent into two parts. Serpens, the Serpent, is an ancient constellation, unique in being formed from two separate sections, Serpens Caput (the head of the snake) to the west and Serpens Cauda (the tail) to the east. Between them lies the constellation of Ophiuchus, the serpent holder, who is usually identified with the ancient Greek physician Asclepius, around whose shoulders or staff a snake is draped. The stars in both parts of Serpens are mostly quite faint and a snake - like shape is hard to pick out in either section. Serpens Cauda is probably easier to locate since it occupies the dusty part of the Milky Way adjoining the brighter star clouds of Scutum and Aquila

PIX4594003

Constellations of Serpens and Ophiuchus - Constellations of Serpens and Ophiuchus - The constellation of Ophiuchus separates the constellation of the Serpent into two parts. Serpens, the Serpent, is an ancient constellation, unique in being formed from two separate sections, Serpens Caput (the head of the snake) to the west and Serpens Cauda (the tail) to the east. Between them lies the constellation of Ophiuchus, the serpent holder, who is usually identified with the ancient Greek physician Asclepius, around whose shoulders or staff a snake is draped. The stars in both parts of Serpens are mostly quite faint and a snake - like shape is hard to pick out in either section. Serpens Cauda is probably easier to locate since it occupies the dusty part of the Milky Way adjoining the brighter star clouds of Scutum and Aquila

Constellations of Serpens and Ophiuchus - Constellations of Serpens and Ophiuchus - The constellation of Ophiuchus separates the constellation of the Serpent into two parts. Serpens, the Serpent, is an ancient constellation, unique in being formed from two separate sections, Serpens Caput (the head of the snake) to the west and Serpens Cauda (the tail) to the east. Between them lies the constellation of Ophiuchus, the serpent holder, who is usually identified with the ancient Greek physician Asclepius, around whose shoulders or staff a snake is draped. The stars in both parts of Serpens are mostly quite faint and a snake - like shape is hard to pick out in either section. Serpens Cauda is probably easier to locate since it occupies the dusty part of the Milky Way adjoining the brighter star clouds of Scutum and Aquila

PIX4594009

Neptune - Voyager 2 - Neptune has an equatorial diameter of about 49,000 kilometres. Its blue color is due to the abundance of methane in its atmosphere. On this photo, on the left, the Great Dark Spot, which is the size of the Earth where winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Image of Neptune obtained by the Voyager 2 probe on August 16, 1989. During August 16 and 17, 1989, the Voyager 2 narrow - angle camera was used to photograph Neptune almost continuously, recording approximately two and one - half rotations of the planet. These images represent the most complete set of full disk Neptune images that the spacecraft will acquire. This picture from the sequence shows two of the four cloud features which have been tracked by the Voyager cameras during the past two months. The large dark oval near the western limb (the left edge) is at a latitude of 22 degrees south and circuits Neptune every 18.3 hours. The brig

Neptune - Voyager 2 - Neptune has an equatorial diameter of about 49,000 kilometres. Its blue color is due to the abundance of methane in its atmosphere. On this photo, on the left, the Great Dark Spot, which is the size of the Earth where winds are blowing at 300 m/s. This spot has now disappeared but other dark spots have been detected since then. Image of Neptune obtained by the Voyager 2 probe on August 16, 1989. During August 16 and 17, 1989, the Voyager 2 narrow - angle camera was used to photograph Neptune almost continuously, recording approximately two and one - half rotations of the planet. These images represent the most complete set of full disk Neptune images that the spacecraft will acquire. This picture from the sequence shows two of the four cloud features which have been tracked by the Voyager cameras during the past two months. The large dark oval near the western limb (the left edge) is at a latitude of 22 degrees south and circuits Neptune every 18.3 hours. The brig

PIX4622787

Nebulae B175 and VDB 152 in Cephee - Dark nebula B175 and reflection nebula VDB 152 - Located about 1400 years ago - light in the constellation Cephee, a large dust trail leads to a bluish nebula. This is the dark nebula, Barnard 175, which faces the nebula by reflexion VDB 152 (Ced 201). The reflection nebula vdB 152 is really very faint. It lies about 1400 light - years away, along the northern Milky Way in the constellation Cepheus. Near the edge of a large molecular cloud, pockets of cosmic dust in the region block light from background stars or scatter light from the embedded bright star (top) giving parts of the nebula a characteristic blue color. Ultraviolet light from the star is also thought to cause a dim reddish luminescence in the nebular dust. Although stars do form in molecular clouds, this star seems to have only accidentally wandered into the area, as its measured velocity through interstellar space is very different from the cloud's velocity

Nebulae B175 and VDB 152 in Cephee - Dark nebula B175 and reflection nebula VDB 152 - Located about 1400 years ago - light in the constellation Cephee, a large dust trail leads to a bluish nebula. This is the dark nebula, Barnard 175, which faces the nebula by reflexion VDB 152 (Ced 201). The reflection nebula vdB 152 is really very faint. It lies about 1400 light - years away, along the northern Milky Way in the constellation Cepheus. Near the edge of a large molecular cloud, pockets of cosmic dust in the region block light from background stars or scatter light from the embedded bright star (top) giving parts of the nebula a characteristic blue color. Ultraviolet light from the star is also thought to cause a dim reddish luminescence in the nebular dust. Although stars do form in molecular clouds, this star seems to have only accidentally wandered into the area, as its measured velocity through interstellar space is very different from the cloud's velocity

Tom Davis

PIX4621253

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

PIX4619831

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

Nebula NGC 6559 in Sagittarius - NGC 6559 and IC 1274 - 75 in Sagittarius - Located in Sagittarius, this nebula is located at a distance of about 5000 years - light from Earth. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. This dusty region is probably associated with the brighter and better - known Lagoon and Trifid Nebulae which are nearby in the sky and part of the same molecular cloud. The soft red glow of fluorescent hydrogen is evidence that there are young hot stars associated with the dusty clouds. These bright stars also illuminate the tiny solid particles, producing blue reflection nebulae bordering some of the emission regions. The dust is also evident in silhouette, both as sinuous dark lanes winding through the luminous gas and as the dark patches obscuring the ancient, yellow stars that populate the central parts of the Milky Way

PIX4619800

Modern architecture; inclined plane; dark clouds reflected in the glass; New Opera House; Operaen; Oslo; Norway; Scandinavia; Northern Europe; Europe

Modern architecture; inclined plane; dark clouds reflected in the glass; New Opera House; Operaen; Oslo; Norway; Scandinavia; Northern Europe; Europe

Stefan Auth

IMB4897108

Rainbow; dark clouds; rocky coastline on Great Head; Acadia National Park; Maine; New England; USA; North America

Rainbow; dark clouds; rocky coastline on Great Head; Acadia National Park; Maine; New England; USA; North America

Stefan Auth

IMB4959766

Nebuleuse Barnard 86 & open cluster NGC 6520 - Dark nebula Barnard 86 and open cluster NGC 6520 - NGC 6520, in the center of the image, is a cluster of young stars, aged a few million years. To its right is the dark nebula, Barnard 86, a cloud of molecular gas and dust, very cold, in which stars form. In the background, the billions of years old stars of Sagittarius. NGC 6520 is a young star cluster formed only millions of years ago. Besides, the dark nebula Barnard 86, a molecular cloud, very cold, from which the stars of NGC 6520 surely formed. All around them, oldest stars, which are billions of years old, form the star clouds of Sagittarius in the southern Milky Way and are in orbit around the inner part of the Galaxy. They are cool and yellow

Nebuleuse Barnard 86 & open cluster NGC 6520 - Dark nebula Barnard 86 and open cluster NGC 6520 - NGC 6520, in the center of the image, is a cluster of young stars, aged a few million years. To its right is the dark nebula, Barnard 86, a cloud of molecular gas and dust, very cold, in which stars form. In the background, the billions of years old stars of Sagittarius. NGC 6520 is a young star cluster formed only millions of years ago. Besides, the dark nebula Barnard 86, a molecular cloud, very cold, from which the stars of NGC 6520 surely formed. All around them, oldest stars, which are billions of years old, form the star clouds of Sagittarius in the southern Milky Way and are in orbit around the inner part of the Galaxy. They are cool and yellow

PIX4621322

Dark stars and nebulae in Sagittarius and Ophiuchus - Dark Nebulae in Sagittarius and Scorpius - Dark nebulae on the edge of the Pipe nebula. This complex of dust clouds that block the light of the stars is located between the Sagittarius and the Scorpio, near the center of our lactee road. Also visible, the nebulae emitted from the Lagoon, Trifide, and Omega. Image obtained with Canon 20Da, 50 mm f/1.4, 6 x 5 min ISO 1600 poses. This amazing complex of dark nebulae and dust in Sagittarius and Ophiuchus lies near the central bulge of our own galaxy, the Milky Way. Dark nebulae are non - luminous clouds of obscuring matter and dust which block the light from stars behind them. Many of the dark nebulae seen here are listed in E.E. Barnard's catalog of dark nebulae and are given a “” B” designation, such as B72, the Snake Nebula. Almost the entire complex of dark nebulae seen on the right hand side of the image make up the “Dark Horse and Rider””. The Pipe Nebula, Lynds Dark Nebula 1773,

Dark stars and nebulae in Sagittarius and Ophiuchus - Dark Nebulae in Sagittarius and Scorpius - Dark nebulae on the edge of the Pipe nebula. This complex of dust clouds that block the light of the stars is located between the Sagittarius and the Scorpio, near the center of our lactee road. Also visible, the nebulae emitted from the Lagoon, Trifide, and Omega. Image obtained with Canon 20Da, 50 mm f/1.4, 6 x 5 min ISO 1600 poses. This amazing complex of dark nebulae and dust in Sagittarius and Ophiuchus lies near the central bulge of our own galaxy, the Milky Way. Dark nebulae are non - luminous clouds of obscuring matter and dust which block the light from stars behind them. Many of the dark nebulae seen here are listed in E.E. Barnard's catalog of dark nebulae and are given a “” B” designation, such as B72, the Snake Nebula. Almost the entire complex of dark nebulae seen on the right hand side of the image make up the “Dark Horse and Rider””. The Pipe Nebula, Lynds Dark Nebula 1773,

Jerry Lodriguss

PIX4621393

Cluster of stars South Serpent - The Serpens South star cluster - Cluster of fifty very young stars (35 of which are still only proto - stars, stars in formation) observed by the Spitzer space telescope on 27 October 2006 in the constellation of the Serpent. Located only 848 years from Earth, this cluster of stars is completely masked by interstellar dust and is only revealed in infrared light. Red filaments in the background are organic molecules, PAH (aromatic polycyclic hydrocarbons composed of carbon atoms and hydrogen. In this image, Nasa's Spitzer Space Telescope spots the Serpens South star cluster, which consists of a relatively dense group of 50 young stars - - 35 of which are protostars, or stellar infants, that are just beginning to form. Stellar members of Serpens South star cluster can be seen as the green, yellow, and orange tinted specks sitting atop the black dust lane running down the center of the image. Like raindrops, stars form when thick patches of cosmic clouds c

Cluster of stars South Serpent - The Serpens South star cluster - Cluster of fifty very young stars (35 of which are still only proto - stars, stars in formation) observed by the Spitzer space telescope on 27 October 2006 in the constellation of the Serpent. Located only 848 years from Earth, this cluster of stars is completely masked by interstellar dust and is only revealed in infrared light. Red filaments in the background are organic molecules, PAH (aromatic polycyclic hydrocarbons composed of carbon atoms and hydrogen. In this image, Nasa's Spitzer Space Telescope spots the Serpens South star cluster, which consists of a relatively dense group of 50 young stars - - 35 of which are protostars, or stellar infants, that are just beginning to form. Stellar members of Serpens South star cluster can be seen as the green, yellow, and orange tinted specks sitting atop the black dust lane running down the center of the image. Like raindrops, stars form when thick patches of cosmic clouds c

PIX4569048

Dark Stars and Nebulae in Sagittarius - The Star Clouds of Sagittarius - Star Field towards the center of our galaxy. The bright star towards the center of the image is Gamma of Sagittarius. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Orbiting round the centre of our Galaxy are found huge numbers of stars which are mostly faint, cool and often billions of years old. They are as ancient as the Galaxy itself. These stars are seen with the unaided eye as the hazy star clouds of the southern Milky Way, especially rich in Sagittarius. Our line of sight in this direction is strongly affected by dust, which reveals itself by both dimming the starlight passing through it and by selectively removing the blue light, changing the apparent colour to a deeper yellow. Though the colour change is only seen in photographs such as this, the dustiness of the Milky Way is obvious to the unaided eye. Near the centre of the picture is a region known as Baade's Window after the astro

Dark Stars and Nebulae in Sagittarius - The Star Clouds of Sagittarius - Star Field towards the center of our galaxy. The bright star towards the center of the image is Gamma of Sagittarius. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Orbiting round the centre of our Galaxy are found huge numbers of stars which are mostly faint, cool and often billions of years old. They are as ancient as the Galaxy itself. These stars are seen with the unaided eye as the hazy star clouds of the southern Milky Way, especially rich in Sagittarius. Our line of sight in this direction is strongly affected by dust, which reveals itself by both dimming the starlight passing through it and by selectively removing the blue light, changing the apparent colour to a deeper yellow. Though the colour change is only seen in photographs such as this, the dustiness of the Milky Way is obvious to the unaided eye. Near the centre of the picture is a region known as Baade's Window after the astro

PIX4621371

Antares star and the nebula Rho Ophiuchi - Antares and Rho Ophiuchi cloud - This coloree nebula represents the visible part of a very large molecule cloud, the cloud of Ophiuchus. This star-forming region is about 520 years old - light. The brightest star at the bottom left is the star Antares, from the Scorpio. The triple star Rho Ophiuchus is located in the middle of the blue cloud at the top of the picture. On the right, surrounded by a nebula, the star Sigma Scorpii. The globular clusters M4 (at the bottom of the image) and NGC 6144 (near Antares) are also visible on this image obtained with the UK Schmidt telescope of 1.2m. This photograph shows a portion of a great swath of obscuring gas and dust in the constellations Ophiuchus and Scorpius, and illustrates what is probably the most colourful region in the entire sky. The almost garish colours are due to the brilliance and contrasting colours of the stars, by whose reflected light we see the dust clouds. Dominating the picture is

Antares star and the nebula Rho Ophiuchi - Antares and Rho Ophiuchi cloud - This coloree nebula represents the visible part of a very large molecule cloud, the cloud of Ophiuchus. This star-forming region is about 520 years old - light. The brightest star at the bottom left is the star Antares, from the Scorpio. The triple star Rho Ophiuchus is located in the middle of the blue cloud at the top of the picture. On the right, surrounded by a nebula, the star Sigma Scorpii. The globular clusters M4 (at the bottom of the image) and NGC 6144 (near Antares) are also visible on this image obtained with the UK Schmidt telescope of 1.2m. This photograph shows a portion of a great swath of obscuring gas and dust in the constellations Ophiuchus and Scorpius, and illustrates what is probably the most colourful region in the entire sky. The almost garish colours are due to the brilliance and contrasting colours of the stars, by whose reflected light we see the dust clouds. Dominating the picture is

PIX4621421

Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the supergiant star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. Supergiant star Gamma Cygni lies at the center of the Northern Cross, famous asterism in the constellation Cygnus the Swan. Known by the proper name Sadr, the bright star also lies at the center of this gorgeous skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans over 4 degrees (eight Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Left of Gamma Cyg and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318'

Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the supergiant star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. Supergiant star Gamma Cygni lies at the center of the Northern Cross, famous asterism in the constellation Cygnus the Swan. Known by the proper name Sadr, the bright star also lies at the center of this gorgeous skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans over 4 degrees (eight Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Left of Gamma Cyg and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318'

D. De Martin

PIX4622236

1960s: View of clouds in a dark sky.

1960s: View of clouds in a dark sky.

AVE8905619

1960s: View of clouds in a dark sky.

1960s: View of clouds in a dark sky.

AVE8905593

1960s: View of clouds in a dark sky.

1960s: View of clouds in a dark sky.

AVE8905605

1960s: View above the fluffy dark clouds from a plane.

1960s: View above the fluffy dark clouds from a plane.

AVE8905686

Taurus Molecular Cloud - Taurus Molecular Cloud - This region is located on the border of the Taurus and Persee constellations. Covering about 20 x 30 degres, this image shows a complex of emitted nebulae, star clusters, reflexion nebulae and dark nebulae. A molecular cloud is a region of dense gas and dust composed mainly of molecular hydrogen and helium. It's a birthplace of stars. The Molecular Cloud of Taurus is located about 400 years ago - light, and is one of the closest molecular clouds to our solar system. The California Nebula (NGC 1499), an emission nebula located about 1000 years ago - is visible at the top right. The dark nebulae B7, B18 and B19 are visible near the center of the image. Les Pleiades, M45, is the open cluster at the bottom right center. The open clusters NGC 1817, NGC 1746, NGC 1647 are on the left side of the image. The Hyades, Melotte 25, is a V-shaped cluster at the bottom left. It is the closest open cluster, located at a distance of about 151 light yea

Taurus Molecular Cloud - Taurus Molecular Cloud - This region is located on the border of the Taurus and Persee constellations. Covering about 20 x 30 degres, this image shows a complex of emitted nebulae, star clusters, reflexion nebulae and dark nebulae. A molecular cloud is a region of dense gas and dust composed mainly of molecular hydrogen and helium. It's a birthplace of stars. The Molecular Cloud of Taurus is located about 400 years ago - light, and is one of the closest molecular clouds to our solar system. The California Nebula (NGC 1499), an emission nebula located about 1000 years ago - is visible at the top right. The dark nebulae B7, B18 and B19 are visible near the center of the image. Les Pleiades, M45, is the open cluster at the bottom right center. The open clusters NGC 1817, NGC 1746, NGC 1647 are on the left side of the image. The Hyades, Melotte 25, is a V-shaped cluster at the bottom left. It is the closest open cluster, located at a distance of about 151 light yea

Jerry Lodriguss

PIX4621177

Northern Dunes Lighthouse with Dark Clouds, 1991, Jerome Kleine, (b.20th. C/American), Watercolor

premium — Northern Dunes Lighthouse with Dark Clouds, 1991, Jerome Kleine, (b.20th. C/American), Watercolor

Northern Dunes Lighthouse with Dark Clouds, 1991, Jerome Kleine, (b.20th. C/American), Watercolor

Kleine, Jerome (b.1963)

SSI2219856

Sandy beach with dark clouds over the coast, Dail Mor Beach, Dalmore, Carloway, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

Sandy beach with dark clouds over the coast, Dail Mor Beach, Dalmore, Carloway, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

Stefan Auth

IMB4963330

Storm clouds seen by the shuttle Discovery - Clouds as seen from space shuttle Discovery - Cumulus cast their shadow at sunset while space shuttle Discovery flies over Poland. 5 June 1998. Cloud shadows reaching for the terminator. The cloud shadows grow long as the astronauts approach the dark side of the Earth during sunset”” over Poland. The taller building cumulus clouds cast shadows over the lower clouds. June 5, 1998.

Storm clouds seen by the shuttle Discovery - Clouds as seen from space shuttle Discovery - Cumulus cast their shadow at sunset while space shuttle Discovery flies over Poland. 5 June 1998. Cloud shadows reaching for the terminator. The cloud shadows grow long as the astronauts approach the dark side of the Earth during sunset”” over Poland. The taller building cumulus clouds cast shadows over the lower clouds. June 5, 1998.

PIX4674547

Oct. 13, 1953 - Dark Clouds are standing at pale autumn sky. The rests of the harvest are burnt on the fields and the autumn wind carries the Shaggy over the Stubble-fields.

Oct. 13, 1953 - Dark Clouds are standing at pale autumn sky. The rests of the harvest are burnt on the fields and the autumn wind carries the Shaggy over the Stubble-fields.

ZUM4889304

Lava beach and shoreline, south coast, Iceland. 2015 (photo)

premium — Lava beach and shoreline, south coast, Iceland. 2015 (photo)

Lava beach and shoreline, south coast, Iceland. 2015 (photo)

BWK8939236

Noctulescent clouds - Noctilucent clouds: July 6, 2016, Spicheren, France. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Date: July 6, 2016. Location: Spicheren, France

Noctulescent clouds - Noctilucent clouds: July 6, 2016, Spicheren, France. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Date: July 6, 2016. Location: Spicheren, France

Sebastian Voltmer

PIX4634021

Noctulescent clouds - Noctilucent clouds - Noctilucent clouds, very high altitude clouds, photographs in July 2009 in Russia. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Image taken in july 2009 in Russia

Noctulescent clouds - Noctilucent clouds - Noctilucent clouds, very high altitude clouds, photographs in July 2009 in Russia. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Image taken in july 2009 in Russia

Alex Tudorica

PIX4671636

Noctulescent clouds - Noctilucent clouds - Noctilucent clouds, very high altitude clouds, photographs in July 2009 in Russia. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Image taken in july 2009 in Russia

Noctulescent clouds - Noctilucent clouds - Noctilucent clouds, very high altitude clouds, photographs in July 2009 in Russia. These rare clouds are called noctilucent or “” night shining” as they seem to glow in the dark. They are caused by ice crystals at about 80 km altitude. These crystals reflect sunlight when the sun is well below the horizon. They are properly known as polar mesospheric clouds and are under intense study as it remains a mystery as to how they are formed. Image taken in july 2009 in Russia

Alex Tudorica

PIX4671634

Noctulescent clouds in Alaska, august 2009 (photo)

Noctulescent clouds in Alaska, august 2009 (photo)

Dennis Anderson

PIX4671632

Large and Small Magellan Clouds - Large and Small Magellanic clouds - These two irregular galaxies are close to our galaxy. Visible in the southern hemisphere, they are located approximately 160,000 (Grand Cloud, right) and 240,000 light years (Small Cloud, left). The Magellanic Clouds are the nearest galaxies to the Milky Way, about 170,000 and 240,000 light years distant respectively. They are in the far southern sky, practically invisible from northern latitudes, and their low surface brightness makes them difficult to see unless they are high in the sky. Both Magellanic Clouds are less than 25 degrees from the South Celestial Pole and are visible at some time on any clear, dark night from Siding Spring, where this picture was taken. To the dark adapted eye the Magellanic Clouds look like detached pieces of the Milky Way, but this apparent detachment is misleading because both are in orbit around it. Although the Magellanic Clouds are separate galaxies they are interacting with each

Large and Small Magellan Clouds - Large and Small Magellanic clouds - These two irregular galaxies are close to our galaxy. Visible in the southern hemisphere, they are located approximately 160,000 (Grand Cloud, right) and 240,000 light years (Small Cloud, left). The Magellanic Clouds are the nearest galaxies to the Milky Way, about 170,000 and 240,000 light years distant respectively. They are in the far southern sky, practically invisible from northern latitudes, and their low surface brightness makes them difficult to see unless they are high in the sky. Both Magellanic Clouds are less than 25 degrees from the South Celestial Pole and are visible at some time on any clear, dark night from Siding Spring, where this picture was taken. To the dark adapted eye the Magellanic Clouds look like detached pieces of the Milky Way, but this apparent detachment is misleading because both are in orbit around it. Although the Magellanic Clouds are separate galaxies they are interacting with each

PIX4613338

Earth's atmosphere and noctiluque clouds - Earth's atmosphere and noctilucent clouds - View of the Earth's atmosphere with night clouds photographs from the International Space Station on July 22, 2008. These clouds look like cirrus but are much higher, between 75 and 90 km from the Earth's surface. Polar Mesospheric Clouds (also known as noctilucent clouds) are transient, upper atmospheric phenomena observed usually in the summer months at high latitudes (greater than 50 degrees) of both the Northern and Southern Hemispheres. They are bright and cloudlike in appearance while in deep twilight. They are illuminated by sunlight when the lower layers of the atmosphere are in the darkness of the Earth's shadow. This image was acquired at an altitude of just over 200 miles in the pre - dawn hours of July 22, 2008 as the International Space Station was passing over western Mongolia in central Asia. The dark horizon of the Earth appears below with some layers of the lower atmosphere already i

Earth's atmosphere and noctiluque clouds - Earth's atmosphere and noctilucent clouds - View of the Earth's atmosphere with night clouds photographs from the International Space Station on July 22, 2008. These clouds look like cirrus but are much higher, between 75 and 90 km from the Earth's surface. Polar Mesospheric Clouds (also known as noctilucent clouds) are transient, upper atmospheric phenomena observed usually in the summer months at high latitudes (greater than 50 degrees) of both the Northern and Southern Hemispheres. They are bright and cloudlike in appearance while in deep twilight. They are illuminated by sunlight when the lower layers of the atmosphere are in the darkness of the Earth's shadow. This image was acquired at an altitude of just over 200 miles in the pre - dawn hours of July 22, 2008 as the International Space Station was passing over western Mongolia in central Asia. The dark horizon of the Earth appears below with some layers of the lower atmosphere already i

PIX4675175

Lactee and Jupiter - Milky way and Jupiter - The Lactee Way accompanied by Jupiter, the bright planet on the left, seen from Cherry Springs State Park in the United States. The center of our own galaxy, the Milky Way, sets in the southwest as night begins at the Cherry Springs State Park, one of the darkest observing locations in the eastern United States. The Milky Way is a vast collection of more than 200 billion stars, planets, nebulae, clusters, dust and gas. Our own Sun and solar system are also part of the Milky Way galaxy. Seen as a luminous band of light and star clouds that stretch across the night sky, the brighter star clouds of the Milky Way are frequently mistaken for real Earth-bound clouds by observers who are unfamiliar with their appearance. Sometimes interrupted by dark nebulae and rifts, these star clouds are actually innumerable unresolved faint stars. The central bulge of the Milky Way, the brightest and most spectacular portion, is visible here in the Sagittarius

Lactee and Jupiter - Milky way and Jupiter - The Lactee Way accompanied by Jupiter, the bright planet on the left, seen from Cherry Springs State Park in the United States. The center of our own galaxy, the Milky Way, sets in the southwest as night begins at the Cherry Springs State Park, one of the darkest observing locations in the eastern United States. The Milky Way is a vast collection of more than 200 billion stars, planets, nebulae, clusters, dust and gas. Our own Sun and solar system are also part of the Milky Way galaxy. Seen as a luminous band of light and star clouds that stretch across the night sky, the brighter star clouds of the Milky Way are frequently mistaken for real Earth-bound clouds by observers who are unfamiliar with their appearance. Sometimes interrupted by dark nebulae and rifts, these star clouds are actually innumerable unresolved faint stars. The central bulge of the Milky Way, the brightest and most spectacular portion, is visible here in the Sagittarius

Jerry Lodriguss

PIX4637237

Apollo 13: Return to Earth - Apollo 13 command module near splashdown - The Apollo 13 control module is landing. April 17, 1970. The Apollo 13 spacecraft heads toward a splashdown in the South Pacific Ocean. The Apollo 13 Command Module splashed down in the South Pacific at 12:07:44 p.m., April 17, 1970. Note the capsule and its parachutes just visible against a gap in the dark clouds

Apollo 13: Return to Earth - Apollo 13 command module near splashdown - The Apollo 13 control module is landing. April 17, 1970. The Apollo 13 spacecraft heads toward a splashdown in the South Pacific Ocean. The Apollo 13 Command Module splashed down in the South Pacific at 12:07:44 p.m., April 17, 1970. Note the capsule and its parachutes just visible against a gap in the dark clouds

PIX4596959

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away.The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the sta

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away.The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the sta

Jerry Lodriguss

PIX4590324

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away. The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the st

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away. The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the st

Jerry Lodriguss

PIX4590327

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon Nebula, M8, NGC 6523 - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 6500 years - light, it extends over a diameter of 60 AL. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The irregular distribution of light in this beautiful part of the sky is due mainly to clouds of dust that dim the light of vast clouds of stars that make Sagittarius one of the brightest parts of the Milky Way. The Lagoon nebula is an illuminated part of such a dark ('molecule') cloud and it reveals the dust as dark lanes and globules silhouetted against the luminous gas. Within the nebula is the scattered young star cluster NGC 6530, recently formed from this material, though the centre of star - forming activity has now shifted westwards from the cluster to the brightest part of the nebula, around the tiny Hourglass Nebula

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon Nebula, M8, NGC 6523 - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 6500 years - light, it extends over a diameter of 60 AL. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. The irregular distribution of light in this beautiful part of the sky is due mainly to clouds of dust that dim the light of vast clouds of stars that make Sagittarius one of the brightest parts of the Milky Way. The Lagoon nebula is an illuminated part of such a dark ('molecule') cloud and it reveals the dust as dark lanes and globules silhouetted against the luminous gas. Within the nebula is the scattered young star cluster NGC 6530, recently formed from this material, though the centre of star - forming activity has now shifted westwards from the cluster to the brightest part of the nebula, around the tiny Hourglass Nebula

PIX4619624

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. Image made with an amateur instrument, a 130 mm bezel. The Pinwheel Galaxy, M33, is a very large, beautiful, face - on spiral galaxy. It is more difficult to observe at magnification than its size and magnitude would indicate under skies that are not dark because of it's fairly low surface brightness. Still, under very dark and transparent skies, M33 can be seen with the unaided eye by keen - eyed observers. Several emission nebulae inside of M33 can be seen as pink patches in this photo. The largest and most prominent emission nebula is NGC 604 which is almost 1,500 light - years in diameter. Such clouds are star factories where gas condenses under gravitational attraction and stars are born. It is one of the largest clouds of ionized hydrogen g

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. Image made with an amateur instrument, a 130 mm bezel. The Pinwheel Galaxy, M33, is a very large, beautiful, face - on spiral galaxy. It is more difficult to observe at magnification than its size and magnitude would indicate under skies that are not dark because of it's fairly low surface brightness. Still, under very dark and transparent skies, M33 can be seen with the unaided eye by keen - eyed observers. Several emission nebulae inside of M33 can be seen as pink patches in this photo. The largest and most prominent emission nebula is NGC 604 which is almost 1,500 light - years in diameter. Such clouds are star factories where gas condenses under gravitational attraction and stars are born. It is one of the largest clouds of ionized hydrogen g

Jerry Lodriguss

PIX4609277

Nebula IC 2948 in Centaur - Bok's cells - A group of Bok globules in IC 2948 - View of a detail of nebula IC 2948 in the center Centaur on Bok's cells. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. The dark spots in the picture are not photographic defects but an unusual type of interstellar cloud known as a Bok globule. Bok globules, named after astronomer Bart Bok who studied them extensively, are small dark clouds made of gas and dust that are typically condensing to form a star or stars. These Bok globules are located at a distance of about 6000 light years near IC 2944 cluster in the emission nebula IC 2948

Nebula IC 2948 in Centaur - Bok's cells - A group of Bok globules in IC 2948 - View of a detail of nebula IC 2948 in the center Centaur on Bok's cells. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. The dark spots in the picture are not photographic defects but an unusual type of interstellar cloud known as a Bok globule. Bok globules, named after astronomer Bart Bok who studied them extensively, are small dark clouds made of gas and dust that are typically condensing to form a star or stars. These Bok globules are located at a distance of about 6000 light years near IC 2944 cluster in the emission nebula IC 2948

PIX4622532

Venus seen by the Venus Express probe - Venus seen by Venus Express spacecraft - Faux-colored image obtained on July 23, 2007 by the Venus Express probe at a distance of 35,000 km from the planet. Venus presents here his southern hemisphere, from Ecuador, on the right, to the pole, on the left. This is a false - colour image taken with the Venus Monitoring Camera on board ESA's Venus Express. It shows the full view of the southern hemisphere from equator (right) to the pole. The south pole is surrounded by a dark oval feature. Moving to the right, away from the pole and towards the equator, we see streaky clouds, a bright mid - latitude band and mottled clouds in the convective sub - solar region. This image was taken in the ultraviolet at 365 nanometres on 23 July 2007 as Venus Express was 35,000 km from the surface of the planet

Venus seen by the Venus Express probe - Venus seen by Venus Express spacecraft - Faux-colored image obtained on July 23, 2007 by the Venus Express probe at a distance of 35,000 km from the planet. Venus presents here his southern hemisphere, from Ecuador, on the right, to the pole, on the left. This is a false - colour image taken with the Venus Monitoring Camera on board ESA's Venus Express. It shows the full view of the southern hemisphere from equator (right) to the pole. The south pole is surrounded by a dark oval feature. Moving to the right, away from the pole and towards the equator, we see streaky clouds, a bright mid - latitude band and mottled clouds in the convective sub - solar region. This image was taken in the ultraviolet at 365 nanometres on 23 July 2007 as Venus Express was 35,000 km from the surface of the planet

PIX4635394

Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained from the 3.9m telescope of Siding Spring, Australia. M83 is thought to be very like our own Galaxy, the Milky Way, but seen from above one of its poles and at a distance of about 15 million light years. Composed of billions of stars and huge clouds of dust and gas, this object is one of the finest examples of a spiral galaxy and shows a concentration of older, yellow stars in its central nucleus with younger, blue stars and patchy red clouds of glowing gas and dark dust lanes in the trailing spiral arms. The massive blue stars occasionally explode as supernovae; at least eight have been seen in Messier 83 in the last 70 years

Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained from the 3.9m telescope of Siding Spring, Australia. M83 is thought to be very like our own Galaxy, the Milky Way, but seen from above one of its poles and at a distance of about 15 million light years. Composed of billions of stars and huge clouds of dust and gas, this object is one of the finest examples of a spiral galaxy and shows a concentration of older, yellow stars in its central nucleus with younger, blue stars and patchy red clouds of glowing gas and dark dust lanes in the trailing spiral arms. The massive blue stars occasionally explode as supernovae; at least eight have been seen in Messier 83 in the last 70 years

PIX4612481

Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained from the 3.9m telescope of Siding Spring, Australia. M83 is thought to be very like our own Galaxy, the Milky Way, but seen from above one of its poles and at a distance of about 15 million light years. Composed of billions of stars and huge clouds of dust and gas, this object is one of the finest examples of a spiral galaxy and shows a concentration of older, yellow stars in its central nucleus with younger, blue stars and patchy red clouds of glowing gas and dark dust lanes in the trailing spiral arms. The massive blue stars occasionally explode as supernovae; at least eight have been seen in Messier 83 in the last 70 years

Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained from the 3.9m telescope of Siding Spring, Australia. M83 is thought to be very like our own Galaxy, the Milky Way, but seen from above one of its poles and at a distance of about 15 million light years. Composed of billions of stars and huge clouds of dust and gas, this object is one of the finest examples of a spiral galaxy and shows a concentration of older, yellow stars in its central nucleus with younger, blue stars and patchy red clouds of glowing gas and dark dust lanes in the trailing spiral arms. The massive blue stars occasionally explode as supernovae; at least eight have been seen in Messier 83 in the last 70 years

PIX4612513

Heart of the Nebula of the Lagoon (M8) in Sagittarius seen by HST - This NASA Hubble Space Telescope (HST) image reveals a pair of one - half light - year long interstellar “” twisters”” - - eerie funnels and twisted - rope structures (upper left) - - in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 years - - away in the direction of the constellation Sagittarius. The central hot O type star, Herschel 36 (upper left in photo), is the primary source of the ionizing radiation for the brightest region in the nebula, called the Hourglass. Other hot stars, also present in the nebula, are ionizing the extended optical nebulosity. The ionizing radiation induces photo - evaporation of the surfaces of the clouds (seen as a blue “” mist”” at the right of the image), and drives away violent stellar winds tearing into the cool clouds.Analogous to the spectacular phenomena of Earth tornadoes, the large difference in temperature between the hot surface and cold interior of the clouds,

Heart of the Nebula of the Lagoon (M8) in Sagittarius seen by HST - This NASA Hubble Space Telescope (HST) image reveals a pair of one - half light - year long interstellar “” twisters”” - - eerie funnels and twisted - rope structures (upper left) - - in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 years - - away in the direction of the constellation Sagittarius. The central hot O type star, Herschel 36 (upper left in photo), is the primary source of the ionizing radiation for the brightest region in the nebula, called the Hourglass. Other hot stars, also present in the nebula, are ionizing the extended optical nebulosity. The ionizing radiation induces photo - evaporation of the surfaces of the clouds (seen as a blue “” mist”” at the right of the image), and drives away violent stellar winds tearing into the cool clouds.Analogous to the spectacular phenomena of Earth tornadoes, the large difference in temperature between the hot surface and cold interior of the clouds,

PIX4619680

Dark Nebula in Scorpio - A dark cloud in Scorpius - Unnamed nebula in Scorpius. Bright rimmed globules and their more evolved cousin the cometary globule represent fascinating dynamic structures formed by the interplay of cold molecular clouds and hot ionizing stars. Typically the head of the globule faces a hot O - type star. Intense radiation from the star boils away lower density gas from the head. The evaporated rim of gas becomes ionized by the stars ultraviolet flux forming a bright glowing rim we associate with many of these globules including CG4. Intense stellar winds from the ionizing star evaporate gas and dust away from the head forming the “” tail”” and completing the cometary shape. The blood cells are known to be the birthplace of low mass stars. Stars form within the blood cells by the mechanism known as “” radiation driven implosion”. This process occurs when ultraviolet flux from a hot star compresses surviving clumps of cold molecular gas eventually causing collapse

Dark Nebula in Scorpio - A dark cloud in Scorpius - Unnamed nebula in Scorpius. Bright rimmed globules and their more evolved cousin the cometary globule represent fascinating dynamic structures formed by the interplay of cold molecular clouds and hot ionizing stars. Typically the head of the globule faces a hot O - type star. Intense radiation from the star boils away lower density gas from the head. The evaporated rim of gas becomes ionized by the stars ultraviolet flux forming a bright glowing rim we associate with many of these globules including CG4. Intense stellar winds from the ionizing star evaporate gas and dust away from the head forming the “” tail”” and completing the cometary shape. The blood cells are known to be the birthplace of low mass stars. Stars form within the blood cells by the mechanism known as “” radiation driven implosion”. This process occurs when ultraviolet flux from a hot star compresses surviving clumps of cold molecular gas eventually causing collapse

R. Gendler

PIX4621601

Earth's atmosphere and setting sun - Earth's atmosphere and setting sun - Earth's atmosphere seen at sunset from the International Space Station (ISS) on May 25, 2010. This spectacular image of sunset on the Indian Ocean was taken by astronauts aboard the International Space Station (ISS). The image presents an edge - on, or limb view, of the Earth's atmosphere as seen from orbit. The Earth's curvature is visible along the horizon line, or limb, that extends across the image from center left to lower right. Above the darkened surface of the Earth, a brilliant sequence of colors roughly denotes several layers of the atmosphere. Deep oranges and yellows appear in the troposphere, which extends from the Earth's surface to 6 - 20 km high. This layer contains over 80 percent of the mass of the atmosphere and almost all of the water vapor, clouds, and precipitation. Several dark cloud layers are visible within this layer. Variations in the colors are due mainly to varying concentrations of e

Earth's atmosphere and setting sun - Earth's atmosphere and setting sun - Earth's atmosphere seen at sunset from the International Space Station (ISS) on May 25, 2010. This spectacular image of sunset on the Indian Ocean was taken by astronauts aboard the International Space Station (ISS). The image presents an edge - on, or limb view, of the Earth's atmosphere as seen from orbit. The Earth's curvature is visible along the horizon line, or limb, that extends across the image from center left to lower right. Above the darkened surface of the Earth, a brilliant sequence of colors roughly denotes several layers of the atmosphere. Deep oranges and yellows appear in the troposphere, which extends from the Earth's surface to 6 - 20 km high. This layer contains over 80 percent of the mass of the atmosphere and almost all of the water vapor, clouds, and precipitation. Several dark cloud layers are visible within this layer. Variations in the colors are due mainly to varying concentrations of e

PIX4675392

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action, as seen here. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action, as seen here. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust

Adam Block

PIX4611108

Molecular cloud B 68 in Ophiuchus seen in infrared - False - colour composite based on a visible (here rendered as blue), a near - infrared (green) and an infrared (red) image. Since the light from stars behind the cloud is only visible at the longest (infrared) wavelengths, they appear red. At a distance of only 410 light - years, Barnard 68 is one of the nearest dark clouds. Its size is about 12,500 AU (= 2 million km; 1 Astronomical Unit [AU] = 150 million km), or just about the same as the so - called “” Oort Cloud””” of long - period comets that surrounds the solar system. The temperature of Barnard 68 is 16 Kelvin (- 257* C) The total mass of the cloud is about twice that of the Sun

Molecular cloud B 68 in Ophiuchus seen in infrared - False - colour composite based on a visible (here rendered as blue), a near - infrared (green) and an infrared (red) image. Since the light from stars behind the cloud is only visible at the longest (infrared) wavelengths, they appear red. At a distance of only 410 light - years, Barnard 68 is one of the nearest dark clouds. Its size is about 12,500 AU (= 2 million km; 1 Astronomical Unit [AU] = 150 million km), or just about the same as the so - called “” Oort Cloud””” of long - period comets that surrounds the solar system. The temperature of Barnard 68 is 16 Kelvin (- 257* C) The total mass of the cloud is about twice that of the Sun

PIX4621267

The Lagoon nebula (M8) without stars - The Lagoon nebula (M8) with stars removed - In this image, the stars were removed by computer processing. Located in Sagittarius, at a distance of 5800 years - light, M8 is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. This image was processed to remove the stars so the incredible complex of dark and light nebulosity could more easily be seen. M8 is an amazing stellar nursery. Hot young stars that formed out of the hydrogen gas in the nebula cause it to glow in the light of ionized hydrogen at the hydrogen - alpha wavelength of 656nm. The Lagoon Nebula gets its name from the d

The Lagoon nebula (M8) without stars - The Lagoon nebula (M8) with stars removed - In this image, the stars were removed by computer processing. Located in Sagittarius, at a distance of 5800 years - light, M8 is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. This image was processed to remove the stars so the incredible complex of dark and light nebulosity could more easily be seen. M8 is an amazing stellar nursery. Hot young stars that formed out of the hydrogen gas in the nebula cause it to glow in the light of ionized hydrogen at the hydrogen - alpha wavelength of 656nm. The Lagoon Nebula gets its name from the d

Jerry Lodriguss

PIX4619678

Hourglass Nebula in M8 - The Hourglass Nebula in M8, NGC 6523 - View of the Hourglass Nebula in the heart of the Lagoon Nebula (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 light years, it is a region of star formation whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. Image made with the 1.5m Danish telescope of La Silla in Chile. At the heart of the Lagoon Nebula in Sagittarius lies the diminutive Hourglass Nebula. Its gases are excited primarily by two massive O-type supergiants designated Herschel 36 and 9 Sagittarii. These two stars lie to the west of NGC 6530 and are separated from it by a dark lane which divides the nebula like a black lagoon, giving it its name. Twisted funnel shaped clouds are visible close to the illuminating stars, especially Herschel 36. The twists are due to shear forces between the hot excited gases at the surface and the cold interior of the clouds. These stars are probably less than 10,000 years o

Hourglass Nebula in M8 - The Hourglass Nebula in M8, NGC 6523 - View of the Hourglass Nebula in the heart of the Lagoon Nebula (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 light years, it is a region of star formation whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. Image made with the 1.5m Danish telescope of La Silla in Chile. At the heart of the Lagoon Nebula in Sagittarius lies the diminutive Hourglass Nebula. Its gases are excited primarily by two massive O-type supergiants designated Herschel 36 and 9 Sagittarii. These two stars lie to the west of NGC 6530 and are separated from it by a dark lane which divides the nebula like a black lagoon, giving it its name. Twisted funnel shaped clouds are visible close to the illuminating stars, especially Herschel 36. The twists are due to shear forces between the hot excited gases at the surface and the cold interior of the clouds. These stars are probably less than 10,000 years o

PIX4619660

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust. The yellow nuclei of the two galaxies are also still visible in the colour picture as separate entities

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust. The yellow nuclei of the two galaxies are also still visible in the colour picture as separate entities

PIX4611076

Nebula NGC 3576 in Carene - Star formation region NGC 3576 in Carina - NGC 3576 is located about 7000 years - light from Earth in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. The stars that excite this unusual nebula, NGC 3576, are not visible on this photograph. They are hidden in the dusty cloud at the 'base' (south) of the huge loops of nebulosity. This is material that has been blown out by radiation pressure and stellar winds from the concealed stars. Silhouetted against the tenuous loops are dark clouds of dust with bright rims which indicate the direction of the stars which excite the nebula. This large complex of gas and dust is at about the same distance as the much brighter Eta Carinae nebula, about 7000 light years away

Nebula NGC 3576 in Carene - Star formation region NGC 3576 in Carina - NGC 3576 is located about 7000 years - light from Earth in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. The stars that excite this unusual nebula, NGC 3576, are not visible on this photograph. They are hidden in the dusty cloud at the 'base' (south) of the huge loops of nebulosity. This is material that has been blown out by radiation pressure and stellar winds from the concealed stars. Silhouetted against the tenuous loops are dark clouds of dust with bright rims which indicate the direction of the stars which excite the nebula. This large complex of gas and dust is at about the same distance as the much brighter Eta Carinae nebula, about 7000 light years away

PIX4619136

Nebula of the Lagoon (M8) in Sagittarius - M8, The Lagoon Nebula - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several giant O stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two supergiant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 giant B stars, 3 to 4 times more than the Orion nebula. M8 is an amazing stellar nursery. Hot young stars that formed out of the hydrogen gas in the nebula cause it to glow in the light of ionized hydrogen at the hydrogen - alpha wavelength of 656nm. The Lagoon Nebula gets its name from the distinctive dark lane that runs through the heart of the nebula, just to the west of open cluster NGC 6530. Bok globules, small dark knots which are condensing protostella

Nebula of the Lagoon (M8) in Sagittarius - M8, The Lagoon Nebula - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several giant O stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two supergiant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 giant B stars, 3 to 4 times more than the Orion nebula. M8 is an amazing stellar nursery. Hot young stars that formed out of the hydrogen gas in the nebula cause it to glow in the light of ionized hydrogen at the hydrogen - alpha wavelength of 656nm. The Lagoon Nebula gets its name from the distinctive dark lane that runs through the heart of the nebula, just to the west of open cluster NGC 6530. Bok globules, small dark knots which are condensing protostella

Jerry Lodriguss

PIX4619667

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action, as seen here. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust. The yellow nuclei of the two galaxies are also still visible in the colour picture as separate entities

Interacting galaxies NGC 4038 - 4039 in the Raven - NGC 4038 - 39, the interacting galaxies of the Antennae - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light from Earth. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. NGC 4038 and 4039 are the well - known pair of interacting galaxies that show two broadly curved tails of stars, the 'antenna', extending a considerable distance from the action, as seen here. The colour picture reveals the burst of star formation triggered by the encounter, the large numbers of pink emission nebulae in the inter - galaxy region and the location of the numerous dark, brownish - yellow clouds of dust. The yellow nuclei of the two galaxies are also still visible in the colour picture as separate entities

PIX4611114

Paranal Observatory - Chile - Paranal Observatory - Chile - The lactee road above the Paranal Observatory in Chile. 360 degree Panorama of ESO - Paranal Observatory platform. The four 8m (UT) and four 1.8 m (AT) diameter telescopes of the VLT are all observing under the Milky Way arch during this very dark Southern hemisphere spring night. The large (LMC) and small (SMC) Magellanic clouds are visible to the left of the picture while another galaxy, Andromeda Galaxy (M31) is also visible just to the right of UT4. Bright Jupiter is high in the sky. The picture also shows two 'astronomical' lights, the zodiacal light crossing the Milky Way center vertically (just at the left of the middle of the image, above AT3) and the Gegenschein, usually very difficult to observe, below Jupiter on the right hand side of the image

Paranal Observatory - Chile - Paranal Observatory - Chile - The lactee road above the Paranal Observatory in Chile. 360 degree Panorama of ESO - Paranal Observatory platform. The four 8m (UT) and four 1.8 m (AT) diameter telescopes of the VLT are all observing under the Milky Way arch during this very dark Southern hemisphere spring night. The large (LMC) and small (SMC) Magellanic clouds are visible to the left of the picture while another galaxy, Andromeda Galaxy (M31) is also visible just to the right of UT4. Bright Jupiter is high in the sky. The picture also shows two 'astronomical' lights, the zodiacal light crossing the Milky Way center vertically (just at the left of the middle of the image, above AT3) and the Gegenschein, usually very difficult to observe, below Jupiter on the right hand side of the image

Stephane Guisard

PIX4657246

Galaxy NGC 891 in Andromede - Edge - on spiral galaxy NGC 891 in Andromeda - Spiral galaxy seen by the slice located at a distance of 10 million years - light. This image was obtained with the Isaac Newton 2.5m telescope of La Palma. If we could view the Milky Way from a distance of about 30 million light years it would look something like NGC 891. But galaxies that look like this are quite rare because the chance alignment of the thin disk of a spiral galaxy with our line of sight is unusual. A few degrees either side of its orientation and NGC 891 would be just another highly inclined spiral galaxy. From this unusual vantage point we can see in NGC 891 the surprising narrowness of the obscuring dust lane, a dark, slightly irregular band across the galaxy. We also see that it is yellowish, confirming that it is dust, which absorbs blue light, as in the Milky Way. Also similar to the Milky Way is the prominent central 'bulge' corresponding to the rich star clouds in Sagittarius. Howeve

Galaxy NGC 891 in Andromede - Edge - on spiral galaxy NGC 891 in Andromeda - Spiral galaxy seen by the slice located at a distance of 10 million years - light. This image was obtained with the Isaac Newton 2.5m telescope of La Palma. If we could view the Milky Way from a distance of about 30 million light years it would look something like NGC 891. But galaxies that look like this are quite rare because the chance alignment of the thin disk of a spiral galaxy with our line of sight is unusual. A few degrees either side of its orientation and NGC 891 would be just another highly inclined spiral galaxy. From this unusual vantage point we can see in NGC 891 the surprising narrowness of the obscuring dust lane, a dark, slightly irregular band across the galaxy. We also see that it is yellowish, confirming that it is dust, which absorbs blue light, as in the Milky Way. Also similar to the Milky Way is the prominent central 'bulge' corresponding to the rich star clouds in Sagittarius. Howeve

PIX4609474

Galaxy NGC 891 in Andromede - Edge - on spiral galaxy NGC 891 in Andromeda - Spiral galaxy seen by the slice located at a distance of 10 million years - light.. This image obtained with the 2.5m Isaac Newton telescope of La Palma. If we could view the Milky Way from a distance of about 30 million light years it would look something like NGC 891. But galaxies that look like this are quite rare because the chance alignment of the thin disk of a spiral galaxy with our line of sight is unusual. A few degrees either side of its orientation and NGC 891 would be just another highly inclined spiral galaxy. From this unusual vantage point we can see in NGC 891 the surprising narrowness of the obscuring dust lane, a dark, slightly irregular band across the galaxy. We also see that it is yellowish, confirming that it is dust, which absorbs blue light, as in the Milky Way. Also similar to the Milky Way is the prominent central 'bulge' corresponding to the rich star clouds in Sagittarius. However,

Galaxy NGC 891 in Andromede - Edge - on spiral galaxy NGC 891 in Andromeda - Spiral galaxy seen by the slice located at a distance of 10 million years - light.. This image obtained with the 2.5m Isaac Newton telescope of La Palma. If we could view the Milky Way from a distance of about 30 million light years it would look something like NGC 891. But galaxies that look like this are quite rare because the chance alignment of the thin disk of a spiral galaxy with our line of sight is unusual. A few degrees either side of its orientation and NGC 891 would be just another highly inclined spiral galaxy. From this unusual vantage point we can see in NGC 891 the surprising narrowness of the obscuring dust lane, a dark, slightly irregular band across the galaxy. We also see that it is yellowish, confirming that it is dust, which absorbs blue light, as in the Milky Way. Also similar to the Milky Way is the prominent central 'bulge' corresponding to the rich star clouds in Sagittarius. However,

PIX4609481

Aurora sur Jupiter - Aurora on Jupiter - Artist's view of an aurora boreale on Jupiter. This is how auroras on Jupiter's north pole might look from a distance of about a quarter million miles. On the Sunlit side can be seen churning clouds of ammonia ice, ammonium hydrosulfide, and water ice. The “” dark”” side reveals a dazzling aurora and brilliant flashes of lightning hundreds of times brighter than lightning on Earth. Unlike Earth's north and south pole auroras which are powered by charged particles from the Sun, auroras on Jupiter are driven by particles emitted by Jupiter's volcanic moon Io. Io in fact leaves a distinct auroral “” footprint”” on Jupiter's poles, seen here as a whitish dot with a trailing, comet - like tail at the seven 0'clock position. Jupiter's moons Europa and Ganymede also have corresponding, albeit fainter footprints on the far side of the larger auroral oval

Aurora sur Jupiter - Aurora on Jupiter - Artist's view of an aurora boreale on Jupiter. This is how auroras on Jupiter's north pole might look from a distance of about a quarter million miles. On the Sunlit side can be seen churning clouds of ammonia ice, ammonium hydrosulfide, and water ice. The “” dark”” side reveals a dazzling aurora and brilliant flashes of lightning hundreds of times brighter than lightning on Earth. Unlike Earth's north and south pole auroras which are powered by charged particles from the Sun, auroras on Jupiter are driven by particles emitted by Jupiter's volcanic moon Io. Io in fact leaves a distinct auroral “” footprint”” on Jupiter's poles, seen here as a whitish dot with a trailing, comet - like tail at the seven 0'clock position. Jupiter's moons Europa and Ganymede also have corresponding, albeit fainter footprints on the far side of the larger auroral oval

Walter B Myers

PIX4574984

Southern Crown Nebula - The Corona Australis nebula (NGC 6726 - 27 - 29) - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. Image made with Siding Spring's 3.9m telescope. This spectacular reflection nebula is the result of a few bright stars caught up in a large, dusty cloud. If that is all there was here, this region would be considered to be like the Pleiades, an accidental association of dust and stars. However, there are features here that show the dark cloud to be an active star forming nebula, though most of the action is hidden from view. The peculiar yellowish curved streak near the two bright reflection nebulae surround an intriguing object best seen in infrared light, R CRA, a young star still accreting interstellar material on to its surface. It seems to be the source of two compact but distinctly red patches which are Herbig - Haro objects, often the first visible signs of star forma

Southern Crown Nebula - The Corona Australis nebula (NGC 6726 - 27 - 29) - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. Image made with Siding Spring's 3.9m telescope. This spectacular reflection nebula is the result of a few bright stars caught up in a large, dusty cloud. If that is all there was here, this region would be considered to be like the Pleiades, an accidental association of dust and stars. However, there are features here that show the dark cloud to be an active star forming nebula, though most of the action is hidden from view. The peculiar yellowish curved streak near the two bright reflection nebulae surround an intriguing object best seen in infrared light, R CRA, a young star still accreting interstellar material on to its surface. It seems to be the source of two compact but distinctly red patches which are Herbig - Haro objects, often the first visible signs of star forma

PIX4620228

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

PIX4653092

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

PIX4653098

Banks of the Bahamas seen from space - Great Bahamas Bank: Image obtained on 5 February 2014 by the Landsat-8 satellite. Underwater structures of the Great Bahamas Bank are pictured in this image from the Landsat-8 satellite on 5 February 2014. Sitting north of Cuba, the bank is made of limestone - mainly from the skeletal fragments of marine organisms - that has been accumulating for over 100 million years. Currents sculpted these underwater sediments into the wavy pattern we see along the bottom of the image, just a few meters deep. We can clearly see where the shallow waters drop off into the deep, dark water of an area known as the Tongue of the Ocean. With depths of up to about 4000 m, this trench surrounded by islands, reefs and shoals has an opening to the Atlantic Ocean at its northern end (not pictured). Over the deep Tongue we can see a few sparse clouds

Banks of the Bahamas seen from space - Great Bahamas Bank: Image obtained on 5 February 2014 by the Landsat-8 satellite. Underwater structures of the Great Bahamas Bank are pictured in this image from the Landsat-8 satellite on 5 February 2014. Sitting north of Cuba, the bank is made of limestone - mainly from the skeletal fragments of marine organisms - that has been accumulating for over 100 million years. Currents sculpted these underwater sediments into the wavy pattern we see along the bottom of the image, just a few meters deep. We can clearly see where the shallow waters drop off into the deep, dark water of an area known as the Tongue of the Ocean. With depths of up to about 4000 m, this trench surrounded by islands, reefs and shoals has an opening to the Atlantic Ocean at its northern end (not pictured). Over the deep Tongue we can see a few sparse clouds

PIX4634059

Nebula of the Eagle (IC 4703) in the Snake - detail - Star - birth in the Eagle nebula. - The Pillars of Creation “” is undoubtedly the most famous image realized by the Hubble space telescope, obtained in 1995. 20 years later, the same telescope rephotographed this region with more finesse. These cold gas columns are home to star embryos. The NASA/ESA Hubble Space Telescope has revisited one of its most iconic and popular images: the Eagle Nebula's Pillars of Creation. This image shows the pillars as seen in visible light, capturing the multi - coloured glow of gas clouds, wispy tendrils of dark cosmic dust, and the rust - colored elephants trunks of the nebula's famous pillars. The dust and gas in the pillars is seared by the intense radiation from young stars and eroded by strong winds from massive nearby stars. With these new images comes better contrast and a clearer view for astronomers to study how the structure of the pillars is changing over time.

Nebula of the Eagle (IC 4703) in the Snake - detail - Star - birth in the Eagle nebula. - The Pillars of Creation “” is undoubtedly the most famous image realized by the Hubble space telescope, obtained in 1995. 20 years later, the same telescope rephotographed this region with more finesse. These cold gas columns are home to star embryos. The NASA/ESA Hubble Space Telescope has revisited one of its most iconic and popular images: the Eagle Nebula's Pillars of Creation. This image shows the pillars as seen in visible light, capturing the multi - coloured glow of gas clouds, wispy tendrils of dark cosmic dust, and the rust - colored elephants trunks of the nebula's famous pillars. The dust and gas in the pillars is seared by the intense radiation from young stars and eroded by strong winds from massive nearby stars. With these new images comes better contrast and a clearer view for astronomers to study how the structure of the pillars is changing over time.

PIX4620070

Nebula Trifide (M20) in Sagittarius view in visible and infrared - This image composite compares the well - known visible - light picture of the glowing Trifid Nebula (left panel) with infrared views from Nasa's Spitzer Space Telescope (remaining three panels). The Trifid Nebula is a giant star - forming cloud of gas and dust located 5,400 light - years away in the constellation Sagittarius. The false - color Spitzer images reveal a different side of the Trifid Nebula. Where dark lanes of dust are visible trisecting the nebula in the visible - light picture, bright regions of star - forming activity are seen in the Spitzer pictures. All together, Spitzer uncovered 30 massive embryonic stars and 120 smaller newborn stars throughout the Trifid Nebula, in both its dark lanes and luminous clouds. These stars are visible in all the Spitzer images, mainly as yellow or red spots. Embryonic stars are developing stars about to burst into existence. Ten of the 30 massive embryos discovered by Sp

Nebula Trifide (M20) in Sagittarius view in visible and infrared - This image composite compares the well - known visible - light picture of the glowing Trifid Nebula (left panel) with infrared views from Nasa's Spitzer Space Telescope (remaining three panels). The Trifid Nebula is a giant star - forming cloud of gas and dust located 5,400 light - years away in the constellation Sagittarius. The false - color Spitzer images reveal a different side of the Trifid Nebula. Where dark lanes of dust are visible trisecting the nebula in the visible - light picture, bright regions of star - forming activity are seen in the Spitzer pictures. All together, Spitzer uncovered 30 massive embryonic stars and 120 smaller newborn stars throughout the Trifid Nebula, in both its dark lanes and luminous clouds. These stars are visible in all the Spitzer images, mainly as yellow or red spots. Embryonic stars are developing stars about to burst into existence. Ten of the 30 massive embryos discovered by Sp

PIX4619569

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

PIX4619434

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained with a telescope of 61 cm. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the o

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained with a telescope of 61 cm. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which give the o

Adam Block

PIX4619510

Detail of the nebula NGC 3603 in the Carene - Star life cycle in NGC 3603 - In the center of the picture is a cluster of massive young stars formed from the gas surrounding them. Two pillars of gas and dust visible on the right at the top and bottom will one day form other stars, as probably the dark cloud at the top right of the image called Bok's globule. Above the left of the star cluster, an old blue supergiant star, Sher 25, arrives at the end of life. The nebula NGC 3603 is located approximately 20,000 light years from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope. This image made by the Hubble space telescope nicely illustrates the entire stellar life cycle of stars, starting with the Bok globules (dark clouds at the upper right) and giant gaseous pillars, followed by circumstellar disks and progressing to evolved massive stars in the young starburst cluster (center). The blue supergiant star Sher 25 with its ring and bipolar outflow

Detail of the nebula NGC 3603 in the Carene - Star life cycle in NGC 3603 - In the center of the picture is a cluster of massive young stars formed from the gas surrounding them. Two pillars of gas and dust visible on the right at the top and bottom will one day form other stars, as probably the dark cloud at the top right of the image called Bok's globule. Above the left of the star cluster, an old blue supergiant star, Sher 25, arrives at the end of life. The nebula NGC 3603 is located approximately 20,000 light years from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope. This image made by the Hubble space telescope nicely illustrates the entire stellar life cycle of stars, starting with the Bok globules (dark clouds at the upper right) and giant gaseous pillars, followed by circumstellar disks and progressing to evolved massive stars in the young starburst cluster (center). The blue supergiant star Sher 25 with its ring and bipolar outflow

PIX4619146

Southern Crown Nebula - The CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clouds'), blotting out the background stars. Fainter features can be seen here. Shiny NGC 6726 - 27 near middle of image contains both a visual binary and a variable star. Othe

Southern Crown Nebula - The CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clouds'), blotting out the background stars. Fainter features can be seen here. Shiny NGC 6726 - 27 near middle of image contains both a visual binary and a variable star. Othe

PIX4620295

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20 or NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. Trifid nebula is located in Sagittarius constellation between 5000 and 10 000 light - years away. Stars, the Sun included, were born within clouds of dusty gas such as the Trifid Nebula. Within it a number of young hot stars have already formed. The hottest cause the gas, mostly hydrogen, to emit its characteristic red light. Around the red emission nebula the gas contains many dust grains which preferentially reflect the blue component of starlight, and to the north (top) of the nebula can be seen a bright star which illuminates part of the dust to create a region of blue reflection. In some parts of the nebula there are so many dust grains that they hide the glowing gas, producing the three dark lanes which gi

PIX4619538

View of the nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 light years, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion nebula - The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star-forming region about 5800 light years from us. The nebula is illuminated by several O-type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as the “hourglass nebula”” and its gases are excited primarily by two massive O-type superg

View of the nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 light years, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion nebula - The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star-forming region about 5800 light years from us. The nebula is illuminated by several O-type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as the “hourglass nebula”” and its gases are excited primarily by two massive O-type superg

R. Gendler

PIX4619585

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon nebula (M8) in Sagittarius - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star - forming region about 5800 light years from us. The nebula is illuminated by several O - type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon nebula (M8) in Sagittarius - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star - forming region about 5800 light years from us. The nebula is illuminated by several O - type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as

R. Jay GaBany

PIX4619726

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon nebula (M8) in Sagittarius - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star - forming region about 5800 light years from us. The nebula is illuminated by several O - type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as

Nebula of the Lagoon (M8) in Sagittarius - The Lagoon nebula (M8) in Sagittarius - View of the Nebula of the Lagoon (M8/NGC 6523). Located in Sagittarius, at a distance of 5800 years - light, it is visible to the naked eye in good conditions. It is a star-forming region illuminated by several large O-type stars that belong to the open cluster NGC 6530 visible in the center of the image. The brightest part of the nebula is called the hourglass nebula whose gases are excited mainly by two massive supergeant stars Herschel 36 and 9 Sagittarii. M8 has at least 60 Giant B stars, 3 to 4 times more than the Orion Nebula. The Lagoon nebula (M8), can be visible to the unaided eye as a small bright patch above the large Sagittarius star cloud in the Milky Way. The Lagoon nebula is a star - forming region about 5800 light years from us. The nebula is illuminated by several O - type giants within the open cluster NGC 6530 near the center of the nebula. The brightest part of the nebula is known as

R. Gendler

PIX4619656

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The dust lanes in Messier 16 (NGC 6611) - Located in the Snake, this nebula is about 6000 years away from Earth. The M16 star cluster is a cluster of young stars formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image made with Siding Spring's 3.9m telescope. There are few clearer examples anywhere of the intimate relationship between dust, gas and young stars than M16. We see a young cluster of stars (NGC 6611) which formed about 2 million years ago, illuminating a cloud of hydrogen gas. The gas is also dusty, and in places the dust is dense enough to prevent starlight from reaching the gas and making it glow with its distinctive red hue. The luminous hydrogen provides a vivid background against which are seen numerous dark lanes and discrete globules of dust. Many of the dusty clouds are edged with bright rims which indicate the direction

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The dust lanes in Messier 16 (NGC 6611) - Located in the Snake, this nebula is about 6000 years away from Earth. The M16 star cluster is a cluster of young stars formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image made with Siding Spring's 3.9m telescope. There are few clearer examples anywhere of the intimate relationship between dust, gas and young stars than M16. We see a young cluster of stars (NGC 6611) which formed about 2 million years ago, illuminating a cloud of hydrogen gas. The gas is also dusty, and in places the dust is dense enough to prevent starlight from reaching the gas and making it glow with its distinctive red hue. The luminous hydrogen provides a vivid background against which are seen numerous dark lanes and discrete globules of dust. Many of the dusty clouds are edged with bright rims which indicate the direction

PIX4619969

Ocean of Hydrogen on Jupiter - Jupiter's hydrogen sea - Under the clouds of Jupiter could exist an ocean of hydrogen. The pressure here is much higher than the bottom of the Earth's oceans. Liquid hydrogen is responsible for the intense magnetic field of the planet. Miles beneath Jupiter's brown clouds of ammonia, hydrogen and helium lies mysterious realm where the weight of the atmosphere above far exceeds the pressures found in Earth's deepest oceans. It is believed that in this realm, somewhere between Jupiter's cloud tops and the jovian core, the atmosphere gives way to a planet - wide ocean of liquid hydrogen. This image suggests that there is a clear demarcation between atmosphere and the hydrogen sea - - a dark, extremely dense world where giant bolts of lightning erupt from the ever - changing electrical potential between liquid and gas. Too deep for sunlight to penetrate, the only light here is from the glow of this ubiquitous lightning. Further down toward Jupiter's core the

Ocean of Hydrogen on Jupiter - Jupiter's hydrogen sea - Under the clouds of Jupiter could exist an ocean of hydrogen. The pressure here is much higher than the bottom of the Earth's oceans. Liquid hydrogen is responsible for the intense magnetic field of the planet. Miles beneath Jupiter's brown clouds of ammonia, hydrogen and helium lies mysterious realm where the weight of the atmosphere above far exceeds the pressures found in Earth's deepest oceans. It is believed that in this realm, somewhere between Jupiter's cloud tops and the jovian core, the atmosphere gives way to a planet - wide ocean of liquid hydrogen. This image suggests that there is a clear demarcation between atmosphere and the hydrogen sea - - a dark, extremely dense world where giant bolts of lightning erupt from the ever - changing electrical potential between liquid and gas. Too deep for sunlight to penetrate, the only light here is from the glow of this ubiquitous lightning. Further down toward Jupiter's core the

Walter B Myers

PIX4575024

Southern Crown Nebula - The tail of the CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Our picture is about 4.5 degrees across and the extremely faint Corona Australis nebula meanders along the Sgr - CRA border nebula in the same E - W direction. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clou

Southern Crown Nebula - The tail of the CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Our picture is about 4.5 degrees across and the extremely faint Corona Australis nebula meanders along the Sgr - CRA border nebula in the same E - W direction. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clou

PIX4620260

The galactic center seen by Spitzer Space Telescope - The galactic center region seen by Spitzer satellite. The area photographed extends over 890 light-years and over 640 light-years high. In visible light, this area is hidden by a large amount of interstellar dust. This picture in false colors shows the old and cold stars in blue, and the red regions the hot and massive stars. Dark and bright filamentous clouds are star-forming regions. The brightest area in the center of the image is the center of our galaxy which houses a supermassive black hole. This infrared image from Nasa's Spitzer Space Telescope shows hundreds of thousands of stars crowded into the swirling core of our spiral Milky Way galaxy. In visible-light pictures, this region cannot be seen at all because dust lying between Earth and the galactic center blocks our view. In this false-color picture, old and cool stars are blue, while dust features lit up by blazing hot, massive stars are shown in a reddish hue. Both brig

The galactic center seen by Spitzer Space Telescope - The galactic center region seen by Spitzer satellite. The area photographed extends over 890 light-years and over 640 light-years high. In visible light, this area is hidden by a large amount of interstellar dust. This picture in false colors shows the old and cold stars in blue, and the red regions the hot and massive stars. Dark and bright filamentous clouds are star-forming regions. The brightest area in the center of the image is the center of our galaxy which houses a supermassive black hole. This infrared image from Nasa's Spitzer Space Telescope shows hundreds of thousands of stars crowded into the swirling core of our spiral Milky Way galaxy. In visible-light pictures, this region cannot be seen at all because dust lying between Earth and the galactic center blocks our view. In this false-color picture, old and cool stars are blue, while dust features lit up by blazing hot, massive stars are shown in a reddish hue. Both brig

PIX4637936

Saturn seen in infrared by Cassini spacecraft - Saturn seen in infrared by Cassini spacecraft - Composite image of Saturn in false colours obtained from infrared observations collected by the Cassini probe on 24 February 2007 at a distance of 1.58 million km from the planet. Flying over the unlit side of Saturn's rings, the Cassini spacecraft captures Saturn's glow, represented in brilliant shades of electric blue, sapphire and mint green, while the planet's shadow casts a wide net on the rings. This striking false - color mosaic was created from 25 images taken by Cassini's visual and infrared mapping spectrometer over a period of 13 hours, and captures Saturn in nighttime and daytime conditions. The visual and infrared mapping spectrometer acquires data simultaneously at 352 different wavelengths, or spectral channels. Data at wavelengths of 2.3, 3.0 and 5.1 microns were combined in the blue, green and red channels of a standard color image, respectively, to make this false - color m

Saturn seen in infrared by Cassini spacecraft - Saturn seen in infrared by Cassini spacecraft - Composite image of Saturn in false colours obtained from infrared observations collected by the Cassini probe on 24 February 2007 at a distance of 1.58 million km from the planet. Flying over the unlit side of Saturn's rings, the Cassini spacecraft captures Saturn's glow, represented in brilliant shades of electric blue, sapphire and mint green, while the planet's shadow casts a wide net on the rings. This striking false - color mosaic was created from 25 images taken by Cassini's visual and infrared mapping spectrometer over a period of 13 hours, and captures Saturn in nighttime and daytime conditions. The visual and infrared mapping spectrometer acquires data simultaneously at 352 different wavelengths, or spectral channels. Data at wavelengths of 2.3, 3.0 and 5.1 microns were combined in the blue, green and red channels of a standard color image, respectively, to make this false - color m

PIX4624969

Constellation Cassiopee - The constellation of Cassiopeia - The constellation of Cassiopeia, the Queen, is seen in this wide - angle shot spanning a field of about 16 x 24 degrees. This bright section of the Milky Way is strewn with thousands of individual stars, star clouds, dark nebulae, red emission nebulae, and glittering star clusters. As we look at Cassiopeia, we are looking out into one of the outer arms of our own Milky Way galaxy, and away from the galaxy's center in Sagittarius. The Double Cluster in Perseus (NGC 884 and NGC 869) and the Double Nebulae (IC 1805 and LBN 667) are at upper right. NGC 281, another emission nebula, is near Schedar (Alpha Cassiopeiae). IC 59 and IC 63 are two small faint nebulae near Gamma Cassiopeia, in the center of the constellation. Another very large complex of red emission nebulae, Ced 214 and NGC 7822 lie near the center of the bottom of the frame, and open cluster NGC 7789 is to the left of Caph. Open cluster M52 and NGC 7635, the Bubble Ne

Constellation Cassiopee - The constellation of Cassiopeia - The constellation of Cassiopeia, the Queen, is seen in this wide - angle shot spanning a field of about 16 x 24 degrees. This bright section of the Milky Way is strewn with thousands of individual stars, star clouds, dark nebulae, red emission nebulae, and glittering star clusters. As we look at Cassiopeia, we are looking out into one of the outer arms of our own Milky Way galaxy, and away from the galaxy's center in Sagittarius. The Double Cluster in Perseus (NGC 884 and NGC 869) and the Double Nebulae (IC 1805 and LBN 667) are at upper right. NGC 281, another emission nebula, is near Schedar (Alpha Cassiopeiae). IC 59 and IC 63 are two small faint nebulae near Gamma Cassiopeia, in the center of the constellation. Another very large complex of red emission nebulae, Ced 214 and NGC 7822 lie near the center of the bottom of the frame, and open cluster NGC 7789 is to the left of Caph. Open cluster M52 and NGC 7635, the Bubble Ne

Jerry Lodriguss

PIX4589634

Nebulae IC 2948 and 2944 in Centaur - A large southern emission nebula, IC 2948 - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaur. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. IC2944 is a large HII region (star forming cloud) in the southern constellation of Centaurus. The bright blue star in the upper right is Lambda Centauri, one of the brightest stars in the southern sky.The cluster of hot blue stars to the right of center are illuminating the gases of IC2944 and causing it to glow in the red and magenta light of excited hydrogen. The compact black objects adjacent to the bright blue stars are called Thackeray's Globules named for the astronomer A.D. Thackeray who described these in 1950. Thackeray Globules are similar to Bok Globules which

Nebulae IC 2948 and 2944 in Centaur - A large southern emission nebula, IC 2948 - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaur. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. IC2944 is a large HII region (star forming cloud) in the southern constellation of Centaurus. The bright blue star in the upper right is Lambda Centauri, one of the brightest stars in the southern sky.The cluster of hot blue stars to the right of center are illuminating the gases of IC2944 and causing it to glow in the red and magenta light of excited hydrogen. The compact black objects adjacent to the bright blue stars are called Thackeray's Globules named for the astronomer A.D. Thackeray who described these in 1950. Thackeray Globules are similar to Bok Globules which

R. Gendler

PIX4622567

Centaurus A Elliptical Galaxy (NGC 5128) in the Centaur - Galaxy Centaurus A - The NGC 5128 galaxy is about 11 million years away - light from Earth. This image from the Hubble Space Telescope (HST) shows the star flames that occur in the dark band of the galaxy. This giant galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. Centaurus A, also known as NGC 5128, is well known for its dramatic dusty lanes of dark material. Hubble's observations, using its most advanced instrument, the Wide Field Camera 3, are the most detailed ever made of this galaxy. They have been combined here in a multi - wavelength image that reveals never - before - seen detail in the dusty portion of the galaxy. As well as features in the visible spectrum, this composite shows ultraviolet light from young stars, and near - infrared light, which lets us glimpse some of the detail otherwise obscured by the dust. The dark dust lane that cr

Centaurus A Elliptical Galaxy (NGC 5128) in the Centaur - Galaxy Centaurus A - The NGC 5128 galaxy is about 11 million years away - light from Earth. This image from the Hubble Space Telescope (HST) shows the star flames that occur in the dark band of the galaxy. This giant galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. Centaurus A, also known as NGC 5128, is well known for its dramatic dusty lanes of dark material. Hubble's observations, using its most advanced instrument, the Wide Field Camera 3, are the most detailed ever made of this galaxy. They have been combined here in a multi - wavelength image that reveals never - before - seen detail in the dusty portion of the galaxy. As well as features in the visible spectrum, this composite shows ultraviolet light from young stars, and near - infrared light, which lets us glimpse some of the detail otherwise obscured by the dust. The dark dust lane that cr

PIX4612191

Nebulae IC 2948 and 2944 in Centaur - A large southern emission nebula, IC 2948 - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaur. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Between the Southern Cross and the rich Carina region, on the southern border of Centaurus, is a large, almost featureless emission nebula, IC 2948, with a sprinkling of bright stars, Collinder 249. It is against this uniform, backdrop that we see a brighter region (IC 2944) which hosts small group of dark clouds of the kind known as 'Bok globules'. They are named for the Dutch - American astronomer who first drew attention to them as the possible sites of star formation. There are young stars scattered through the nebula and these stars are responsible for its existence

Nebulae IC 2948 and 2944 in Centaur - A large southern emission nebula, IC 2948 - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaur. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Between the Southern Cross and the rich Carina region, on the southern border of Centaurus, is a large, almost featureless emission nebula, IC 2948, with a sprinkling of bright stars, Collinder 249. It is against this uniform, backdrop that we see a brighter region (IC 2944) which hosts small group of dark clouds of the kind known as 'Bok globules'. They are named for the Dutch - American astronomer who first drew attention to them as the possible sites of star formation. There are young stars scattered through the nebula and these stars are responsible for its existence

PIX4622607

Saturn in false colours - Saturn in infrared - The planet Saturn seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows Saturn's rings and southern hemisphere. The composite image was made from 65 individual observations by Cassini's visual and infrared mapping spectrometer in the near - infrared portion of the light spectrum on Nov. 1, 2008. The observations were each six minutes long. In this image constructed from data collected in the near - infrared wavelengths of light, scientists designated blue to indicate sunlight reflected at a wavelength of 2 microns, green to indicate sunlight reflected at 3 microns and red to indicate thermal emission at 5 microns. Saturn's rings reflect sunlight at 2 microns, but not at 3 and 5 microns, so they appear deep blue. Saturn's high altitude haze reflects sunlight at both 2 and 3 microns, but not at 5 microns, and so it appears

Saturn in false colours - Saturn in infrared - The planet Saturn seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows Saturn's rings and southern hemisphere. The composite image was made from 65 individual observations by Cassini's visual and infrared mapping spectrometer in the near - infrared portion of the light spectrum on Nov. 1, 2008. The observations were each six minutes long. In this image constructed from data collected in the near - infrared wavelengths of light, scientists designated blue to indicate sunlight reflected at a wavelength of 2 microns, green to indicate sunlight reflected at 3 microns and red to indicate thermal emission at 5 microns. Saturn's rings reflect sunlight at 2 microns, but not at 3 and 5 microns, so they appear deep blue. Saturn's high altitude haze reflects sunlight at both 2 and 3 microns, but not at 5 microns, and so it appears

PIX4625231

Southern Aurora on the Planet Saturn - Aurora on Saturn - The Planet Saturn accompanied by a Southern Aurora, seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows the glow of auroras streaking out about 1,000 kilometers (600 miles) from the cloud tops of Saturn's south polar region. In this image constructed from data collected in the near - infrared wavelengths of light, the auroral emission is shown in green. Scientists designated blue to indicate sunlight reflected at wavelengths from 2 to 3 microns, green to indicate light from hydrogen ions at wavelengths between 3 and 4 microns and red to indicate thermal emission at 5 microns. Saturn's rings and high altitude haze only reflect sunlight at 3 microns or less, so they appear deep blue. The glow from the aurora can only be seen at the wavelengths in the green channel. The heat emission from the interior of Saturn

Southern Aurora on the Planet Saturn - Aurora on Saturn - The Planet Saturn accompanied by a Southern Aurora, seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows the glow of auroras streaking out about 1,000 kilometers (600 miles) from the cloud tops of Saturn's south polar region. In this image constructed from data collected in the near - infrared wavelengths of light, the auroral emission is shown in green. Scientists designated blue to indicate sunlight reflected at wavelengths from 2 to 3 microns, green to indicate light from hydrogen ions at wavelengths between 3 and 4 microns and red to indicate thermal emission at 5 microns. Saturn's rings and high altitude haze only reflect sunlight at 3 microns or less, so they appear deep blue. The glow from the aurora can only be seen at the wavelengths in the green channel. The heat emission from the interior of Saturn

PIX4625211

Nebula IC 2948 in Centaurus - Nebula IC 2948 and IC 2944 in Centaurus - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaurus. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Image obtained through 3 different filters that highlight oxygen (blue), hydrogen (green), and sulfur (red). Between the Southern Cross and the rich Carina region, on the southern border of Centaurus, is a large, almost featureless emission nebula, IC 2948, with a sprinkling of bright stars, Collinder 249. It is against this uniform, backdrop that we see a brighter region (IC 2944) which hosts small group of dark clouds of the kind known as 'Bok globules'. They are named for the Dutch - American astronomer who first drew attention to them as the possible sites of star formation.

Nebula IC 2948 in Centaurus - Nebula IC 2948 and IC 2944 in Centaurus - Nebula IC 2948 is a vast nebula located about 6000 years from Earth in the southern constellation of Centaurus. It is associated with the cluster of stars IC 2944 near which Bok's blood cells are visible. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Image obtained through 3 different filters that highlight oxygen (blue), hydrogen (green), and sulfur (red). Between the Southern Cross and the rich Carina region, on the southern border of Centaurus, is a large, almost featureless emission nebula, IC 2948, with a sprinkling of bright stars, Collinder 249. It is against this uniform, backdrop that we see a brighter region (IC 2944) which hosts small group of dark clouds of the kind known as 'Bok globules'. They are named for the Dutch - American astronomer who first drew attention to them as the possible sites of star formation.

Tom Davis

PIX4622599

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