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Images de 'Dark Clouds' médias trouvés, 648

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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

PIX4653098

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

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

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 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

PIX4619538

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

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

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

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

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

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

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

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

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

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. 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

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

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

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 IRAS 05437+2502 - Nebula IRAS 05437+2502 - Nebula IRAS 05437+2502 is located in the constellation Taurus. Image obtained by the Hubble Space Telescope (HST). The little - known nebula IRAS 05437+2502 billows out among the bright stars and dark dust clouds that surround it in this striking image from the Hubble Space Telescope. It is located in the constellation of Taurus (the Bull), close to the central plane of our Milky Way galaxy. It appears to be a small, rather isolated, region of star formation and one might assume that the effects of fierce ultraviolet radiation from bright young stars probably were the cause of the eye - catching shapes of the gas. However, the bright boomerang - shaped feature may tell a more dramatic tale. The interaction of a high velocity young star and the cloud of gas and dust may have created this unusually sharp - edged bright arc. Such a reckless star would have been ejected from the distant young cluster where it was born and would travel at 20

Nebula IRAS 05437+2502 - Nebula IRAS 05437+2502 - Nebula IRAS 05437+2502 is located in the constellation Taurus. Image obtained by the Hubble Space Telescope (HST). The little - known nebula IRAS 05437+2502 billows out among the bright stars and dark dust clouds that surround it in this striking image from the Hubble Space Telescope. It is located in the constellation of Taurus (the Bull), close to the central plane of our Milky Way galaxy. It appears to be a small, rather isolated, region of star formation and one might assume that the effects of fierce ultraviolet radiation from bright young stars probably were the cause of the eye - catching shapes of the gas. However, the bright boomerang - shaped feature may tell a more dramatic tale. The interaction of a high velocity young star and the cloud of gas and dust may have created this unusually sharp - edged bright arc. Such a reckless star would have been ejected from the distant young cluster where it was born and would travel at 20

PIX4621402

Phobos and Mars - Illustration - Phobos and Mars - Illustration - Artist's view of Phobos, the largest of Mars's two satellites. This is how Mars and its tiny satellite Phobos might appear from a distance of about 100 miles from Phobos' surface. Phobos is over the low martian plains of Syrtis Major. Below the plains extending down to Mars' terminator and beyond is the heavily cratered Terra Sabaea. Clouds of water - ice crystals are forming at the terminator between light and dark. Looking more like a common potato than a celestial body, Phobos is actually the larger of Mars' two satellites, with a length of about 16 miles and about 11 miles across its smallest dimension. Phobos does not have enough mass for gravity to pull it into a uniform sphere like the larger satellites and planets in the Solar System. Phobos may be an asteroid long ago captured by Mars' gravity, orbiting a mere 5,800 miles above Mars' surface, making it the closest satellite to its host planet in the Solar System

Phobos and Mars - Illustration - Phobos and Mars - Illustration - Artist's view of Phobos, the largest of Mars's two satellites. This is how Mars and its tiny satellite Phobos might appear from a distance of about 100 miles from Phobos' surface. Phobos is over the low martian plains of Syrtis Major. Below the plains extending down to Mars' terminator and beyond is the heavily cratered Terra Sabaea. Clouds of water - ice crystals are forming at the terminator between light and dark. Looking more like a common potato than a celestial body, Phobos is actually the larger of Mars' two satellites, with a length of about 16 miles and about 11 miles across its smallest dimension. Phobos does not have enough mass for gravity to pull it into a uniform sphere like the larger satellites and planets in the Solar System. Phobos may be an asteroid long ago captured by Mars' gravity, orbiting a mere 5,800 miles above Mars' surface, making it the closest satellite to its host planet in the Solar System

Walter B Myers

PIX4616778

Nebula IC 2948 in Centaurus - Nebula IC 2948 and IC 2944 in Centaurus: IC2944 - SHO 70 70 70 Bin 2 - Nebula IC 2948 is a vast nebula located about 6000 light 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 (in blue), hydrogen (in green), and sulfur (in 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 t

Nebula IC 2948 in Centaurus - Nebula IC 2948 and IC 2944 in Centaurus: IC2944 - SHO 70 70 70 Bin 2 - Nebula IC 2948 is a vast nebula located about 6000 light 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 (in blue), hydrogen (in green), and sulfur (in 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 t

W. Promper

PIX4622580

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Adam Block

PIX4620555

Dark Islands, Sound of Mull (A)

premium — Dark Islands, Sound of Mull (A)

Dark Islands, Sound of Mull (A)

Walker, Ethel (b.1941)

ETW5675575

Saturn seen by the Cassini probe on 9 - 05 - 2007 - Saturn in natural colors seen by Cassini spacecraft May 9 2007. - Saturn seen by the Cassini probe on 9 - 05 - 2007 at a distance of 1.1 million km from the planet. Mosaic of 45 images. Three satellites are visible in this image: Mimas (upper right), Janus (lower right) and Pandora (barely visible, near ring F, lower left). This natural color mosaic was acquired by the Cassini spacecraft as it soared 39 degrees above the unilluminated side of the rings. Little light makes its way through the rings to be scattered in Cassini's direction in this viewing geometry, making the rings appear somewhat dark compared to the reflective planet. Bright clouds play in the blue - gray skies of the north. The ring shadows continue to caress the planet as they slide farther south toward their momentary disappearance during equinox in 2009. The rings' reflected light illuminates the southern hemisphere on Saturn's night side. Three of Saturn's moons ar

Saturn seen by the Cassini probe on 9 - 05 - 2007 - Saturn in natural colors seen by Cassini spacecraft May 9 2007. - Saturn seen by the Cassini probe on 9 - 05 - 2007 at a distance of 1.1 million km from the planet. Mosaic of 45 images. Three satellites are visible in this image: Mimas (upper right), Janus (lower right) and Pandora (barely visible, near ring F, lower left). This natural color mosaic was acquired by the Cassini spacecraft as it soared 39 degrees above the unilluminated side of the rings. Little light makes its way through the rings to be scattered in Cassini's direction in this viewing geometry, making the rings appear somewhat dark compared to the reflective planet. Bright clouds play in the blue - gray skies of the north. The ring shadows continue to caress the planet as they slide farther south toward their momentary disappearance during equinox in 2009. The rings' reflected light illuminates the southern hemisphere on Saturn's night side. Three of Saturn's moons ar

PIX4625121

Cone Nebula NGC 2264 in the Unicorn - The Cone Nebula NGC 2264 in Monoceros - The Cone Nebula is a region H II located about 2600 years from Earth. It is accompanied by a cluster of stars called the Christmas tree. The bright star at the top is S Monocerotis, a star of magnitude 4.7. Image obtained by the 2.2m telescope of La Silla. NGC 2264 and the Christmas Tree cluster lies about 2600 light - years from Earth in the constellation of Monoceros, the Unicorn, not far from the more familiar figure of Orion, the Hunter. The image shows a region of space about 30 light - years across. The cluster is very bright and can easily be seen with binoculars. With a small telescope (whose lenses will turn the view upside down) the stars resemble the glittering lights on a Christmas tree. The dazzling star at the top is S Monocerotis, bright enough to be seen with the unaided eye. It is a massive multiple star system that only emerged from the dust and gas a few million years ago. At the bottom of

Cone Nebula NGC 2264 in the Unicorn - The Cone Nebula NGC 2264 in Monoceros - The Cone Nebula is a region H II located about 2600 years from Earth. It is accompanied by a cluster of stars called the Christmas tree. The bright star at the top is S Monocerotis, a star of magnitude 4.7. Image obtained by the 2.2m telescope of La Silla. NGC 2264 and the Christmas Tree cluster lies about 2600 light - years from Earth in the constellation of Monoceros, the Unicorn, not far from the more familiar figure of Orion, the Hunter. The image shows a region of space about 30 light - years across. The cluster is very bright and can easily be seen with binoculars. With a small telescope (whose lenses will turn the view upside down) the stars resemble the glittering lights on a Christmas tree. The dazzling star at the top is S Monocerotis, bright enough to be seen with the unaided eye. It is a massive multiple star system that only emerged from the dust and gas a few million years ago. At the bottom of

PIX4618657

Photograph of Stratocumulus

Photograph of Stratocumulus

UIG3524627

The Passing Storm, 1954 (oil on canvas)

The Passing Storm, 1954 (oil on canvas)

Newton, Algernon Cecil (1880-1968)

MAA312066

Great Dark Spot and Clouds on Neptune: Neptune- Illustration

Great Dark Spot and Clouds on Neptune: Neptune- Illustration

S. Numazawa

PIX4623943

Landscape, c.1892 (oil on canvas)

Landscape, c.1892 (oil on canvas)

Wyant, Alexander Helwig (1836-92)

HMA616205

The Impending Storm, 1872 (oil on canvas)

The Impending Storm, 1872 (oil on canvas)

Diaz de la Pena, Narcisse Virgile (1807-76)

HMA616142

Storm near Montmartre (oil on canvas)

Storm near Montmartre (oil on canvas)

Michel, Georges (1763-1843)

LMG209312

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

UIG867322

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Alain Le Garsmeur

LGM5905590

Bok's cells in NGC 281 (Cassiopee) - Bok globules in NGC 281 - View of a detail of the nebula NGC 281 in Cassiopee center on Bok's Globules. 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. Near these blood cells shine blue stars; they belong to the young cluster of stars IC 1590. Image obtained by the Hubble Space Telescope in October 2005. These opaque, dark knots of gas and dust are called “” Bok globules,””” and they are absorbing light in the center of the nearby emission nebula and star - forming region. Bok hypothesized that giant molecular clouds, on the order of hundreds of light - years in size, can become perturbed and form small pockets where the dust and gas are highly concentrated. These small pockets become gravitationally bound and accumulate dust and gas from the surrounding area. If they can capture enough mass, they have the potential of creating stars in their cores; however, no

Bok's cells in NGC 281 (Cassiopee) - Bok globules in NGC 281 - View of a detail of the nebula NGC 281 in Cassiopee center on Bok's Globules. 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. Near these blood cells shine blue stars; they belong to the young cluster of stars IC 1590. Image obtained by the Hubble Space Telescope in October 2005. These opaque, dark knots of gas and dust are called “” Bok globules,””” and they are absorbing light in the center of the nearby emission nebula and star - forming region. Bok hypothesized that giant molecular clouds, on the order of hundreds of light - years in size, can become perturbed and form small pockets where the dust and gas are highly concentrated. These small pockets become gravitationally bound and accumulate dust and gas from the surrounding area. If they can capture enough mass, they have the potential of creating stars in their cores; however, no

PIX4617491

Maiden Castle, central area of the prehistoric hill fort (photo)

Maiden Castle, central area of the prehistoric hill fort (photo)

STF257295

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

UIG867323

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Alain Le Garsmeur

LGM5905589

Ten (Grunewald), 1999 (gouache & pencil on paper)

Ten (Grunewald), 1999 (gouache & pencil on paper)

Reveles, Sam (b.1958)

DMA1071988

Neptune - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This image suggests how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a Gas Giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal - colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus ', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed “” The Great Dark Spot,””” is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of

Neptune - Illustration - Artist's view of Neptune with its ring system and large dark spot observed by the Voyager 2 probe in 1989. This image suggests how Neptune might look from a position in space above the plane of its rings. Like Uranus, Neptune is a Gas Giant, composed primarily of hydrogen and helium gases surrounding a relatively small, dense core of molten rock and metal. Also like Uranus, Neptune has charcoal - colored rings, although they appear to be fewer in number than Uranus's. While Neptune's diameter is slightly less than Uranus ', it has more mass. Neptune's blue color is due to the presence of methane in its upper atmosphere. The dark spot in the southern hemisphere beneath the rings, dubbed “” The Great Dark Spot,””” is believed to be a giant storm which was active in 1989 when Voyager 2 photographed Neptune. Just beyond the rings at Neptune's 7 o'clock position, barely discernable from the background stars, is the tiny satellite Proteus. With an average diameter of

Walter B Myers

PIX4624079

Dark Hills

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Walker, Ethel (b.1941)

ETW5674287

Dog Star Reef, 2000 (acrylic on canvas)

Dog Star Reef, 2000 (acrylic on canvas)

Maconochie, James (b.1965)

PAD712422

First contact during a total solar eclipse, 1 August 2008 (photo)

First contact during a total solar eclipse, 1 August 2008 (photo)

Sue Flood

NSP408008

Here Comes the Storm, 2008 (oil on canvas)

premium — Here Comes the Storm, 2008 (oil on canvas)

Here Comes the Storm, 2008 (oil on canvas)

PRS321981

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

In an infrared image from NASA's WISE there are some clouds that are so cool and thick that even infrared light coming from within or the background can't penetrate them. The black areas in this image are called infrared dark clouds.

UIG867325

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Sea of The Hebrides at sunset, Scotland, 2010 (photo)

Alain Le Garsmeur

LGM5905584

Vardohus Fortress (oil on canvas)

Vardohus Fortress (oil on canvas)

Balke, Peder (1804-87)

OVR388293

The Coming Storm (oil on canvas)

The Coming Storm (oil on canvas)

English School, (19th century)

XIR905314

Percuil river - winter morning light, Cornwall, 2008 (oil on linen)

premium — Percuil river - winter morning light, Cornwall, 2008 (oil on linen)

Percuil river - winter morning light, Cornwall, 2008 (oil on linen)

RFH325834

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