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Artist's view of a proto-star - Protostar Disk: A star proto is a pile of dust and gas that contracts to form a star

Artist's view of a proto-star - Protostar Disk: A star proto is a pile of dust and gas that contracts to form a star

Miller, Ron (b.1947)

PIX4572974

Nebula NGC 346 in the Small Magellan Cloud - Nebula NGC 346 in the Small Magellanic Cloud - Photo of the nebula NGC 346 in the galaxy of the Small Magellan Cloud obtained by the Hubble space telescope. At the center of this nebula, a cluster of very young stars in which some stars are only 5 million years old. Nebula NGC 346 in the Small Magellanic Cloud, a nearby irregular galaxy, seen by the Hubble space telescope in July 2004. In the center of this nebula, a cluster of very young stars, some of them are less than 5 million years old

Nebula NGC 346 in the Small Magellan Cloud - Nebula NGC 346 in the Small Magellanic Cloud - Photo of the nebula NGC 346 in the galaxy of the Small Magellan Cloud obtained by the Hubble space telescope. At the center of this nebula, a cluster of very young stars in which some stars are only 5 million years old. Nebula NGC 346 in the Small Magellanic Cloud, a nearby irregular galaxy, seen by the Hubble space telescope in July 2004. In the center of this nebula, a cluster of very young stars, some of them are less than 5 million years old

PIX4620832

Interacting galaxies NGC 4038 - 4039 in the Raven - The Antennae galaxy in Corvus - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. Image obtained by the Hubble Space Telescope. The two spiral galaxies started to interact a few hundred million years ago, making the Antennae galaxies one of the nearest (about 45 million light years away) and youngest examples of a pair of colliding galaxies. Almost half of the faint objects in the Antennae image are young clusters containing tens of thousands of stars. The orange blobs to the left and right of image center are the two cores of the original galaxies and consist mainly of old stars criss - crossed by filaments of dust, which appears brown in the image. The two galaxies are dotted with brilliant blue star - forming regions surrounded by glowing hydrogen gas, appearing in the

Interacting galaxies NGC 4038 - 4039 in the Raven - The Antennae galaxy in Corvus - Image of the galaxy NGC 4038 - 39 (antenna galaxy), located about 45 million years ago - light. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. Image obtained by the Hubble Space Telescope. The two spiral galaxies started to interact a few hundred million years ago, making the Antennae galaxies one of the nearest (about 45 million light years away) and youngest examples of a pair of colliding galaxies. Almost half of the faint objects in the Antennae image are young clusters containing tens of thousands of stars. The orange blobs to the left and right of image center are the two cores of the original galaxies and consist mainly of old stars criss - crossed by filaments of dust, which appears brown in the image. The two galaxies are dotted with brilliant blue star - forming regions surrounded by glowing hydrogen gas, appearing in the

PIX4611075

Nebula M43 in Orion - M43 nebula in Orion - Nebula M43 (NGC 1982) is part of the great Nebula of Orion (M42), a vast region of star formation. This image obtained by the Hubble Space Telescope (HST) shows a detail of the nebula people of bright young stars accompanied by very young stars still surrounded by their cocoon of dust. The NASA/ESA Hubble Space Telescope has taken a close - up view of an outer part of the Orion Nebula's little brother, Messier 43. This nebula, which is sometimes referred to as De Mairan's Nebula after its discoverer, is separated from the famous Orion Nebula (Messier 42) by only a dark lane of dust. Both nebulae are part of the massive stellar nursery called the Orion molecular cloud complex, which includes several other nebulae, such as the Horsehead Nebula (Barnard 33) and the Flame Nebula (NGC 2024). This view shows several of the brilliant hot young stars in this less - studied region and it also reveals many of the curious features around even younger st

Nebula M43 in Orion - M43 nebula in Orion - Nebula M43 (NGC 1982) is part of the great Nebula of Orion (M42), a vast region of star formation. This image obtained by the Hubble Space Telescope (HST) shows a detail of the nebula people of bright young stars accompanied by very young stars still surrounded by their cocoon of dust. The NASA/ESA Hubble Space Telescope has taken a close - up view of an outer part of the Orion Nebula's little brother, Messier 43. This nebula, which is sometimes referred to as De Mairan's Nebula after its discoverer, is separated from the famous Orion Nebula (Messier 42) by only a dark lane of dust. Both nebulae are part of the massive stellar nursery called the Orion molecular cloud complex, which includes several other nebulae, such as the Horsehead Nebula (Barnard 33) and the Flame Nebula (NGC 2024). This view shows several of the brilliant hot young stars in this less - studied region and it also reveals many of the curious features around even younger st

PIX4618093

Interacting galaxies ZW II 96 - Interacting galaxies ZW II 96 - The galaxy ZW II 96 is located about 500 million light years away from Earth in the constellation of the Dolphin. This system consists of interacting galaxies shows an important star formation. This is a system of merging galaxies with a bizarre shape. Powerful young starburst regions hang as long threadlike structures between the main galaxy cores. The system almost qualifies as an ultra - luminous system, but has not yet reached the late stage of coalescence that is the norm for most ultra - luminous systems. ZW II 96 is located in the constellation of Delphinus, the Dolphin, about 500 million light - years away from Earth

Interacting galaxies ZW II 96 - Interacting galaxies ZW II 96 - The galaxy ZW II 96 is located about 500 million light years away from Earth in the constellation of the Dolphin. This system consists of interacting galaxies shows an important star formation. This is a system of merging galaxies with a bizarre shape. Powerful young starburst regions hang as long threadlike structures between the main galaxy cores. The system almost qualifies as an ultra - luminous system, but has not yet reached the late stage of coalescence that is the norm for most ultra - luminous systems. ZW II 96 is located in the constellation of Delphinus, the Dolphin, about 500 million light - years away from Earth

PIX4613675

August 24, 2016: The three stars that make up the Centaur Alpha system are the closest stars to the Sun. Proxima du Centaur is located at a distance of 4.22 light years from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 light years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C - This image of the sky around the bright star Alpha Centauri AB also shows the much fainter red dwarf star, Proxima Centauri, the closest star to the Solar System. The picture was created from pictures forming part of the Digitized Sky Survey 2. The blue halo around Alpha Centauri AB is an artifact of the photographic process, the star is really pale yellow in colour like the Sun

August 24, 2016: The three stars that make up the Centaur Alpha system are the closest stars to the Sun. Proxima du Centaur is located at a distance of 4.22 light years from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 light years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C - This image of the sky around the bright star Alpha Centauri AB also shows the much fainter red dwarf star, Proxima Centauri, the closest star to the Solar System. The picture was created from pictures forming part of the Digitized Sky Survey 2. The blue halo around Alpha Centauri AB is an artifact of the photographic process, the star is really pale yellow in colour like the Sun

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Star Formation in the Southern Cross - Star Formation in the Southern Cross - Part of the lactee route in the constellation of the Southern Cross seen in infrared by the Herschel space telescope. The hottest dust appears in blue, the coldest ones appear in red, the new stars will be born. Composite images obtained by SPIRE and PACS instruments on September 3, 2009. Some of the coldest and darkest dust in space shines brightly in this infrared image from the Herschel Observatory, a European Space Agency mission with important participation from NASA. The image is a composite of light captured simultaneously by two of Herschel's three instruments - - the photodetector array camera and spectrometer, and its spectral and photometric imaging receiver. The image reveals a cold and turbulent region where material is just beginning to condense into new stars. It is located in the plane of our Milky Way galaxy, 60 degrees from the center. Blue shows warmer material, red the coolest. The red fil

Star Formation in the Southern Cross - Star Formation in the Southern Cross - Part of the lactee route in the constellation of the Southern Cross seen in infrared by the Herschel space telescope. The hottest dust appears in blue, the coldest ones appear in red, the new stars will be born. Composite images obtained by SPIRE and PACS instruments on September 3, 2009. Some of the coldest and darkest dust in space shines brightly in this infrared image from the Herschel Observatory, a European Space Agency mission with important participation from NASA. The image is a composite of light captured simultaneously by two of Herschel's three instruments - - the photodetector array camera and spectrometer, and its spectral and photometric imaging receiver. The image reveals a cold and turbulent region where material is just beginning to condense into new stars. It is located in the plane of our Milky Way galaxy, 60 degrees from the center. Blue shows warmer material, red the coolest. The red fil

PIX4621141

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

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 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

Barnard's Star Movement - The proper motion of Barnard's star - Barnard's Star is a red dwarf less than six years from Earth in the constellation Ophiuchus. Its proximity makes it move quickly ahead of the other stars. Barnard's star is known for having the most important clean movement. This composite image made from three images taken in 1988 (blue), 1991 (red) and 1993 (green) shows the shift of the star in 15 years. Barnard's Star is red dwarf star approximately 6 light - years away from Earth in the constellation of Ophiuchus Its proper motion is 10.3 arcseconds per year, which remains the largest known proper motion of any star relative to the Sun. The monochrome plates from which this 3 - colour picture were made were taken in 1988 (blue), 1991 (red) and 1993 (green) showing its movement over 15 years

Barnard's Star Movement - The proper motion of Barnard's star - Barnard's Star is a red dwarf less than six years from Earth in the constellation Ophiuchus. Its proximity makes it move quickly ahead of the other stars. Barnard's star is known for having the most important clean movement. This composite image made from three images taken in 1988 (blue), 1991 (red) and 1993 (green) shows the shift of the star in 15 years. Barnard's Star is red dwarf star approximately 6 light - years away from Earth in the constellation of Ophiuchus Its proper motion is 10.3 arcseconds per year, which remains the largest known proper motion of any star relative to the Sun. The monochrome plates from which this 3 - colour picture were made were taken in 1988 (blue), 1991 (red) and 1993 (green) showing its movement over 15 years

PIX4571864

Etoile Merope in the Pleiades cluster - M45 - The Merope Nebulosity and IC 349 - Close up on the star Merope des Pleiades and its nebulosite. Image obtained with a telescope of 30 cm; 6h30 total installation. Star Merope in Pleiades star cluster seen on this 6 hours 30 minutes cumulative exposure

Etoile Merope in the Pleiades cluster - M45 - The Merope Nebulosity and IC 349 - Close up on the star Merope des Pleiades and its nebulosite. Image obtained with a telescope of 30 cm; 6h30 total installation. Star Merope in Pleiades star cluster seen on this 6 hours 30 minutes cumulative exposure

R. Gendler

PIX4568868

Nebula NGC 1555 and star T - Tauri - Nebula NGC 1555 with T - Tauri - Nebula NGC 1555 (Hind variable nebula) in the constellation Tauri. Within this nebula a yellow cloud surrounds a T - Tauri star, a very young star in formation. The orange star in this view is T Tauri, prototype of the class of T Tauri variable stars. Nearby it is a dusty yellow cosmic cloud historically known as Hind's Variable Nebula (NGC 1555/1554). Over 400 light - years away, at the edge of a molecular cloud, both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally recognized as young (less than a few million years old), sun - like stars still in the early stages of formation

Nebula NGC 1555 and star T - Tauri - Nebula NGC 1555 with T - Tauri - Nebula NGC 1555 (Hind variable nebula) in the constellation Tauri. Within this nebula a yellow cloud surrounds a T - Tauri star, a very young star in formation. The orange star in this view is T Tauri, prototype of the class of T Tauri variable stars. Nearby it is a dusty yellow cosmic cloud historically known as Hind's Variable Nebula (NGC 1555/1554). Over 400 light - years away, at the edge of a molecular cloud, both star and nebula are seen to vary significantly in brightness but not necessarily at the same time, adding to the mystery of the intriguing region. T Tauri stars are now generally recognized as young (less than a few million years old), sun - like stars still in the early stages of formation

Adam Block

PIX4617573

Shooting star rain - Leonid Meteor Storm - Leonides, near Betelgeuse in Orion. 18 November 2001. 3 meteors near Betelgeuse in Orion. Nov 18, 2001

Shooting star rain - Leonid Meteor Storm - Leonides, near Betelgeuse in Orion. 18 November 2001. 3 meteors near Betelgeuse in Orion. Nov 18, 2001

Jerry Lodriguss

PIX4598766

Nebula IC 4628 in Scorpio - Nebula IC 4628 in Scorpius - Nebula with low light emission, IC 4628 (or Gum 56) is alongside the open cluster Collinder 316, which houses many hot young stars. This beautiful, arc - like rim of nebulosity is in the far southern sky, out of sight from most of the USA and Europe. It is quite faint and has often been overlooked because of it, even by southern observers. However, it is in a rich region in Scorpius. This richness is reflected in the number of names associated with the objects in the field illustrated here. There is a large scattered star cluster, Collinder 316 which extends over most of the picture. It encloses Trumpler 24, more or less the same cluster under another name, and all of this is part of the Sco OB1 association, a much larger gathering of very hot, intrinsically luminous stars in this part of the sky. The nebula itself is also known as Gum 56, after the Australian Colin Gum who catalogued emission nebulae in the southern sky using wi

Nebula IC 4628 in Scorpio - Nebula IC 4628 in Scorpius - Nebula with low light emission, IC 4628 (or Gum 56) is alongside the open cluster Collinder 316, which houses many hot young stars. This beautiful, arc - like rim of nebulosity is in the far southern sky, out of sight from most of the USA and Europe. It is quite faint and has often been overlooked because of it, even by southern observers. However, it is in a rich region in Scorpius. This richness is reflected in the number of names associated with the objects in the field illustrated here. There is a large scattered star cluster, Collinder 316 which extends over most of the picture. It encloses Trumpler 24, more or less the same cluster under another name, and all of this is part of the Sco OB1 association, a much larger gathering of very hot, intrinsically luminous stars in this part of the sky. The nebula itself is also known as Gum 56, after the Australian Colin Gum who catalogued emission nebulae in the southern sky using wi

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Interacting galaxies ESO 593 - 8 in Sagittarius - Interacting galaxies ESO 593 - 8 in Sagittarius - The galaxy ESO 593 - 8 is located about 650 million years away from Earth. It's a pair of interacting galaxies that will probably merge into a single galaxy. Regions of intense star formations appear in blue. Image obtained by the Hubble Space Telescope on 19 March 2002. ESO 593 - 8 is an impressive pair of interacting galaxies with a feather - like galaxy crossing a companion galaxy. The two components will probably merge to form a single galaxy in the future. The pair is adorned with a number of bright blue star clusters. ESO 593 - 8 is located in the constellation of Sagittarius, the Archer, some 650 million light - years away from Earth. Image taken by the Hubble space telescope on march 19, 2002

Interacting galaxies ESO 593 - 8 in Sagittarius - Interacting galaxies ESO 593 - 8 in Sagittarius - The galaxy ESO 593 - 8 is located about 650 million years away from Earth. It's a pair of interacting galaxies that will probably merge into a single galaxy. Regions of intense star formations appear in blue. Image obtained by the Hubble Space Telescope on 19 March 2002. ESO 593 - 8 is an impressive pair of interacting galaxies with a feather - like galaxy crossing a companion galaxy. The two components will probably merge to form a single galaxy in the future. The pair is adorned with a number of bright blue star clusters. ESO 593 - 8 is located in the constellation of Sagittarius, the Archer, some 650 million light - years away from Earth. Image taken by the Hubble space telescope on march 19, 2002

PIX4613620

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

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

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Nebula N159 in the Great Magellan Cloud - N159 star forming region in Large Magellanic Cloud (LMC): N159 is a star-forming region located in the galaxy of the Great Magellan Cloud. Image obtained by the Hubble Space Telescope (HST) - This shot from the NASA/ESA Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud (LMC). This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These stars are emitting intense ultraviolet light, which causes nearby hydrogen gas to glow, and torrential stellar winds, which are carving out ridges, arcs, and filaments from the surrounding material. At the heart of this cosmic cloud lies the Papillon Nebula, a butterfly-shaped region of nebulosity. This small, dense object is classified as a High-Excitation Blob, and is thought to be tightly linked to the early stages of massive star form

Nebula N159 in the Great Magellan Cloud - N159 star forming region in Large Magellanic Cloud (LMC): N159 is a star-forming region located in the galaxy of the Great Magellan Cloud. Image obtained by the Hubble Space Telescope (HST) - This shot from the NASA/ESA Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud (LMC). This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These stars are emitting intense ultraviolet light, which causes nearby hydrogen gas to glow, and torrential stellar winds, which are carving out ridges, arcs, and filaments from the surrounding material. At the heart of this cosmic cloud lies the Papillon Nebula, a butterfly-shaped region of nebulosity. This small, dense object is classified as a High-Excitation Blob, and is thought to be tightly linked to the early stages of massive star form

PIX4620798

Nebula of the Lagoon (M8) in Sagittarius - The Hourglass Nebula in M8, NGC 6523 - 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 on the left 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. Image made with Siding Spring's 3.9m telescope. At the heart of the Lagoon Nebula in Sagittarius lies the diminutive Hourglass Nebula. This extremely bright object is associated with the blue star alongside it, named Herschel 36 after its discoverer. Herschel described M8 as 'A noble nebula' and 'a fine and complicated nebula', but he was clearly intrigued by the Hourglass which he compared to the nucleus of the Andromeda nebula, M31 as 'decidedly not

Nebula of the Lagoon (M8) in Sagittarius - The Hourglass Nebula in M8, NGC 6523 - 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 on the left 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. Image made with Siding Spring's 3.9m telescope. At the heart of the Lagoon Nebula in Sagittarius lies the diminutive Hourglass Nebula. This extremely bright object is associated with the blue star alongside it, named Herschel 36 after its discoverer. Herschel described M8 as 'A noble nebula' and 'a fine and complicated nebula', but he was clearly intrigued by the Hourglass which he compared to the nucleus of the Andromeda nebula, M31 as 'decidedly not

PIX4619615

Tarantula Nebula (NGC 2070) in the river bream - The Tarantula Nebula - The Tarantula Nebula (or 30 Sea bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Image obtained with the large field camera of the 2.2m ESO/MPG telescope in Chile. Composite colour image of the Tarantula Nebula in the Large Magellanic Cloud (LMC) and its surroundings. The LMC is a satellite galaxy to our Milky Way system, located in the southern constellation Dorado (The Swordfish) at a distance of approximately 170,000 light - years. The image is based on 15 exposures in the visual part of the spectrum with the Wide Field Imager (WFI) camera on the 2.2 - m MPG/ESO telescope at the La Silla Observatory

Tarantula Nebula (NGC 2070) in the river bream - The Tarantula Nebula - The Tarantula Nebula (or 30 Sea bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Image obtained with the large field camera of the 2.2m ESO/MPG telescope in Chile. Composite colour image of the Tarantula Nebula in the Large Magellanic Cloud (LMC) and its surroundings. The LMC is a satellite galaxy to our Milky Way system, located in the southern constellation Dorado (The Swordfish) at a distance of approximately 170,000 light - years. The image is based on 15 exposures in the visual part of the spectrum with the Wide Field Imager (WFI) camera on the 2.2 - m MPG/ESO telescope at the La Silla Observatory

PIX4618203

Nebula NGC 346 in the Small Magellan Cloud - Nebula NGC 346 in the Small Magellanic Cloud - Photo of the nebula NGC 346 in the galaxy of the Small Magellan Cloud obtained by the Hubble space telescope. At the center of this nebula, a cluster of very young stars in which some stars are only 5 million years old. Nebula NGC 346 in the Small Magellanic Cloud, a nearby irregular galaxy, seen by the Hubble space telescope in July 2004. In the center of this nebula, a cluster of very young stars, some of them are less than 5 million years old

Nebula NGC 346 in the Small Magellan Cloud - Nebula NGC 346 in the Small Magellanic Cloud - Photo of the nebula NGC 346 in the galaxy of the Small Magellan Cloud obtained by the Hubble space telescope. At the center of this nebula, a cluster of very young stars in which some stars are only 5 million years old. Nebula NGC 346 in the Small Magellanic Cloud, a nearby irregular galaxy, seen by the Hubble space telescope in July 2004. In the center of this nebula, a cluster of very young stars, some of them are less than 5 million years old

R. Gendler

PIX4620855

Tarantula Nebula (NGC 2070) in the constellation of Bream - The Tarantula Nebula in Dorado - Tarantula Nebula in the large Magellan cloud seen with the FORS2 instrument on the KUEYEN telescope (VLT) February 1, 2000. The Tarantula Nebula (or 30 bream) is the largest star-forming region of the Magellan Grand Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. The Tarantula Nebula in the Large Magellanic Cloud, as obtained with FORS2 at KUEYEN (VLT) on the night of January 31 - February 1, 2000. It is a composite of three exposures

Tarantula Nebula (NGC 2070) in the constellation of Bream - The Tarantula Nebula in Dorado - Tarantula Nebula in the large Magellan cloud seen with the FORS2 instrument on the KUEYEN telescope (VLT) February 1, 2000. The Tarantula Nebula (or 30 bream) is the largest star-forming region of the Magellan Grand Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. The Tarantula Nebula in the Large Magellanic Cloud, as obtained with FORS2 at KUEYEN (VLT) on the night of January 31 - February 1, 2000. It is a composite of three exposures

PIX4618210

Around the Tarantula Nebula - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula, NGC 2070, is a vast star-forming region located north of the Great Magellan Cloud galaxy in the southern hemisphere about 170,000 years - light from Earth. Image obtained with Siding Spring's 3.9m telescope. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a monstrous stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula contains some of the most massive stars known

Around the Tarantula Nebula - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula, NGC 2070, is a vast star-forming region located north of the Great Magellan Cloud galaxy in the southern hemisphere about 170,000 years - light from Earth. Image obtained with Siding Spring's 3.9m telescope. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a monstrous stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula contains some of the most massive stars known

PIX4618312

Open Cluster of Pleiades - The Pleiades star cluster - The Pleiades cluster (M45) is a cluster of about 500 young stars nees 150 million years ago. Visible in the constellation Taurus, this cluster is 440 years from the Earth. Brown dwarfs have been observed in this cluster. The Pleiades star cluster, also known as the Seven Sisters and Messier 45 (M45), is one of the brightest and famous star clusters visible in the northern hemisphere. It consists of about 500 bright, hot, young stars that were all born at the same time between 75 and 150 million years ago within a large cloud of dust and gas. The cluster contains many stars, of which only a handful are commonly visible to the naked eye. The blue haze that accompanies them is due to very fine dust which still remains and preferentially reflects the blue light from the stars. This star cluster lie some 440 light years away from the Earth, in the constellation of Taurus

Open Cluster of Pleiades - The Pleiades star cluster - The Pleiades cluster (M45) is a cluster of about 500 young stars nees 150 million years ago. Visible in the constellation Taurus, this cluster is 440 years from the Earth. Brown dwarfs have been observed in this cluster. The Pleiades star cluster, also known as the Seven Sisters and Messier 45 (M45), is one of the brightest and famous star clusters visible in the northern hemisphere. It consists of about 500 bright, hot, young stars that were all born at the same time between 75 and 150 million years ago within a large cloud of dust and gas. The cluster contains many stars, of which only a handful are commonly visible to the naked eye. The blue haze that accompanies them is due to very fine dust which still remains and preferentially reflects the blue light from the stars. This star cluster lie some 440 light years away from the Earth, in the constellation of Taurus

PIX4568835

The three stars that make up the Centaur Alpha System are the closest stars to the Sun. The image on the left shows the double alpha star of the Centauri (Alpha Centauri A and B) overexposed to the red dwarf star Proxima of the Centaurus (indicated by the arrow). Proxima du Centaur is located at a distance of 4.22 years - light from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C. Location of the Alpha Centauri triple stellar system in the sky. The brighter stars (Alpha Centauri A and B) are strongly overexposed, with the outlying member, Proxima lying approx. 2.2* to the south - west (arrow). Smaller areas around the stars are shown in the inserts to the right. The photo has been reproduced from a blue - sen

The three stars that make up the Centaur Alpha System are the closest stars to the Sun. The image on the left shows the double alpha star of the Centauri (Alpha Centauri A and B) overexposed to the red dwarf star Proxima of the Centaurus (indicated by the arrow). Proxima du Centaur is located at a distance of 4.22 years - light from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C. Location of the Alpha Centauri triple stellar system in the sky. The brighter stars (Alpha Centauri A and B) are strongly overexposed, with the outlying member, Proxima lying approx. 2.2* to the south - west (arrow). Smaller areas around the stars are shown in the inserts to the right. The photo has been reproduced from a blue - sen

PIX4571830

Artist's view of a proto - star - Birth of a Proto - star - A proto - star is a pile of dust and gas that contracts to form a star

Artist's view of a proto - star - Birth of a Proto - star - A proto - star is a pile of dust and gas that contracts to form a star

PIX4572952

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

PIX4613542

Detail of the Tarantula Nebula (NGC 2070) in the Dorado - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Dorado) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of young, hot and massive stars, aged just 5 million years. Mosaic of 15 images obtained by the Hubble Space Telescope. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the Southern sky and is clearly visible to the naked eye as a large milky patch. Astronomers believe that this smallish irregular galaxy is currently going through a violent period in its life. It is orbiting around the Milky Way and has had several close encounters with it. It is believed that the interaction with the Milky Way has caused an episode of energetic star formation - part of which is visible as the Tarantula Nebula. Ju

Detail of the Tarantula Nebula (NGC 2070) in the Dorado - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Dorado) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of young, hot and massive stars, aged just 5 million years. Mosaic of 15 images obtained by the Hubble Space Telescope. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the Southern sky and is clearly visible to the naked eye as a large milky patch. Astronomers believe that this smallish irregular galaxy is currently going through a violent period in its life. It is orbiting around the Milky Way and has had several close encounters with it. It is believed that the interaction with the Milky Way has caused an episode of energetic star formation - part of which is visible as the Tarantula Nebula. Ju

PIX4618229

Clubs R136 in the Tarantula Nebula (NGC 2070) - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). In the center of this nebula, the open cluster of R136 stars (on the right), clusters of young, hot and massive stars, age barely 5 million years. Image obtained by the Hubble Space Telescope in October 2009. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the southern sky and is clearly visible to the naked eye as a large milky patch. To thr right of the image there is a huge cluster of very hot stars called R136. The stars in R136 are also among the most massive stars we know. R136 is also a very young cluster, its oldest stars being 'just' 5 million years old or so. Its smallest stars, however, are still forming. The image, taken in ultraviolet, visible, and red light by Hu

Clubs R136 in the Tarantula Nebula (NGC 2070) - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). In the center of this nebula, the open cluster of R136 stars (on the right), clusters of young, hot and massive stars, age barely 5 million years. Image obtained by the Hubble Space Telescope in October 2009. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the southern sky and is clearly visible to the naked eye as a large milky patch. To thr right of the image there is a huge cluster of very hot stars called R136. The stars in R136 are also among the most massive stars we know. R136 is also a very young cluster, its oldest stars being 'just' 5 million years old or so. Its smallest stars, however, are still forming. The image, taken in ultraviolet, visible, and red light by Hu

PIX4618335

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

Shooting Star Rain - Leonid Meteor Storm - Leonides, November 18, 2001. Radiant in the constellation Leo. Nov 18 2001

Shooting Star Rain - Leonid Meteor Storm - Leonides, November 18, 2001. Radiant in the constellation Leo. Nov 18 2001

Jerry Lodriguss

PIX4598770

Shooting star rain -Leonides 11/2001 - Leonid meteor storm Nov 19 200

Shooting star rain -Leonides 11/2001 - Leonid meteor storm Nov 19 200

S. Numazawa

PIX4598695

Nebula NGC 2170 in Unicorn - Nebula NGC 2170 in Monoceros - Nebula by reflexion located in the constellation Unicorn. This rich collection of predominantly reflection and sparse emission nebulosity exists in the western part of a vast star forming region known as the Mon R 2 association. The “” R”” designation stands for reflection and indicates an association of stars illuminating reflection nebulae. Most of the members of Mon R 2 are type B stars located along an east - west line stretching across 2 degrees of the winter sky, situated about 8 degrees east of the Orion Nebula. The Mon R 2 association resides at a distance of 830 pc and formed about 6 to 10 million years ago along the edge of the Mon R2 molecular cloud

Nebula NGC 2170 in Unicorn - Nebula NGC 2170 in Monoceros - Nebula by reflexion located in the constellation Unicorn. This rich collection of predominantly reflection and sparse emission nebulosity exists in the western part of a vast star forming region known as the Mon R 2 association. The “” R”” designation stands for reflection and indicates an association of stars illuminating reflection nebulae. Most of the members of Mon R 2 are type B stars located along an east - west line stretching across 2 degrees of the winter sky, situated about 8 degrees east of the Orion Nebula. The Mon R 2 association resides at a distance of 830 pc and formed about 6 to 10 million years ago along the edge of the Mon R2 molecular cloud

R. Gendler

PIX4618356

The evolution of the Sun - Illustration - The evolution of the Sun - Illustration - Artist's view of the evolution of a yellow star, such as the Sun

The evolution of the Sun - Illustration - The evolution of the Sun - Illustration - Artist's view of the evolution of a yellow star, such as the Sun

P. Carril

PIX4573041

Nebula NGC 7129 in Cephee: Nebula by reflexion located 3300 light years from Earth. This nebula houses very young stars, aged less than a million years old. - NGC 7129 is a young compact star forming region which displays an unusual patchwork of colorful nebulosity and bright stars contrasted against the dust clouds of the Milky Way. NGC 7129 contains several bright reflection nebulae including the large blue reflection cloud NGC 7133 and the unusual small yellow reflection cloud LBN497. Also conspicuous in the field are several bright Herbig-Haro objects, the signatures of young stellar objects soon to emerge in the main sequence. The dominant blue reflection nebula, NGC 7133 is illuminated by two young B-type stars BD+65* 1637 and BD+65* 1638. Both stars are less than one million years old and represent the core of NGC 7129, a small cluster of low mass stars which populate the 36 light year wide cavity

Nebula NGC 7129 in Cephee: Nebula by reflexion located 3300 light years from Earth. This nebula houses very young stars, aged less than a million years old. - NGC 7129 is a young compact star forming region which displays an unusual patchwork of colorful nebulosity and bright stars contrasted against the dust clouds of the Milky Way. NGC 7129 contains several bright reflection nebulae including the large blue reflection cloud NGC 7133 and the unusual small yellow reflection cloud LBN497. Also conspicuous in the field are several bright Herbig-Haro objects, the signatures of young stellar objects soon to emerge in the main sequence. The dominant blue reflection nebula, NGC 7133 is illuminated by two young B-type stars BD+65* 1637 and BD+65* 1638. Both stars are less than one million years old and represent the core of NGC 7129, a small cluster of low mass stars which populate the 36 light year wide cavity

PIX4620599

Open cluster Westerlund 1 in the Altar - Open cluster Westerlund 1 in Ara - The open cluster Westerlund 1 is located about 16,000 years - light in the southern constellation of the Altar. It contains hundreds of very young massive stars as well as the supergiant red star W26. Image obtained by the VST telescope in Chile. This exceptionally bright cluster lies about 16 000 light - years from Earth in the southern constellation of Ara (The Altar). It contains hundreds of very massive and brilliant stars, all of which are just a few million years old - - babies by stellar standards. But our view of this cluster is hampered by gas and dust that prevents most of the visible light from the cluster's stars from getting to Earth. Around one of the stars - - known as W26, a red supergiant and possibly the biggest star known - - astronomers have discovered clouds of glowing hydrogen gas, shown as green features in this new image. Such glowing clouds around massive stars are very rare, and are ev

Open cluster Westerlund 1 in the Altar - Open cluster Westerlund 1 in Ara - The open cluster Westerlund 1 is located about 16,000 years - light in the southern constellation of the Altar. It contains hundreds of very young massive stars as well as the supergiant red star W26. Image obtained by the VST telescope in Chile. This exceptionally bright cluster lies about 16 000 light - years from Earth in the southern constellation of Ara (The Altar). It contains hundreds of very massive and brilliant stars, all of which are just a few million years old - - babies by stellar standards. But our view of this cluster is hampered by gas and dust that prevents most of the visible light from the cluster's stars from getting to Earth. Around one of the stars - - known as W26, a red supergiant and possibly the biggest star known - - astronomers have discovered clouds of glowing hydrogen gas, shown as green features in this new image. Such glowing clouds around massive stars are very rare, and are ev

PIX4569073

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses (the brightest star in the top center of the image). The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. The small open star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 in Scorpius, about 8,000 light - years away from Earth. Some of the stars in this cluster are extremely massive and emit intense ultraviolet radiation. The brightest object in the picture is designated Pismis 24 - 1. It was once thought to weigh as much as 200 to 300 solar masses. This would not only have m

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses (the brightest star in the top center of the image). The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. The small open star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 in Scorpius, about 8,000 light - years away from Earth. Some of the stars in this cluster are extremely massive and emit intense ultraviolet radiation. The brightest object in the picture is designated Pismis 24 - 1. It was once thought to weigh as much as 200 to 300 solar masses. This would not only have m

PIX4569076

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses. The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. High - resolution observations from Hubble have shed light on the real mass of a star previously believed to be among the heaviest known in our Milky Way. Originally, the mass of the star was thought to be an incredible 200 - 300 solar masses, but turned out to be only 100 solar masses

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses. The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. High - resolution observations from Hubble have shed light on the real mass of a star previously believed to be among the heaviest known in our Milky Way. Originally, the mass of the star was thought to be an incredible 200 - 300 solar masses, but turned out to be only 100 solar masses

PIX4569078

Orion's Nebula - The Great Nebula in Orion - Located 1500 light years from Earth, Orion's Nebula is the closest region to the formation of stars of the Sun. In its heart, a group of young stars called Orion's Trapeze. To the eye, the nebula appears as a misty patch around the central star of the line of three which form Orion's sword. The central group of stars is the Trapezium cluster and these stars are responsible for producing the nebula. It is the high concentration of dust and gas in this part of the sky which has resulted in the formation of the stars, so the Orion nebula is no random association of bright stars and dusty gas. At a distance of 1500 light years, the Orion nebula is the nearest star-forming region to the Sun

Orion's Nebula - The Great Nebula in Orion - Located 1500 light years from Earth, Orion's Nebula is the closest region to the formation of stars of the Sun. In its heart, a group of young stars called Orion's Trapeze. To the eye, the nebula appears as a misty patch around the central star of the line of three which form Orion's sword. The central group of stars is the Trapezium cluster and these stars are responsible for producing the nebula. It is the high concentration of dust and gas in this part of the sky which has resulted in the formation of the stars, so the Orion nebula is no random association of bright stars and dusty gas. At a distance of 1500 light years, the Orion nebula is the nearest star-forming region to the Sun

Alex Conu

PIX4580124

Star cluster in the nebula NGC 3603 - Star cluster in NGC 3603 nebula - Cluster of young stars in the nebula NGC 3603, located about 20,000 years ago - light from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope on 29 December 2005. NGC 3603 is a prominent star - forming region located in the Carina spiral arm of the Milky Way, about 20,000 light - years away from our Solar System. This image from the NASA/ESA Hubble Space Telescope shows a young star cluster surrounded by a vast region of dust and gas. Most of the bright stars in the image are hot blue stars whose ultraviolet radiation and violent winds have blown out an enormous cavity in the gas and dust enveloping the cluster

Star cluster in the nebula NGC 3603 - Star cluster in NGC 3603 nebula - Cluster of young stars in the nebula NGC 3603, located about 20,000 years ago - light from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope on 29 December 2005. NGC 3603 is a prominent star - forming region located in the Carina spiral arm of the Milky Way, about 20,000 light - years away from our Solar System. This image from the NASA/ESA Hubble Space Telescope shows a young star cluster surrounded by a vast region of dust and gas. Most of the bright stars in the image are hot blue stars whose ultraviolet radiation and violent winds have blown out an enormous cavity in the gas and dust enveloping the cluster

PIX4619157

Star Sirius in the Great Dog - Sirius in Canis Major - Sirius is the main star in the constellation Big Dog. Seen from the Earth, Sirius is the brightest star in the sky after the Sun. Sirius, the Dog Star, is the brightest star in the night sky at mag - 1.44 and it dominates the constellation of Canis Major. Sirius is a binary star with a white dwarf companion named Sirius B, “” The Pup”. It is an eight - magnitude star that is separated from Sirius by only a couple of arc seconds making it difficult to observe in a telescope because of the primary's great brilliance

Star Sirius in the Great Dog - Sirius in Canis Major - Sirius is the main star in the constellation Big Dog. Seen from the Earth, Sirius is the brightest star in the sky after the Sun. Sirius, the Dog Star, is the brightest star in the night sky at mag - 1.44 and it dominates the constellation of Canis Major. Sirius is a binary star with a white dwarf companion named Sirius B, “” The Pup”. It is an eight - magnitude star that is separated from Sirius by only a couple of arc seconds making it difficult to observe in a telescope because of the primary's great brilliance

Jerry Lodriguss

PIX4571719

Variable star PV Cephei and nebula Gyulbudagyan - Variable star PV Cephei with Gyulbudagyan's nebula - PV Cephei is an excessively fast variable star, moving almost 20 km per second in the interstellar medium. This young star, formed about 500,000 years ago, is now more than 30 years ago - light from its birthplace, the cluster of stars of the Iris nebula, NGC 7023. PV Cephei is the small orange star with a gas cloud located in the upper left middle of the image. Image obtained on October 19, 2008 with a telescope measuring 61 cm in diameter. PV Cephei is a variable star moving at roughly 20 km/sec through the interstellar medium. This young star was formed about 500,000 years ago and is located now at about 30 light years from its birth place, the star cluster of Iris nebula (NGC 7023). PV Cephei is the small oranged star visible near the middle of the image, at right of the brilliant blue star. It is associated with a small cloud of gas. Image taken on October 19 2008 with a 24 - inc

Variable star PV Cephei and nebula Gyulbudagyan - Variable star PV Cephei with Gyulbudagyan's nebula - PV Cephei is an excessively fast variable star, moving almost 20 km per second in the interstellar medium. This young star, formed about 500,000 years ago, is now more than 30 years ago - light from its birthplace, the cluster of stars of the Iris nebula, NGC 7023. PV Cephei is the small orange star with a gas cloud located in the upper left middle of the image. Image obtained on October 19, 2008 with a telescope measuring 61 cm in diameter. PV Cephei is a variable star moving at roughly 20 km/sec through the interstellar medium. This young star was formed about 500,000 years ago and is located now at about 30 light years from its birth place, the star cluster of Iris nebula (NGC 7023). PV Cephei is the small oranged star visible near the middle of the image, at right of the brilliant blue star. It is associated with a small cloud of gas. Image taken on October 19 2008 with a 24 - inc

Adam Block

PIX4572360

Star Flames - Artist View - Starburst region Artwork - Multiple Star Births

Star Flames - Artist View - Starburst region Artwork - Multiple Star Births

S. Numazawa

PIX4572914

Nebula of the cone NGC 2264 in the Unicorn - The Cone Nebula in Monoceros - Region H II located about 2600 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The Cone nebula is part of an enormous cloud of hydrogen and tiny solid particles associated with the loose open cluster, NGC 2226 in the equatorial constellation of Monoceros. Within and around this cloud are many recently formed stars, some completely hidden within the dense interstellar matter. They can be detected by special infra - red techniques which are able to penetrate the obscuration. The largest of the dust clouds is the curious straight - sided feature which gives this object its name

Nebula of the cone NGC 2264 in the Unicorn - The Cone Nebula in Monoceros - Region H II located about 2600 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The Cone nebula is part of an enormous cloud of hydrogen and tiny solid particles associated with the loose open cluster, NGC 2226 in the equatorial constellation of Monoceros. Within and around this cloud are many recently formed stars, some completely hidden within the dense interstellar matter. They can be detected by special infra - red techniques which are able to penetrate the obscuration. The largest of the dust clouds is the curious straight - sided feature which gives this object its name

PIX4618601

Interacting galaxies NGC 4038 - 4039 in the Raven - The Antennae galaxy in Corvus - The galaxy NGC 4038 - 39 (antenna galaxy) is located about 45 million years ago - light. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. These images made by the Hubble space telescope on 20 January 1996 show in detail the nuclei of these two twin galaxies (right) as well as clusters of blue stars, consisting of young and massive stars (left). The scale bar at the top of each image represents 1500 years - light. These four close - up views are taken from a head - on collision between two spiral galaxies, called the Antennae galaxies, seen at image center. The scale bar at the top of each image is 1,500 light - years across. Left: the collision triggers the birth of new stars in brilliant blue star clusters, the brightest of which contains roughly a million stars. The star clusters are blue because they are very young, the youngest b

Interacting galaxies NGC 4038 - 4039 in the Raven - The Antennae galaxy in Corvus - The galaxy NGC 4038 - 39 (antenna galaxy) is located about 45 million years ago - light. These two galaxies are interacting. The collision started at least 100 million years ago causes intense star formation. These images made by the Hubble space telescope on 20 January 1996 show in detail the nuclei of these two twin galaxies (right) as well as clusters of blue stars, consisting of young and massive stars (left). The scale bar at the top of each image represents 1500 years - light. These four close - up views are taken from a head - on collision between two spiral galaxies, called the Antennae galaxies, seen at image center. The scale bar at the top of each image is 1,500 light - years across. Left: the collision triggers the birth of new stars in brilliant blue star clusters, the brightest of which contains roughly a million stars. The star clusters are blue because they are very young, the youngest b

PIX4611053

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

PIX4617852

Orion M43 Nebula and the Trapeze - The Orion Nebula, M43 and Trapezium - The M43 Nebula (NGC 1982) is part of the large Orion Nebula (M42), the central part of which can be seen at the bottom right. The Trapeze d'Orion is a very young cluster of stars nestled in the heart of the nebula. Located 1500 years - light, Orion's Nebula is the closest region of formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. Nebula M43 (NGC 1982) belongs to the great Orion nebula (M42), seen at bottom. This image also reveals the Orion Trapezium, a group of stars (bottom right) that makes the Orion nebula shine. Orion Nebula is located at a distance of about 1500 light years

Orion M43 Nebula and the Trapeze - The Orion Nebula, M43 and Trapezium - The M43 Nebula (NGC 1982) is part of the large Orion Nebula (M42), the central part of which can be seen at the bottom right. The Trapeze d'Orion is a very young cluster of stars nestled in the heart of the nebula. Located 1500 years - light, Orion's Nebula is the closest region of formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. Nebula M43 (NGC 1982) belongs to the great Orion nebula (M42), seen at bottom. This image also reveals the Orion Trapezium, a group of stars (bottom right) that makes the Orion nebula shine. Orion Nebula is located at a distance of about 1500 light years

PIX4618092

Field around the Nebula Henize 55 - The Henize 55 star forming region in the LMC - Henize 55 (NGC 2014), on the right, is a star-forming region located north of the Great Magellan Cloud. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. The nearby Large Magellanic Cloud (LMC) is a very active star - forming galaxy. The most massive region of star formation is around 30 Doradus (the Tarantula nebula) which can be seen with the unaided eye, but hundreds of lesser examples are visible with a telescope. This picture shows one of the more intriguing, NGC 2014 (Henize 55), at right. It contains cluster of hot, young stars, almost hidden in the brightest part of the nebula. The energetic ultraviolet light from these stars is absorbed by hydrogen and produces the distinctive red glow from an enormous distance around the cluster. This picture was made photographically from three glass plates taken with the UK Schmidt telescope of Siding Spring

Field around the Nebula Henize 55 - The Henize 55 star forming region in the LMC - Henize 55 (NGC 2014), on the right, is a star-forming region located north of the Great Magellan Cloud. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. The nearby Large Magellanic Cloud (LMC) is a very active star - forming galaxy. The most massive region of star formation is around 30 Doradus (the Tarantula nebula) which can be seen with the unaided eye, but hundreds of lesser examples are visible with a telescope. This picture shows one of the more intriguing, NGC 2014 (Henize 55), at right. It contains cluster of hot, young stars, almost hidden in the brightest part of the nebula. The energetic ultraviolet light from these stars is absorbed by hydrogen and produces the distinctive red glow from an enormous distance around the cluster. This picture was made photographically from three glass plates taken with the UK Schmidt telescope of Siding Spring

PIX4620819

Shooting star -Perseide - Perseid meteor - Trainee left by the passage of a shooting star on August 8, 1997. Trail left by a bright Perseid meteor. August 8, 1997

Shooting star -Perseide - Perseid meteor - Trainee left by the passage of a shooting star on August 8, 1997. Trail left by a bright Perseid meteor. August 8, 1997

Sebastian Voltmer

PIX4598877

Artist's view of an eruptive star - Flare star - Artwork: DG Canum Venaticorum (DG CVN) is a binary star located in the constellation Hunting Dogs. On 23 April 2014, a powerful gamma eruption from this system was recorded by the Swift satellite. DG Canum Venaticorum (DG CVN) is a binary star system in the northern constellation of Canes Venatici. On 2014 April 23, 2014, a gamma-ray superflare event was observed by the Swift satellite coming from the position of this system. It may have been perhaps the most luminous such events ever observed coming from a red dwarf star

Artist's view of an eruptive star - Flare star - Artwork: DG Canum Venaticorum (DG CVN) is a binary star located in the constellation Hunting Dogs. On 23 April 2014, a powerful gamma eruption from this system was recorded by the Swift satellite. DG Canum Venaticorum (DG CVN) is a binary star system in the northern constellation of Canes Venatici. On 2014 April 23, 2014, a gamma-ray superflare event was observed by the Swift satellite coming from the position of this system. It may have been perhaps the most luminous such events ever observed coming from a red dwarf star

PIX4572752

Young stars in the dwarf galaxy NGC 4163 - Young stars in dwarf galaxy NGC 4163 - NGC 4163 is an irregular dwarf galaxy located about 10 million years ago - light of the Earth in the constellation Hunting Dogs

Young stars in the dwarf galaxy NGC 4163 - Young stars in dwarf galaxy NGC 4163 - NGC 4163 is an irregular dwarf galaxy located about 10 million years ago - light of the Earth in the constellation Hunting Dogs

PIX4611122

S star Monocerotis and nebula - Fox Fur nebula in Monoceros - The region to the right of the bright star S Monocerotis is called Fox Fur nebula. This region where gas mixes with interstellar dust is located above the Cone nebula, about 2600 light years from Earth. Image obtained with a 50 cm telescope, composite of several images. The region around the 4.7 magnitude star S Mon is a fascinating mixture of red fluorescent hydrogen and dark, obscuring dust lanes. Some dust patches are close enough to bright stars to reflect light from them; these appear blue for the same reason that the day - time sky is blue - because some of the interstellar particles preferentially scatter blue light. The dust is mixed with gas and this affects the appearance of the emission nebulae, giving some of the faintest a curious 'fox fur' texture in this photograph. S Mon is part of a young open cluster of stars named NGC 2264 located about 2600 light years away, just north of the Cone nebula

S star Monocerotis and nebula - Fox Fur nebula in Monoceros - The region to the right of the bright star S Monocerotis is called Fox Fur nebula. This region where gas mixes with interstellar dust is located above the Cone nebula, about 2600 light years from Earth. Image obtained with a 50 cm telescope, composite of several images. The region around the 4.7 magnitude star S Mon is a fascinating mixture of red fluorescent hydrogen and dark, obscuring dust lanes. Some dust patches are close enough to bright stars to reflect light from them; these appear blue for the same reason that the day - time sky is blue - because some of the interstellar particles preferentially scatter blue light. The dust is mixed with gas and this affects the appearance of the emission nebulae, giving some of the faintest a curious 'fox fur' texture in this photograph. S Mon is part of a young open cluster of stars named NGC 2264 located about 2600 light years away, just north of the Cone nebula

R. Jay GaBany

PIX4618712

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 with a 50 cm telescope, composite of several images. Total installation of 52 hours. The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light - years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone. The brightest star on top of the image is S Monocerotis. This image was created by stitching six separate photographs, featuring over 52 total hours of exposure, into a single seamless mosaic. The exposures

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 with a 50 cm telescope, composite of several images. Total installation of 52 hours. The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light - years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone. The brightest star on top of the image is S Monocerotis. This image was created by stitching six separate photographs, featuring over 52 total hours of exposure, into a single seamless mosaic. The exposures

R. Jay GaBany

PIX4618663

Cone Nebula NGC 2264 in Unicorn - The Cone Nebula NGC 2264 in Monoceros: The Cone Nebula is a star-forming region located about 2600 light years from Earth. It is accompanied by a cluster of stars called the Christmas tree. Mosaic of images - The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light-years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone.

Cone Nebula NGC 2264 in Unicorn - The Cone Nebula NGC 2264 in Monoceros: The Cone Nebula is a star-forming region located about 2600 light years from Earth. It is accompanied by a cluster of stars called the Christmas tree. Mosaic of images - The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light-years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone.

PIX4618674

Open cluster Westerlund 2 in Carene - Open cluster Westerlund 2 in Carina - The open cluster Westerlund 2 is located about 20,000 years - light in the southern constellation of Carene, within the nebula Gum 29. About 3000 stars form this cluster. It contains a significant number of massive stars including one of the most massive stars known to date: WR 20a. Image obtained by the Hubble Space Telescope. The sparkling centerpiece of this image taken by the Hubble space telescope is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light - years away from Earth in the constellation Carina. To capture this image, Hubble's near - infrared Wide Field Camera 3 near - infrared pierced through the dusty veil shrouding the stellar nursery, giving astronomers a clear view of the nebula and the dense concentration

Open cluster Westerlund 2 in Carene - Open cluster Westerlund 2 in Carina - The open cluster Westerlund 2 is located about 20,000 years - light in the southern constellation of Carene, within the nebula Gum 29. About 3000 stars form this cluster. It contains a significant number of massive stars including one of the most massive stars known to date: WR 20a. Image obtained by the Hubble Space Telescope. The sparkling centerpiece of this image taken by the Hubble space telescope is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light - years away from Earth in the constellation Carina. To capture this image, Hubble's near - infrared Wide Field Camera 3 near - infrared pierced through the dusty veil shrouding the stellar nursery, giving astronomers a clear view of the nebula and the dense concentration

PIX4569094

Red Dwarf Star Proxima of Centauri - Proxima Centauri in X - Ray - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. It belongs to the triple Alpha star system of the Centaurus being the least bright star of this system; it is a red dwarf star. X-ray image obtained by the Chandra space telescope. Chandra and XMM - Newton observations of the red dwarf star Proxima Centauri have shown that its surface is in a state of turmoil. Flares, or explosive outbursts, occur almost continually. This behavior can be traced to Proxima Centauri's low mass, about a tenth that of the Sun. In the cores of low mass stars, nuclear fusion reactions that convert hydrogen to helium proceed very slowly, and create a turbulent, convective motion throughout their interiors. This motion stores up magnetic energy which is often released explosively in the star's upper atmosphere where it produces flares in X - rays and other forms of light. The same

Red Dwarf Star Proxima of Centauri - Proxima Centauri in X - Ray - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. It belongs to the triple Alpha star system of the Centaurus being the least bright star of this system; it is a red dwarf star. X-ray image obtained by the Chandra space telescope. Chandra and XMM - Newton observations of the red dwarf star Proxima Centauri have shown that its surface is in a state of turmoil. Flares, or explosive outbursts, occur almost continually. This behavior can be traced to Proxima Centauri's low mass, about a tenth that of the Sun. In the cores of low mass stars, nuclear fusion reactions that convert hydrogen to helium proceed very slowly, and create a turbulent, convective motion throughout their interiors. This motion stores up magnetic energy which is often released explosively in the star's upper atmosphere where it produces flares in X - rays and other forms of light. The same

PIX4571790

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 towards 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 know

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 towards 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 know

PIX4619593

Gamma Velorum - Gamma Velorum - Gamma Velorum is the brightest star in the southern constellation Sails. It's a Wolf - Rayet star associated with a blue star. Wolf - Rayet stars are extremely massive stars that lose their material by a powerful stellar wind. At the bottom of the picture, the open cluster NGC 2547. Gamma Velorum in the constellation Vela is the brightest Wolf - Rayet star in the sky. These stars have masses 10 - 50 times larger than our sun. Also visible at bottom right is open cluster NGC 2547

Gamma Velorum - Gamma Velorum - Gamma Velorum is the brightest star in the southern constellation Sails. It's a Wolf - Rayet star associated with a blue star. Wolf - Rayet stars are extremely massive stars that lose their material by a powerful stellar wind. At the bottom of the picture, the open cluster NGC 2547. Gamma Velorum in the constellation Vela is the brightest Wolf - Rayet star in the sky. These stars have masses 10 - 50 times larger than our sun. Also visible at bottom right is open cluster NGC 2547

Christopher Picking

PIX4572046

Artist's view of a star birth - Birth of a star. Artwork - A proto - star is a pile of gas and dust that contracts and rotates around its center of gravity. When the mass of this core of matter is sufficient, the temperature rises and the nucleus reactions make the star shine. A protostar is an object that forms by contraction out of big gas of a molecular cloud. When the heart of this matter is big enough, its temperature increases and nuclear reactions make the star shine

Artist's view of a star birth - Birth of a star. Artwork - A proto - star is a pile of gas and dust that contracts and rotates around its center of gravity. When the mass of this core of matter is sufficient, the temperature rises and the nucleus reactions make the star shine. A protostar is an object that forms by contraction out of big gas of a molecular cloud. When the heart of this matter is big enough, its temperature increases and nuclear reactions make the star shine

H. Piraud

PIX4572919

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