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Images de 'Radiation Of Light' médias trouvés, 238

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Interior of a fallout shelter model

Interior of a fallout shelter model

SSI2176722

Map of Fossil Radiation Seen by Planck - The cosmic microwave background as seen by Planck - The European Space Agency's Planck space telescope is the source of the data on the most detailed map ever drawn of the Cosmological Hyperrequency background radiation - the fossil radiation of the Big Bang. This image is based on data from the first 15 months of Planck operation. It is the first image of this mission that shows on the whole sky the oldest emission of light that bathed our young Universe when it was only 380,000 years old. The Universe was then filled with a burning magma of protons, electrons, and photons intertwining at about 2700oC. The interaction between protons and electrons that gave rise to the hydrogen atoms then released light. As a result of the expansion of the Universe, this light has been extended until today reaches hyperfrequency wavelengths equivalent to a temperature of just 2.7 degrees above the absolute zero. This hyperfrequency cosmological background radia

Map of Fossil Radiation Seen by Planck - The cosmic microwave background as seen by Planck - The European Space Agency's Planck space telescope is the source of the data on the most detailed map ever drawn of the Cosmological Hyperrequency background radiation - the fossil radiation of the Big Bang. This image is based on data from the first 15 months of Planck operation. It is the first image of this mission that shows on the whole sky the oldest emission of light that bathed our young Universe when it was only 380,000 years old. The Universe was then filled with a burning magma of protons, electrons, and photons intertwining at about 2700oC. The interaction between protons and electrons that gave rise to the hydrogen atoms then released light. As a result of the expansion of the Universe, this light has been extended until today reaches hyperfrequency wavelengths equivalent to a temperature of just 2.7 degrees above the absolute zero. This hyperfrequency cosmological background radia

PIX4634328

Map of the sky seen by Planck - The microwave sky as seen by Planck - 380,000 years after the formation of the universe, when the temperature had become low enough, the light could be released from the extremely dense material that imprisoned it and spread throughout the universe. This moment appears to us today in the form of a radiation called fossil radiation, or cosmological diffuse background. This image is the map of temperature fluctuations of the cosmological diffuse background (in orange) seen by the Planck satellite between August 2009 and June 2010. Overlay, in blue, the Lactee Way and clear, filamentary structures that extend beyond the plane of our Lactee Way. This multi-frequency all-sky image of the microwave sky has been composed using data from Planck covering the electromagnetic spectrum from 30 GHz to 857 GHz. The mottled structure of the CMBR, with its tiny temperature fluctuations reflecting the primordial density variations from which today's cosmic structure orig

Map of the sky seen by Planck - The microwave sky as seen by Planck - 380,000 years after the formation of the universe, when the temperature had become low enough, the light could be released from the extremely dense material that imprisoned it and spread throughout the universe. This moment appears to us today in the form of a radiation called fossil radiation, or cosmological diffuse background. This image is the map of temperature fluctuations of the cosmological diffuse background (in orange) seen by the Planck satellite between August 2009 and June 2010. Overlay, in blue, the Lactee Way and clear, filamentary structures that extend beyond the plane of our Lactee Way. This multi-frequency all-sky image of the microwave sky has been composed using data from Planck covering the electromagnetic spectrum from 30 GHz to 857 GHz. The mottled structure of the CMBR, with its tiny temperature fluctuations reflecting the primordial density variations from which today's cosmic structure orig

PIX4634312

Star Vega in the Lyre - Star Vega in infrared - Vega (Alpha Lyrae) is the main star of the constellation Lyra, located only 25.4 light years from the Sun. It is the second brightest star after Sirius in the northern hemisphere. It's seen here in infrared by the Spitzer space telescope. Observed in this wavelength, the dust cloud surrounding the star appears. Nasa's Spitzer Space Telescope captured these images of the star Vega, located 25 light years away in the constellation Lyra. Spitzer was able to detect the heat radiation from the cloud of dust around the star and found that the debris disk is much larger than previously thought. This side - by - side comparison, taken by Spitzer's multiband imaging photometer, shows the warm infrared glows from dust particles orbiting the star at wavelengths of 24 microns (on the left in blue) and 70 microns (on the right in red). Both images show a very large, circular and smooth debris disk. The disk radius extends to at least 815 astronomical

Star Vega in the Lyre - Star Vega in infrared - Vega (Alpha Lyrae) is the main star of the constellation Lyra, located only 25.4 light years from the Sun. It is the second brightest star after Sirius in the northern hemisphere. It's seen here in infrared by the Spitzer space telescope. Observed in this wavelength, the dust cloud surrounding the star appears. Nasa's Spitzer Space Telescope captured these images of the star Vega, located 25 light years away in the constellation Lyra. Spitzer was able to detect the heat radiation from the cloud of dust around the star and found that the debris disk is much larger than previously thought. This side - by - side comparison, taken by Spitzer's multiband imaging photometer, shows the warm infrared glows from dust particles orbiting the star at wavelengths of 24 microns (on the left in blue) and 70 microns (on the right in red). Both images show a very large, circular and smooth debris disk. The disk radius extends to at least 815 astronomical

PIX4571758

Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

PIX4619137

Dark Nebula in Scorpio - A dark cloud in Scorpius, wide field - This dark nebula is located about 5000 years from Earth. Image obtained by Siding Spring's 3.9m telescope. This curious un - named nebula is governed by radiation from very luminous stars some distance from the nebula. The direction of the radiation source can be seen from the flow pattern in the dark cloud and the extensive bright red rims at the end of the nebula that is exposed to radiation from the hot stars. This part of the nebula is reminiscent of the famous Horsehead nebula in Orion, which is also the consequence of starlight destroying a dark cloud. The source of the energy here is the Scorpius OB association, a group of brilliant, very hot stars, about 5000 light years away from us

Dark Nebula in Scorpio - A dark cloud in Scorpius, wide field - This dark nebula is located about 5000 years from Earth. Image obtained by Siding Spring's 3.9m telescope. This curious un - named nebula is governed by radiation from very luminous stars some distance from the nebula. The direction of the radiation source can be seen from the flow pattern in the dark cloud and the extensive bright red rims at the end of the nebula that is exposed to radiation from the hot stars. This part of the nebula is reminiscent of the famous Horsehead nebula in Orion, which is also the consequence of starlight destroying a dark cloud. The source of the energy here is the Scorpius OB association, a group of brilliant, very hot stars, about 5000 light years away from us

PIX4621577

Coeur de la nebula de la Lagoon dans le sagittarius/HST - This NASA Hubble Space Telescope (HST) image reveals a pair of one - half light - year long interstellar “” twisters”” in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 light - years away in the direction of the constellation Sagittarius. The central hot O type star, Herschel 36 (lower right), is the primary source of the ionizing radiation for the brightest region in the nebula, called the Hourglass. Other hot stars, also present in the nebula, are ionizing the extended optical nebulosity. The ionizing radiation induces photo - evaporation of the surfaces of the clouds and drives away violent stellar winds tearing into the cool clouds. Analogous to the spectacular phenomena of Earth tornadoes, the large difference in temperature between the hot surface and cold interior of the clouds, combined with the pressure of starlight, may produce strong horizontal shear to twist the clouds into their tornado - like appearanc

Coeur de la nebula de la Lagoon dans le sagittarius/HST - This NASA Hubble Space Telescope (HST) image reveals a pair of one - half light - year long interstellar “” twisters”” in the heart of the Lagoon Nebula (Messier 8) which lies 5,000 light - years away in the direction of the constellation Sagittarius. The central hot O type star, Herschel 36 (lower right), is the primary source of the ionizing radiation for the brightest region in the nebula, called the Hourglass. Other hot stars, also present in the nebula, are ionizing the extended optical nebulosity. The ionizing radiation induces photo - evaporation of the surfaces of the clouds and drives away violent stellar winds tearing into the cool clouds. Analogous to the spectacular phenomena of Earth tornadoes, the large difference in temperature between the hot surface and cold interior of the clouds, combined with the pressure of starlight, may produce strong horizontal shear to twist the clouds into their tornado - like appearanc

PIX4619687

Detail of the nebula Omega (M17) by HST - This Hubble photograph captures a small region within Messier 17 (M17), a hotbed of star formation. M17, also known as the Omega or Swan Nebula, is located about 5500 light - years away in the Sagittarius constellation. The wave - like patterns of gas have been sculpted and illuminated by a torrent of ultraviolet radiation from young, massive stars (which lie outside the picture to the upper left). The glow of these patterns highlights the 3D structure of the gases. The ultraviolet radiation is carving and heating the surfaces of cold hydrogen gas clouds. The image, roughly 3 light - years across, was taken on 29 - 30 May 1999, with Hubble's Wide Field Planetary Camera 2. The colours in the image represent various gases. Red represents sulphur; green, hydrogen; and blue, oxygen

Detail of the nebula Omega (M17) by HST - This Hubble photograph captures a small region within Messier 17 (M17), a hotbed of star formation. M17, also known as the Omega or Swan Nebula, is located about 5500 light - years away in the Sagittarius constellation. The wave - like patterns of gas have been sculpted and illuminated by a torrent of ultraviolet radiation from young, massive stars (which lie outside the picture to the upper left). The glow of these patterns highlights the 3D structure of the gases. The ultraviolet radiation is carving and heating the surfaces of cold hydrogen gas clouds. The image, roughly 3 light - years across, was taken on 29 - 30 May 1999, with Hubble's Wide Field Planetary Camera 2. The colours in the image represent various gases. Red represents sulphur; green, hydrogen; and blue, oxygen

PIX4620187

Dark Nebula in Scorpio - A dark cloud in Scorpius - This dark nebula is located about 5000 years from Earth. Image obtained by Siding Spring's 3.9m telescope. This curious un - named nebula is governed by radiation from very luminous stars some distance from the nebula. The direction of the radiation source can be seen from the flow pattern in the dark cloud and the extensive bright red rims at the end of the nebula that is exposed to radiation from the hot stars. This part of the nebula is reminiscent of the famous Horsehead nebula in Orion, which is also the consequence of starlight destroying a dark cloud. The source of the energy here is the Scorpius OB association, a group of brilliant, very hot stars, about 5000 light years away from us

Dark Nebula in Scorpio - A dark cloud in Scorpius - This dark nebula is located about 5000 years from Earth. Image obtained by Siding Spring's 3.9m telescope. This curious un - named nebula is governed by radiation from very luminous stars some distance from the nebula. The direction of the radiation source can be seen from the flow pattern in the dark cloud and the extensive bright red rims at the end of the nebula that is exposed to radiation from the hot stars. This part of the nebula is reminiscent of the famous Horsehead nebula in Orion, which is also the consequence of starlight destroying a dark cloud. The source of the energy here is the Scorpius OB association, a group of brilliant, very hot stars, about 5000 light years away from us

PIX4621590

Solar Sails - Artist View - Solar sails - Artist view - Artist view of probes using solar wind and photons emitted by the Sun as a means of propulsion. The spacecraft deploys a large membrane mirror which reflects light from the Sun, or some other source. The radiation pressure on the mirror provides a tiny amount of thrust by reflecting photons

Solar Sails - Artist View - Solar sails - Artist view - Artist view of probes using solar wind and photons emitted by the Sun as a means of propulsion. The spacecraft deploys a large membrane mirror which reflects light from the Sun, or some other source. The radiation pressure on the mirror provides a tiny amount of thrust by reflecting photons

P. Carril

PIX4640409

Centre de la nebula de la Lagoon (M8) dans le Sagittarius - In the heart of the Lagoon Nebula - Centre de la nebula de la Lagoon (M8) vue par le telescope Hubble (HST). This close - up shot of the centre of the Lagoon Nebula (Messier 8) clearly shows the delicate structures formed when the powerful radiation of young stars interacts with the hydrogen cloud they formed from. This image was created from exposures taken with the Wide Field Channel of the Advanced Camera for Surveys on Hubble. Light from glowing hydrogen (through the F658N filter) is coloured red. Light from ionised nitrogen (through the F660N filter) is coloured green and light through a yellow filter (F550M) is coloured blue. The exposure times through each filter are 1560 s, 1600 s and 400 s respectively. The blue - white flare at the upper - left of the image is scattered light from a bright star just outside the field of view. The field of view is about 3.3 by 1.7 arcminutes

Centre de la nebula de la Lagoon (M8) dans le Sagittarius - In the heart of the Lagoon Nebula - Centre de la nebula de la Lagoon (M8) vue par le telescope Hubble (HST). This close - up shot of the centre of the Lagoon Nebula (Messier 8) clearly shows the delicate structures formed when the powerful radiation of young stars interacts with the hydrogen cloud they formed from. This image was created from exposures taken with the Wide Field Channel of the Advanced Camera for Surveys on Hubble. Light from glowing hydrogen (through the F658N filter) is coloured red. Light from ionised nitrogen (through the F660N filter) is coloured green and light through a yellow filter (F550M) is coloured blue. The exposure times through each filter are 1560 s, 1600 s and 400 s respectively. The blue - white flare at the upper - left of the image is scattered light from a bright star just outside the field of view. The field of view is about 3.3 by 1.7 arcminutes

PIX4619692

Nebula NGC 7635 in Cassiopee - Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A massive star, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Nebula NGC 7635 in Cassiopee - Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A massive star, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

PIX4620681

Nebula NGC 3372 in the Carene - The Carina nebula, NGC 3372 - The Carene nebula is located about 7000 years from the Earth. It is home to many hot stars, including the star Eta Carinae in the centre of the nebula. Image obtained by Siding Spring's 3.9m telescope. The brightest part of the Milky Way, as seen by the unaided eye, lies in the southern constellation Carina. Here there are an unusually large number of young, hot stars. Their radiation is rich in energetic ultraviolet light. Many of these stars were born within the spectacular Carinae nebula, seen here. The nebula is a cloud of glowing gas composed mostly of hydrogen. It excited by ultrviolet light from the embedded stars. This dostictive emission radiation is responsible for the red colour. About a quarter of the nebula is made of helium gas, the second most abundant element in the universe after hydrogen, and all the other chemical elements account for only a few percent of the total mass. The brightest star in the nebula i

Nebula NGC 3372 in the Carene - The Carina nebula, NGC 3372 - The Carene nebula is located about 7000 years from the Earth. It is home to many hot stars, including the star Eta Carinae in the centre of the nebula. Image obtained by Siding Spring's 3.9m telescope. The brightest part of the Milky Way, as seen by the unaided eye, lies in the southern constellation Carina. Here there are an unusually large number of young, hot stars. Their radiation is rich in energetic ultraviolet light. Many of these stars were born within the spectacular Carinae nebula, seen here. The nebula is a cloud of glowing gas composed mostly of hydrogen. It excited by ultrviolet light from the embedded stars. This dostictive emission radiation is responsible for the red colour. About a quarter of the nebula is made of helium gas, the second most abundant element in the universe after hydrogen, and all the other chemical elements account for only a few percent of the total mass. The brightest star in the nebula i

PIX4618887

The Gamma ray sky - The Gamma ray sky - Map of the whole sky seen in gamma rays by the Fermi Gamma-Ray Space Telescope (FGST) satellite from August 4 to October 30, 2008. All-sky image seen in gamma ray showing the glowing gas of the Milky Way, blinking pulsars, and galaxies billions of light-years away. The all-sky image released today shows us how the cosmos would look if our eyes could detect radiation 150 million times more energetic than visible light. The view merges Large Area Telescope (LAT) on Fermi Gamma-ray Space Telescope (FGST) observations spanning 87 days, from August 4 to October 30, 2008. FGST has been launched on June 11 2008

The Gamma ray sky - The Gamma ray sky - Map of the whole sky seen in gamma rays by the Fermi Gamma-Ray Space Telescope (FGST) satellite from August 4 to October 30, 2008. All-sky image seen in gamma ray showing the glowing gas of the Milky Way, blinking pulsars, and galaxies billions of light-years away. The all-sky image released today shows us how the cosmos would look if our eyes could detect radiation 150 million times more energetic than visible light. The view merges Large Area Telescope (LAT) on Fermi Gamma-ray Space Telescope (FGST) observations spanning 87 days, from August 4 to October 30, 2008. FGST has been launched on June 11 2008

PIX4638001

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 52 million years away - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source of the constellation, it is also called Virgo A. NGC 4486 (M87) is the largest and brightest elliptical galaxy within the northern Virgo Cluster at about 52 million light years from Earth. The galaxy also called Virgo A contains a notable active galactic nucleus that is a strong source of multiwavelength radiation, particularly radio waves. In 1918 astronomer Heber Curtis discovered a jet of matter coming from M87 which extends at least 5000 light - years from the nucleus of M87 and is made up of matter ejected from the galaxy, most likely by a supermassive black hole

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 52 million years away - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source of the constellation, it is also called Virgo A. NGC 4486 (M87) is the largest and brightest elliptical galaxy within the northern Virgo Cluster at about 52 million light years from Earth. The galaxy also called Virgo A contains a notable active galactic nucleus that is a strong source of multiwavelength radiation, particularly radio waves. In 1918 astronomer Heber Curtis discovered a jet of matter coming from M87 which extends at least 5000 light - years from the nucleus of M87 and is made up of matter ejected from the galaxy, most likely by a supermassive black hole

R. Gendler

PIX4611406

Centre de la nebula Omega (M17) by HST - Center of the Omega Nebula, a hotbed of newly born stars wrapped in colorful blankets of glowing gas and cradled in an enormous cold, dark hydrogen cloud. This picture was taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope. The region of the nebula shown in this photograph is about 3,500 times wider than our solar system. The area represents about 60 percent of the total view captured by ACS. The nebula, also called M17 and the Swan Nebula, resides 5,500 light - years away in the constellation Sagittarius. Like its famous cousin in Orion, the Swan Nebula is illuminated by ultraviolet radiation from young, massive stars, located just beyond the upper right corner of the image. Each star is about six times hotter and 30 times more massive than the Sun. The powerful radiation from these stars evaporates and erodes the dense cloud of cold gas within which the stars formed. The blistered walls of the hollow cloud shin

Centre de la nebula Omega (M17) by HST - Center of the Omega Nebula, a hotbed of newly born stars wrapped in colorful blankets of glowing gas and cradled in an enormous cold, dark hydrogen cloud. This picture was taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope. The region of the nebula shown in this photograph is about 3,500 times wider than our solar system. The area represents about 60 percent of the total view captured by ACS. The nebula, also called M17 and the Swan Nebula, resides 5,500 light - years away in the constellation Sagittarius. Like its famous cousin in Orion, the Swan Nebula is illuminated by ultraviolet radiation from young, massive stars, located just beyond the upper right corner of the image. Each star is about six times hotter and 30 times more massive than the Sun. The powerful radiation from these stars evaporates and erodes the dense cloud of cold gas within which the stars formed. The blistered walls of the hollow cloud shin

PIX4620159

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in light by the space telescope Hubble. The image shows a column of gases and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in visible light, the image shows the tip of the three - light - year - long pillar, bathed in the glow of light from hot, massive stars off the top of the image. Scorching radiation and fast winds (streams of charged particles) from these stars are sculpting the pillar and causing new stars to form within it. Streamers of gas and dust can be seen flowing off the top of the structure. Hubble's Wi

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in light by the space telescope Hubble. The image shows a column of gases and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in visible light, the image shows the tip of the three - light - year - long pillar, bathed in the glow of light from hot, massive stars off the top of the image. Scorching radiation and fast winds (streams of charged particles) from these stars are sculpting the pillar and causing new stars to form within it. Streamers of gas and dust can be seen flowing off the top of the structure. Hubble's Wi

PIX4619089

Nebula RCW38 in the constellation of sails seen in infrared by the VLT - Three - colour composite image of RCW38, obtained through three near - infrared filters. This is a region in the Milky Way at a distance of about 5,000 light years, where stars which have recently formed in clouds of gas and dust are still heavily obscured and cannot be observed in the visible part of the spectrum. Contrarily, as this image shows, they are very well seen at infrared wavelengths where the obscuration is substantially lower. The diffuse radiation is a mixture of starlight scattered by the dust and gas in the area, and atomic and molecular hydrogen line emission. RCW 38 is at a distance of ~ 1.7 kpc (~ 5500 light years) from us, near the famous Vela supernova remnant and the Gum nebul

Nebula RCW38 in the constellation of sails seen in infrared by the VLT - Three - colour composite image of RCW38, obtained through three near - infrared filters. This is a region in the Milky Way at a distance of about 5,000 light years, where stars which have recently formed in clouds of gas and dust are still heavily obscured and cannot be observed in the visible part of the spectrum. Contrarily, as this image shows, they are very well seen at infrared wavelengths where the obscuration is substantially lower. The diffuse radiation is a mixture of starlight scattered by the dust and gas in the area, and atomic and molecular hydrogen line emission. RCW 38 is at a distance of ~ 1.7 kpc (~ 5500 light years) from us, near the famous Vela supernova remnant and the Gum nebul

PIX4621658

Nebula NGC 7635 in Cassiopee - The Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A star 40 times more massive than our Sun, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Nebula NGC 7635 in Cassiopee - The Bubble Nebula (NGC 7635) in Cassiopeia - This nebula is located about 7100 years - light from Earth. A star 40 times more massive than our Sun, called Wolf - Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. The Bubble Nebula in Cassiopeia is one of the most dramatic emission nebulae visible in the northern hemisphere. Lying at a distance of about 7,000 light - years away and spanning six light - years in diameter, NGC 7635 is quite bright with a magnitude of 7.0. The star in the middle of the bubble, BD+602522, is responsible for this stunning site, for this very hot star emits so much UV radiation that it is able to also heat and excite the surrounding dust and gas, thus emitting its own radiation. It is a Wolf - Rayet star, a very luminous star and also very short - lived. This Wolf - Rayet star is 40 times as massive than our sun

Adam Block

PIX4620709

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in visible light (top) and infrared (bottom) by the Hubble space telescope. The top image shows a column of gas and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. In the infrared image, the dust clouds radiate little, the nascent star responsible for these jets appears. NGC 3372 is located about 7000 light years away from Earth. Images obtained in July 2009. The pictures demonstrate one example of the broad wavelength range of the new Wide Field Camera 3 (WFC3) aboard the Hubble telescope, extending from ultraviolet to visible to infrared light. Composed of gas and dust, the pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. The pair of images shows that astronomers are given a much more complete vie

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in visible light (top) and infrared (bottom) by the Hubble space telescope. The top image shows a column of gas and dust eroded by ultraviolet radiation emitted by young stars. Jets are also visible, showing the presence of a nascent star. In the infrared image, the dust clouds radiate little, the nascent star responsible for these jets appears. NGC 3372 is located about 7000 light years away from Earth. Images obtained in July 2009. The pictures demonstrate one example of the broad wavelength range of the new Wide Field Camera 3 (WFC3) aboard the Hubble telescope, extending from ultraviolet to visible to infrared light. Composed of gas and dust, the pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. The pair of images shows that astronomers are given a much more complete vie

PIX4619072

Center of the Omega Nebula (M17) in the sagittarius seen by HST - Center of the Omega Nebula, a hotbed of newly born stars wrapped in colorful blankets of glowing gas and cradled in an enormous cold, dark hydrogen cloud. This picture was taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope. The region of the nebula shown in this photograph is about 3,500 times wider than our solar system. The area represents about 60 percent of the total view captured by ACS. The nebula, also called M17 and the Swan Nebula, resides 5,500 light - years away in the constellation Sagittarius. Like its famous cousin in Orion, the Swan Nebula is illuminated by ultraviolet radiation from young, massive stars, located just beyond the upper right corner of the image. Each star is about six times hotter and 30 times more massive than the Sun. The powerful radiation from these stars evaporates and erodes the dense cloud of cold gas within which the stars formed. The blistered walls

Center of the Omega Nebula (M17) in the sagittarius seen by HST - Center of the Omega Nebula, a hotbed of newly born stars wrapped in colorful blankets of glowing gas and cradled in an enormous cold, dark hydrogen cloud. This picture was taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope. The region of the nebula shown in this photograph is about 3,500 times wider than our solar system. The area represents about 60 percent of the total view captured by ACS. The nebula, also called M17 and the Swan Nebula, resides 5,500 light - years away in the constellation Sagittarius. Like its famous cousin in Orion, the Swan Nebula is illuminated by ultraviolet radiation from young, massive stars, located just beyond the upper right corner of the image. Each star is about six times hotter and 30 times more massive than the Sun. The powerful radiation from these stars evaporates and erodes the dense cloud of cold gas within which the stars formed. The blistered walls

PIX4620193

Nebula by reflexion in NGC 6188 in the Altar - Reflection nebula in NGC 6188 in Ara - Nebula NGC 6188 is located about 4000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The fainter stars here are cool, like those that orbit the inner 'bulge' of the Milky Way and appear slightly yellow on colour pictures. The foreground patch of dust that crosses this photograph must be illuminated by energetic radiation from stars that are much hotter than those in the background because hydrogen, which is associated with the dust, has been excited into a vivid red fluorescence by absorbing the invisible ultraviolet light. Here and there a few bright but cooler stars are caught up in the outskirts of dust clouds and some of their light is scattered to produce the blue reflection nebulae

Nebula by reflexion in NGC 6188 in the Altar - Reflection nebula in NGC 6188 in Ara - Nebula NGC 6188 is located about 4000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The fainter stars here are cool, like those that orbit the inner 'bulge' of the Milky Way and appear slightly yellow on colour pictures. The foreground patch of dust that crosses this photograph must be illuminated by energetic radiation from stars that are much hotter than those in the background because hydrogen, which is associated with the dust, has been excited into a vivid red fluorescence by absorbing the invisible ultraviolet light. Here and there a few bright but cooler stars are caught up in the outskirts of dust clouds and some of their light is scattered to produce the blue reflection nebulae

PIX4619295

Vue d'artiste de l'terre et un flux de rayes gamma - Gamma rays emitted by a magnetar reach the Earth - Vue d'artiste de l'emission gamma emise par un magnetar le 27 décembre 2004. The neutron star (SGR1806 - 20) located 50 000 years of light in Sagittarius disturbed the ionosphere and interrupted radio communications. Artwork of gamma rays emitted by a magnetar reaching the Earth. On December 27, 2004, the radiation from an explosion on the surface of the neutron star SGR1806 - 20, located 50 000 light years away, reached our ionosphere creating radio communications problems

Vue d'artiste de l'terre et un flux de rayes gamma - Gamma rays emitted by a magnetar reach the Earth - Vue d'artiste de l'emission gamma emise par un magnetar le 27 décembre 2004. The neutron star (SGR1806 - 20) located 50 000 years of light in Sagittarius disturbed the ionosphere and interrupted radio communications. Artwork of gamma rays emitted by a magnetar reaching the Earth. On December 27, 2004, the radiation from an explosion on the surface of the neutron star SGR1806 - 20, located 50 000 light years away, reached our ionosphere creating radio communications problems

L. Bret

PIX4572832

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

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

PIX4619680

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. 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. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some younger, blue stars can be seen at the edges of the dust cloud. One of the nearer galaxies, 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. 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. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some younger, blue stars can be seen at the edges of the dust cloud. One of the nearer galaxies, 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

PIX4612201

Nebula by reflexion in NGC 6188 in the Altar - Reflection nebula in NGC 6188 in Ara - Nebula NGC 6188 is located about 4000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The fainter stars here are cool, like those that orbit the inner 'bulge' of the Milky Way and appear slightly yellow on colour pictures. The foreground patch of dust that crosses this photograph must be illuminated by energetic radiation from stars that are much hotter than those in the background because hydrogen, which is associated with the dust, has been excited into a vivid red fluorescence by absorbing the invisible ultraviolet light. Here and there a few bright but cooler stars are caught up in the outskirts of dust clouds and some of their light is scattered to produce the blue reflection nebulae

Nebula by reflexion in NGC 6188 in the Altar - Reflection nebula in NGC 6188 in Ara - Nebula NGC 6188 is located about 4000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The fainter stars here are cool, like those that orbit the inner 'bulge' of the Milky Way and appear slightly yellow on colour pictures. The foreground patch of dust that crosses this photograph must be illuminated by energetic radiation from stars that are much hotter than those in the background because hydrogen, which is associated with the dust, has been excited into a vivid red fluorescence by absorbing the invisible ultraviolet light. Here and there a few bright but cooler stars are caught up in the outskirts of dust clouds and some of their light is scattered to produce the blue reflection nebulae

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Detail of the nebula NGC 3324 in the Carene - Detail of nebula NGC 3324 in Carina - Detail of the nebula NGC 3324 obtained by the Hubble space telescope. This nebula is located in the southern hemisphere, close to the great Carene nebula about 7200 light years from Earth. The image obtained by the Hubble Space Telescope shows a gas wall at the edge of a cavite created by the radiation and stellar winds blown by young warm stars. Hubble space telescope image shows the edge of a giant gaseous cavity within the star - forming region called NGC 3324. The glowing nebula has been carved out by intense ultraviolet radiation and stellar winds from several hot, young stars. A cluster of extremely massive stars, located well outside this image in the center of the nebula, is responsible for the ionization of the nebula and excavation of the cavity. The image also reveals dramatic dark towers of cool gas and dust that rise above the glowing wall of gas. The dense gas at the top resists the bliste

Detail of the nebula NGC 3324 in the Carene - Detail of nebula NGC 3324 in Carina - Detail of the nebula NGC 3324 obtained by the Hubble space telescope. This nebula is located in the southern hemisphere, close to the great Carene nebula about 7200 light years from Earth. The image obtained by the Hubble Space Telescope shows a gas wall at the edge of a cavite created by the radiation and stellar winds blown by young warm stars. Hubble space telescope image shows the edge of a giant gaseous cavity within the star - forming region called NGC 3324. The glowing nebula has been carved out by intense ultraviolet radiation and stellar winds from several hot, young stars. A cluster of extremely massive stars, located well outside this image in the center of the nebula, is responsible for the ionization of the nebula and excavation of the cavity. The image also reveals dramatic dark towers of cool gas and dust that rise above the glowing wall of gas. The dense gas at the top resists the bliste

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Nebula N81 in the Small Magellan Cloud - Celestial Maternity Ward N81 in the Small Magellanic Cloud A NASA Hubble Space Telescope “” family portrait””” of young, ultra - bright stars nested in their embryonic cloud of glowing gases. The celestial maternity ward, called N81, is located 200,000 light - years away in the Small Magellanic Cloud (SMC), a small irregular satellite galaxy of our Milky Way. Hubble's exquisite resolution allows astronomers to pinpoint 50 separate stars tightly packed in the nebula's core within a 10 light - year diameter - slightly more than twice the distance between earth and the nearest star to our sun. The closest pair of stars is only 1/3 of a light - year apart (0.3 arcseconds in the sky). This furious rate of mass loss from these super - hot stars is evident in the Hubble picture that reveals dramatic shapes sculpted in the nebula's wall of glowing gases by violent stellar winds and shock waves. A pair of bright stars in the center of the nebula is pouri

Nebula N81 in the Small Magellan Cloud - Celestial Maternity Ward N81 in the Small Magellanic Cloud A NASA Hubble Space Telescope “” family portrait””” of young, ultra - bright stars nested in their embryonic cloud of glowing gases. The celestial maternity ward, called N81, is located 200,000 light - years away in the Small Magellanic Cloud (SMC), a small irregular satellite galaxy of our Milky Way. Hubble's exquisite resolution allows astronomers to pinpoint 50 separate stars tightly packed in the nebula's core within a 10 light - year diameter - slightly more than twice the distance between earth and the nearest star to our sun. The closest pair of stars is only 1/3 of a light - year apart (0.3 arcseconds in the sky). This furious rate of mass loss from these super - hot stars is evident in the Hubble picture that reveals dramatic shapes sculpted in the nebula's wall of glowing gases by violent stellar winds and shock waves. A pair of bright stars in the center of the nebula is pouri

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Elliptical galaxy Centaurus A (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128). Wide field - The NGC 5128 galaxy is about 13 million light years away from Earth. Image obtained from the 1.2m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy, set in a rich part of the southern sky. not only are there plenty of stars here to catch the eye, but the region is rich in galaxies as well. One of the nearer galaxies, at 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

Elliptical galaxy Centaurus A (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128). Wide field - The NGC 5128 galaxy is about 13 million light years away from Earth. Image obtained from the 1.2m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy, set in a rich part of the southern sky. not only are there plenty of stars here to catch the eye, but the region is rich in galaxies as well. One of the nearer galaxies, at 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

PIX4612296

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - M77 (NGC 1068). This active galaxy is the typical example of a Seyfert II galaxy. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained by Siding Spring's 3.9m telescope. M77 is a Seyfert galaxy, a class of galaxy named for Karl Seyfert who first identified galaxies with emission lines superimposed on the normal radiation from their nuclei in 1943. Such galaxies are a subset of an ill - defined species generally known as 'active galaxies' whose nuclei emit radio - and X - radiation as well as visible light. The least active of the active galaxies are the Seyferts, the most active are the quasars which are mostly so distant that they can only be distinguished from stars by their spectrum. <BR>The common feature of these galaxy types is a small, very bright nucleus thought to host

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - M77 (NGC 1068). This active galaxy is the typical example of a Seyfert II galaxy. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained by Siding Spring's 3.9m telescope. M77 is a Seyfert galaxy, a class of galaxy named for Karl Seyfert who first identified galaxies with emission lines superimposed on the normal radiation from their nuclei in 1943. Such galaxies are a subset of an ill - defined species generally known as 'active galaxies' whose nuclei emit radio - and X - radiation as well as visible light. The least active of the active galaxies are the Seyferts, the most active are the quasars which are mostly so distant that they can only be distinguished from stars by their spectrum. <BR>The common feature of these galaxy types is a small, very bright nucleus thought to host

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Cloud IC 349 illuminates by the star Merope - Barnard's Merope Nebula (IC 349) - IC 349 is an interstellar cloud illuminated by the star Merope (off-field) of the Pleiades cluster. Image obtained by the Hubble Space Telescope. This ghostly apparition is actually an interstellar cloud caught in the process of destruction by strong radiation from a nearby hot star. This picture, snapped by the Hubble telescope, shows a cloud illuminated by light from the bright star Merope. Located in the Pleiades star cluster, the cloud is called IC 349 or Barnard's Merope Nebul

Cloud IC 349 illuminates by the star Merope - Barnard's Merope Nebula (IC 349) - IC 349 is an interstellar cloud illuminated by the star Merope (off-field) of the Pleiades cluster. Image obtained by the Hubble Space Telescope. This ghostly apparition is actually an interstellar cloud caught in the process of destruction by strong radiation from a nearby hot star. This picture, snapped by the Hubble telescope, shows a cloud illuminated by light from the bright star Merope. Located in the Pleiades star cluster, the cloud is called IC 349 or Barnard's Merope Nebul

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

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

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Central region of the Tarantula Nebula - The Tarantula Nebula - The Tarantula Nebula (or 30 Dorada) 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 5 images obtained by the Hubble space telescope. Vast Star - Forming Region 30 Doradus Nasa's Hubble Space Telescope has snapped a panoramic portrait of a vast, sculpted landscape of gas and dust where thousands of stars are being born. This fertile star - forming region, called the 30 Doradus Nebula, has a sparkling stellar centerpiece: the most spectacular cluster of massive stars in our cosmic neighborhood of about 25 galaxies. The mosaic picture shows that ultraviolet radiation and high - speed material unleashed by the stars in the cluster, called R136, are weaving a tapestry of creation and destruct

Central region of the Tarantula Nebula - The Tarantula Nebula - The Tarantula Nebula (or 30 Dorada) 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 5 images obtained by the Hubble space telescope. Vast Star - Forming Region 30 Doradus Nasa's Hubble Space Telescope has snapped a panoramic portrait of a vast, sculpted landscape of gas and dust where thousands of stars are being born. This fertile star - forming region, called the 30 Doradus Nebula, has a sparkling stellar centerpiece: the most spectacular cluster of massive stars in our cosmic neighborhood of about 25 galaxies. The mosaic picture shows that ultraviolet radiation and high - speed material unleashed by the stars in the cluster, called R136, are weaving a tapestry of creation and destruct

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Detail of the horse's head nebula by the VLT - Horsehead Nebula, which is situated in the Orion molecular cloud complex. Its official name is Barnard 33 and it is a dust protrusion in the southern region of the dense dust cloud Lynds 1630, on the edge of the HII region IC 434. The distance to the region is about 1400 light - years (430 pc). This beautiful colour image was produced from three images obtained with the multi - mode FORS2 instrument at the second VLT Unit Telescope (KUEYEN) on February 1, 2000. Three predominant colours are seen in the image: red from the hydrogen (H - alpha) emission from the HII region; brown for the foreground obscuring dust; and blue - green for scattered starlight. The blue - green regions of the Horsehead Nebula correspond to regions not shadowed from the light from the stars in the H II region to the top of the picture and scatter stellar radiation towards the observer; these are thus 'mountains' of dust

Detail of the horse's head nebula by the VLT - Horsehead Nebula, which is situated in the Orion molecular cloud complex. Its official name is Barnard 33 and it is a dust protrusion in the southern region of the dense dust cloud Lynds 1630, on the edge of the HII region IC 434. The distance to the region is about 1400 light - years (430 pc). This beautiful colour image was produced from three images obtained with the multi - mode FORS2 instrument at the second VLT Unit Telescope (KUEYEN) on February 1, 2000. Three predominant colours are seen in the image: red from the hydrogen (H - alpha) emission from the HII region; brown for the foreground obscuring dust; and blue - green for scattered starlight. The blue - green regions of the Horsehead Nebula correspond to regions not shadowed from the light from the stars in the H II region to the top of the picture and scatter stellar radiation towards the observer; these are thus 'mountains' of dust

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The Gamma ray sky - The Gamma ray sky - Map of the whole sky seen in gamma rays by the Fermi Gamma-Ray Space Telescope (FGST) satellite from August 4 to October 30, 2008. The strongest sources of gamma radiation are legendeed here. All-sky image seen in gamma ray showing the glowing gas of the Milky Way, blinking pulsars, and galaxies billions of light-years away. The all-sky image released today shows us how the cosmos would look if our eyes could detect radiation 150 million times more energetic than visible light. The view merges Large Area Telescope (LAT) on Fermi Gamma-ray Space Telescope (FGST) observations spanning 87 days, from August 4 to October 30, 2008. The top five sources within our galaxy are: The sun. Now near the minimum of its activity cycle, the sun would not be a particularly notable source except for one thing: It's the only one that moves across the sky. The sun's annual motion against the background sky is a reflection of Earth's orbit around the sun. LSI+61 303.

The Gamma ray sky - The Gamma ray sky - Map of the whole sky seen in gamma rays by the Fermi Gamma-Ray Space Telescope (FGST) satellite from August 4 to October 30, 2008. The strongest sources of gamma radiation are legendeed here. All-sky image seen in gamma ray showing the glowing gas of the Milky Way, blinking pulsars, and galaxies billions of light-years away. The all-sky image released today shows us how the cosmos would look if our eyes could detect radiation 150 million times more energetic than visible light. The view merges Large Area Telescope (LAT) on Fermi Gamma-ray Space Telescope (FGST) observations spanning 87 days, from August 4 to October 30, 2008. The top five sources within our galaxy are: The sun. Now near the minimum of its activity cycle, the sun would not be a particularly notable source except for one thing: It's the only one that moves across the sky. The sun's annual motion against the background sky is a reflection of Earth's orbit around the sun. LSI+61 303.

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Centaurus A elliptical galaxy (NGC 5128) in Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million light years away from Earth in the southern constellation of Centaurus. A broad dark band crosses it in the middle, a probable vestige of a collision with a spiral 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. The green dot visible in the dust strip is a supernova, the supernova 1986g. It appears green because the red filter image that made this trichromy image was only taken a year after the event and the supernova had weakened. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some

Centaurus A elliptical galaxy (NGC 5128) in Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million light years away from Earth in the southern constellation of Centaurus. A broad dark band crosses it in the middle, a probable vestige of a collision with a spiral 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. The green dot visible in the dust strip is a supernova, the supernova 1986g. It appears green because the red filter image that made this trichromy image was only taken a year after the event and the supernova had weakened. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some

PIX4612278

Planetary nebula M 27 (NGC 6853) in the little fox - This excellent image of the Dumbbell Nebula (M27, NGC6853), a planetary nebula in the constellation of Vulpecula, was taken at the 3.5 - meter WIYN telescope using the mini - mosaic imager. The nebula was formed when an evolved, red giant star ejected its outer envelope near the end of its lifetime. The expanding cloud of gas becomes visible once the hot core of the star, visible near the center, is exposed and the high - energy, ultraviolet light from the core ionizes the cloud. This makes the nebula emit mostly a strong emission - line spectrum. This color image was obtained by combining three separate pictures, each one taken through a narrow filter centered at the emission wavelengths of Hydrogen (H alpha, red, 656 nm), doubly ionized Oxygen (OII, green, 501 nm), and neutral Oxygen (OI, blue, 630 nm). It is physically very interesting that neutral gas can survive in a region right next to highly ionized gas, and this image shows

Planetary nebula M 27 (NGC 6853) in the little fox - This excellent image of the Dumbbell Nebula (M27, NGC6853), a planetary nebula in the constellation of Vulpecula, was taken at the 3.5 - meter WIYN telescope using the mini - mosaic imager. The nebula was formed when an evolved, red giant star ejected its outer envelope near the end of its lifetime. The expanding cloud of gas becomes visible once the hot core of the star, visible near the center, is exposed and the high - energy, ultraviolet light from the core ionizes the cloud. This makes the nebula emit mostly a strong emission - line spectrum. This color image was obtained by combining three separate pictures, each one taken through a narrow filter centered at the emission wavelengths of Hydrogen (H alpha, red, 656 nm), doubly ionized Oxygen (OII, green, 501 nm), and neutral Oxygen (OI, blue, 630 nm). It is physically very interesting that neutral gas can survive in a region right next to highly ionized gas, and this image shows

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The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has captured a glimpse of a brief stage in the burnout of NGC 7027, a medium - mass star like our sun. THE INFRARED VIEW - - The composite color image of NGC 7027 (on the left) is among the first data of a planetary nebula taken with NICMOS. This picture is actually composed of three separate images taken at different wavelengths. The red color represents cool molecular hydrogen gas, the most abundant gas in the universe. The image reveals the central star, which is difficult to see in images taken with visible light. Surrounding it is an elongated region of gas and dust cast off by the star. This gas (appearing as white) has a temperature of several tens of thousands of degrees Fahrenheit. The object has two “” cones”” of cool molecular hydrogen gas (the red material) glowing in the infrared. The gas has been energized by ultraviolet light from the star - a process known as fluorescence. Most of

The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has captured a glimpse of a brief stage in the burnout of NGC 7027, a medium - mass star like our sun. THE INFRARED VIEW - - The composite color image of NGC 7027 (on the left) is among the first data of a planetary nebula taken with NICMOS. This picture is actually composed of three separate images taken at different wavelengths. The red color represents cool molecular hydrogen gas, the most abundant gas in the universe. The image reveals the central star, which is difficult to see in images taken with visible light. Surrounding it is an elongated region of gas and dust cast off by the star. This gas (appearing as white) has a temperature of several tens of thousands of degrees Fahrenheit. The object has two “” cones”” of cool molecular hydrogen gas (the red material) glowing in the infrared. The gas has been energized by ultraviolet light from the star - a process known as fluorescence. Most of

PIX4623549

Center of the Trifid Nebula (M20) - Center of the Trifid Nebula - The Trifid Nebula (M20) is located between 5000 and 10,000 years - light of the Earth in the constellation of Sagittarius. This image obtained by the Hubble space telescope shows the center of this nebula. A group of bright stars is visible in the center of the image near the dark bands of interstellar dust. These stars are young, blue, massive and extremely hot stars; they are O-type stars and the radiation they emit influence the evolution and structure of the nebula. Trifid Nebula, also known as Messier 20 and NGC 6514, lies within our own Milky Way Galaxy between 5000 and 10 000 light - years from Earth, in the constellation Sagittarius. This image from the Hubble Space Telescope offers a close - up view of the center of the Trifid Nebula, near the intersection of the dust bands, where a group of recently formed, massive, bright stars is easily visible. These stars, which astronomers classify as belonging to the hott

Center of the Trifid Nebula (M20) - Center of the Trifid Nebula - The Trifid Nebula (M20) is located between 5000 and 10,000 years - light of the Earth in the constellation of Sagittarius. This image obtained by the Hubble space telescope shows the center of this nebula. A group of bright stars is visible in the center of the image near the dark bands of interstellar dust. These stars are young, blue, massive and extremely hot stars; they are O-type stars and the radiation they emit influence the evolution and structure of the nebula. Trifid Nebula, also known as Messier 20 and NGC 6514, lies within our own Milky Way Galaxy between 5000 and 10 000 light - years from Earth, in the constellation Sagittarius. This image from the Hubble Space Telescope offers a close - up view of the center of the Trifid Nebula, near the intersection of the dust bands, where a group of recently formed, massive, bright stars is easily visible. These stars, which astronomers classify as belonging to the hott

PIX4619552

Remnants of the Crab Supernova (M1) in the Taurus - This is a mosaic image, one of the largest ever taken by Nasa's Hubble Space Telescope of the Crab Nebula, a six - light - year - wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra - dense core of the exploded star. The Crab Nebula derived its name from its appearance in a dra

Remnants of the Crab Supernova (M1) in the Taurus - This is a mosaic image, one of the largest ever taken by Nasa's Hubble Space Telescope of the Crab Nebula, a six - light - year - wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra - dense core of the exploded star. The Crab Nebula derived its name from its appearance in a dra

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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 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 in August and December 2009. 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. This Hubble Space Telescope image was captured in August 2009 and December 2009 with the Wide Field Camera 3 in both visible and infrared light, which trace the glow of sulfur, hydrogen, and iron

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 in August and December 2009. 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. This Hubble Space Telescope image was captured in August 2009 and December 2009 with the Wide Field Camera 3 in both visible and infrared light, which trace the glow of sulfur, hydrogen, and iron

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Quasars seen by the Hubble Space Telescope - Quasars seen by the Hubble Space Telescope - Gallery of quasars observed in different types of galaxies; left column, quasars in normal galaxies, center in colliding galaxies, right in particular galaxies. Top left: quasar PG 0052+251, has about 1.4 billion years - light. Bottom left: Quasar PHL 909 has about 1.5 billion years - light. High center: quasar IRAS04505 - 2958, has about 3 billion years - light. Low center: quasar PG 1012+008, has about 1.6 billion years - light. High right: quasar 0316 - 346, has about 2.2 billion years - light. Low right: quasar IRAS13218+0552. has about 2 billion years - light. Images obtained by the Hubble Space Telescope in 1996. Quasars reside in a variety of galaxies, from normal to highly disturbed. When seen through ground - based telescopes, these compact, enigmatic light sources resemble stars, yet they are billions of light - years away and several hundred billion times brighter than normal stars. The

Quasars seen by the Hubble Space Telescope - Quasars seen by the Hubble Space Telescope - Gallery of quasars observed in different types of galaxies; left column, quasars in normal galaxies, center in colliding galaxies, right in particular galaxies. Top left: quasar PG 0052+251, has about 1.4 billion years - light. Bottom left: Quasar PHL 909 has about 1.5 billion years - light. High center: quasar IRAS04505 - 2958, has about 3 billion years - light. Low center: quasar PG 1012+008, has about 1.6 billion years - light. High right: quasar 0316 - 346, has about 2.2 billion years - light. Low right: quasar IRAS13218+0552. has about 2 billion years - light. Images obtained by the Hubble Space Telescope in 1996. Quasars reside in a variety of galaxies, from normal to highly disturbed. When seen through ground - based telescopes, these compact, enigmatic light sources resemble stars, yet they are billions of light - years away and several hundred billion times brighter than normal stars. The

PIX4613552

Nebula IC 1396 in Cephee infrared view - 18/12/2003 The large composite image on the left is a product of combining data from the observator's multiband imaging photometer and the infrared array camera. The thermal emission at 24 microns measured by the photometer (red) is combined with near - infrared emission from the camera at 3.6/4.5 microns (blue) and from 5.8/8.0 microns (green). The colors of the diffuse emission and filaments vary, and are a combination of molecular hydrogen (which tends to be green) and polycyclic aromatic hydrocarbon (brown) emissions. Nasa's Spitzer Space Telescope image of a glowing stellar nursery provides a spectacular contrast to the opaque cloud seen in visible light. The Elephant's Trunk Nebula is an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus. Located at a distance of 2,450 light - years, the globule is a condensation of dense gas that is barely surviving the strong ionizing radiation from a nearby massive

Nebula IC 1396 in Cephee infrared view - 18/12/2003 The large composite image on the left is a product of combining data from the observator's multiband imaging photometer and the infrared array camera. The thermal emission at 24 microns measured by the photometer (red) is combined with near - infrared emission from the camera at 3.6/4.5 microns (blue) and from 5.8/8.0 microns (green). The colors of the diffuse emission and filaments vary, and are a combination of molecular hydrogen (which tends to be green) and polycyclic aromatic hydrocarbon (brown) emissions. Nasa's Spitzer Space Telescope image of a glowing stellar nursery provides a spectacular contrast to the opaque cloud seen in visible light. The Elephant's Trunk Nebula is an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus. Located at a distance of 2,450 light - years, the globule is a condensation of dense gas that is barely surviving the strong ionizing radiation from a nearby massive

PIX4622272

Remains of the Crab Supernova (M1) in the Taurus - M1, the Crab Nebula, is a supernova remnant from a star that exploded in July or August of 1054 AD and was witnessed and described by Chinese astronomers as being six times brighter than Venus. The supernova, located in the constellation of Taurus and about 7,000 light years away from the Earth, shined with the light of 400 million suns, was visible in the daytime for almost a month, and remained visible in the evening sky for more than a year. Today, some 900 years later, we see the remains of the exploded star as a cloud of gaseous debris, illuminated by the remnants of the core of the original star, which is now a rapidly spinning neutron star called a pulsar. The colors in the nebula come from two different sources. The red filaments come from typical hydrogen emission such as in emission nebula like M8. The diffuse blue background has a continuous spectrum composed of synchrotron radiation which is emitted by high energy electrons

Remains of the Crab Supernova (M1) in the Taurus - M1, the Crab Nebula, is a supernova remnant from a star that exploded in July or August of 1054 AD and was witnessed and described by Chinese astronomers as being six times brighter than Venus. The supernova, located in the constellation of Taurus and about 7,000 light years away from the Earth, shined with the light of 400 million suns, was visible in the daytime for almost a month, and remained visible in the evening sky for more than a year. Today, some 900 years later, we see the remains of the exploded star as a cloud of gaseous debris, illuminated by the remnants of the core of the original star, which is now a rapidly spinning neutron star called a pulsar. The colors in the nebula come from two different sources. The red filaments come from typical hydrogen emission such as in emission nebula like M8. The diffuse blue background has a continuous spectrum composed of synchrotron radiation which is emitted by high energy electrons

Jerry Lodriguss

PIX4583001

Horsehead Nebula (IC 434) in Orion - Horsehead Nebula (B33) in Orion - The horse's head nebula, Barnard 33, is a dark nebula located in front of the IC 434 emitting nebula about 1500 years - light from Earth in the constellation Orion. At the bottom left, the nebula NGC 2024 with just above the star Alnitak, a supergiant star belonging to the Baudrier of Orion. Towards the center of the image, a reflexion nebula, NGC 2023. This distinctive red emission nebula (IC 434) is the result of radiation from sigma Orionis interacting with the surface of a dusty cloud of gas from which projects the dark shape of the head of a horse. Sigma is the second brightest star in the picture and is at about the same distance from the Sun as the nebula. The brightest star here is zeta Orionis, easily visible to the unaided eye as the easternmost star in the line of three which form Orion's Belt. Alnitak (Zeta Orionis) is a supergiant star with a brightness 35,000 times greater than the Sun. Its mass is 20

Horsehead Nebula (IC 434) in Orion - Horsehead Nebula (B33) in Orion - The horse's head nebula, Barnard 33, is a dark nebula located in front of the IC 434 emitting nebula about 1500 years - light from Earth in the constellation Orion. At the bottom left, the nebula NGC 2024 with just above the star Alnitak, a supergiant star belonging to the Baudrier of Orion. Towards the center of the image, a reflexion nebula, NGC 2023. This distinctive red emission nebula (IC 434) is the result of radiation from sigma Orionis interacting with the surface of a dusty cloud of gas from which projects the dark shape of the head of a horse. Sigma is the second brightest star in the picture and is at about the same distance from the Sun as the nebula. The brightest star here is zeta Orionis, easily visible to the unaided eye as the easternmost star in the line of three which form Orion's Belt. Alnitak (Zeta Orionis) is a supergiant star with a brightness 35,000 times greater than the Sun. Its mass is 20

Stephane Guisard

PIX4622088

The Rosette Nebula in the Unicorn - The Rosette Nebula and NGC 2244 cluster - The Rosette Nebula is a vast cloud of dust and gas located about 5500 years from Earth. Towards the center of the nebula, a cluster of blue stars, NGC 2244 formed less than a million years ago. Image obtained by Siding Spring's 3.9m telescope. In the hollowed - out centre of the Rosette nebula lies NGC 2244, the cluster of young stars recently formed there. The cluster has itself created the cavity, radiation pressure and stellar winds from the stars blowing the gas and dust away from the young cluster. The hottest (and brightest) members of the group are seen as distinctly blue on this photograph, a colour corresponding to a surface temperature around 20,000K which may be compared with the Sun's 5500K. The nebula and its cluster is at a distance of about 4500 light years and shows many streaks and globules of dust, remnants of the cloud from which the stars formed

The Rosette Nebula in the Unicorn - The Rosette Nebula and NGC 2244 cluster - The Rosette Nebula is a vast cloud of dust and gas located about 5500 years from Earth. Towards the center of the nebula, a cluster of blue stars, NGC 2244 formed less than a million years ago. Image obtained by Siding Spring's 3.9m telescope. In the hollowed - out centre of the Rosette nebula lies NGC 2244, the cluster of young stars recently formed there. The cluster has itself created the cavity, radiation pressure and stellar winds from the stars blowing the gas and dust away from the young cluster. The hottest (and brightest) members of the group are seen as distinctly blue on this photograph, a colour corresponding to a surface temperature around 20,000K which may be compared with the Sun's 5500K. The nebula and its cluster is at a distance of about 4500 light years and shows many streaks and globules of dust, remnants of the cloud from which the stars formed

PIX4618457

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

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The Eagle nebula in Serpens - The M16 star cluster is a cluster of young stars distant from 7000 years - light, 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. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associated recent star formation. This example is about 7000 light years distant

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The Eagle nebula in Serpens - The M16 star cluster is a cluster of young stars distant from 7000 years - light, 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. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associated recent star formation. This example is about 7000 light years distant

R. Gendler

PIX4620019

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

PIX4620028

Barree spiral galaxy NGC 3259 in the Great Bear - Barred spiral galaxy NGC 3259 in Ursa Major - The barree spiral galaxy NGC 3259 is located about 110 million years away - light from Earth. This galaxy houses a black hole in its heart as well as large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light - years from Earth. Being a fully - formed active galaxy, its bright central bulge hosts a supermassive black hole, whose huge appetite for matter explains the high luminosity of the galaxy's core: as it devours its surroundings, the black hole emits intense radiation across the whole electromagnetic spectrum, including in visible light. The beautiful spiral arms of the galaxy are not left out either as they contain dark lanes of dust and gas, ideal sp

Barree spiral galaxy NGC 3259 in the Great Bear - Barred spiral galaxy NGC 3259 in Ursa Major - The barree spiral galaxy NGC 3259 is located about 110 million years away - light from Earth. This galaxy houses a black hole in its heart as well as large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light - years from Earth. Being a fully - formed active galaxy, its bright central bulge hosts a supermassive black hole, whose huge appetite for matter explains the high luminosity of the galaxy's core: as it devours its surroundings, the black hole emits intense radiation across the whole electromagnetic spectrum, including in visible light. The beautiful spiral arms of the galaxy are not left out either as they contain dark lanes of dust and gas, ideal sp

PIX4610559

Rosette nebula (NGC 2237) in the Unicorn - The Rosette nebula in Monoceros - The Rosette nebula is a vast cloud of dust and gas. In its center, the cluster of stars NGC 2244. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. The north is at top. Discovered by John Flamsteed about 1690, the Rosetta Nebula is a vast cloud of dust and gas, extending over an area of more than 1 degree across, or about 5 times the area covered by the full moon. Within the nebula, open star cluster NGC 2244 is situated, consisted of the young stars which recently formed from the nebula's material, and the brightest of which make the nebula shine by exciting its atoms to emit radiation. Star formation is still in progress in this vast cloud of interstellar matter. Although various values for its distance occur in the literature, an avarage value of about 5,500 light - years is generally accepted. This image is based on data acquired by the Oschin Telescope at the Mo

Rosette nebula (NGC 2237) in the Unicorn - The Rosette nebula in Monoceros - The Rosette nebula is a vast cloud of dust and gas. In its center, the cluster of stars NGC 2244. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. The north is at top. Discovered by John Flamsteed about 1690, the Rosetta Nebula is a vast cloud of dust and gas, extending over an area of more than 1 degree across, or about 5 times the area covered by the full moon. Within the nebula, open star cluster NGC 2244 is situated, consisted of the young stars which recently formed from the nebula's material, and the brightest of which make the nebula shine by exciting its atoms to emit radiation. Star formation is still in progress in this vast cloud of interstellar matter. Although various values for its distance occur in the literature, an avarage value of about 5,500 light - years is generally accepted. This image is based on data acquired by the Oschin Telescope at the Mo

D. De Martin

PIX4618434

Open cluster NGC 2244 in the nebula of the Rosette - The Rosette Nebula and NGC 2244 cluster - The Rosette nebula is a vast cloud of dust and gas situated about 5500 years away from Earth. Towards the center of the nebula, a cluster of blue stars, NGC 2244 formed less than a million years ago. Image obtained by Siding Spring's 3.9m telescope. In the hollowed - out centre of the Rosette nebula lies NGC 2244, the cluster of young stars recently formed there. The cluster has itself created the cavity, radiation pressure and stellar winds from the stars blowing the gas and dust away from the young cluster. The hottest (and brightest) members of the group are seen as distinctly blue on this photograph, a colour corresponding to a surface temperature around 20,000K which may be compared with the Sun's 5500K. The nebula and its cluster is at a distance of about 4500 light years and shows many streaks and globules of dust, remnants of the cloud from which the stars formed

Open cluster NGC 2244 in the nebula of the Rosette - The Rosette Nebula and NGC 2244 cluster - The Rosette nebula is a vast cloud of dust and gas situated about 5500 years away from Earth. Towards the center of the nebula, a cluster of blue stars, NGC 2244 formed less than a million years ago. Image obtained by Siding Spring's 3.9m telescope. In the hollowed - out centre of the Rosette nebula lies NGC 2244, the cluster of young stars recently formed there. The cluster has itself created the cavity, radiation pressure and stellar winds from the stars blowing the gas and dust away from the young cluster. The hottest (and brightest) members of the group are seen as distinctly blue on this photograph, a colour corresponding to a surface temperature around 20,000K which may be compared with the Sun's 5500K. The nebula and its cluster is at a distance of about 4500 light years and shows many streaks and globules of dust, remnants of the cloud from which the stars formed

PIX4618488

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope provides us with a spectacular image of the bright star - forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger - scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face - on galaxy, lying 45 million light - years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gr

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope provides us with a spectacular image of the bright star - forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger - scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face - on galaxy, lying 45 million light - years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gr

PIX4609655

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

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

PIX4619956

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

Nebula NGC 7635 in Cassiopee - The Bubble Nebula: This nebula is located about 8000 light years from Earth. A star 40 times more massive than our Sun, called Wolf-Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. Image obtained by the space telescope Hubble - The Bubble Nebula, also known as NGC 7635, is an emission nebula located 8 000 light-years away - This complete view of the Bubble Nebula allows us to fully appreciate the almost perfectly symmetrical shell which gives the nebula its name. This shell is the result of a powerful flow of gas - known as a stellar wind - from the bright star visible just to the left of centre in this image. The star, SAO 20575, is between ten and twenty times the mass of the Sun and the pressure created by its stellar wind forces the surrounding interstellar material outwards into this bubble-like form - The giant molecular cloud that surrounds the star - glowing in the star's intense ultraviolet radiation - tries to

Nebula NGC 7635 in Cassiopee - The Bubble Nebula: This nebula is located about 8000 light years from Earth. A star 40 times more massive than our Sun, called Wolf-Rayet, is responsible for the formation of this bubble; it is the star BD+60* 2522. Image obtained by the space telescope Hubble - The Bubble Nebula, also known as NGC 7635, is an emission nebula located 8 000 light-years away - This complete view of the Bubble Nebula allows us to fully appreciate the almost perfectly symmetrical shell which gives the nebula its name. This shell is the result of a powerful flow of gas - known as a stellar wind - from the bright star visible just to the left of centre in this image. The star, SAO 20575, is between ten and twenty times the mass of the Sun and the pressure created by its stellar wind forces the surrounding interstellar material outwards into this bubble-like form - The giant molecular cloud that surrounds the star - glowing in the star's intense ultraviolet radiation - tries to

PIX4620728

Spiral Galaxy M66 in the Lion - Spiral galaxy M66 in Leo - M66 (NGC 3627) is a spiral galaxy located at a distance of about 35 million years - light. M66, with its neighbors M65 and NGC 3628, forms a remarkable triplet of galaxies, called the Lion Triplet or the M66 Group. Image obtained at the VLT in December 2001. NGC 3627, also known as Messier 66, is a beautiful spiral with a well - developed central bulge. It also displays large - scale dust lanes. Many regions of warm hydrogen gas are seen throughout the disc of this galaxy. The latter regions are being ionised by radiation from clusters of newborn stars. Very active star - formation is most likely also occurring in the nuclear regions of NGC 3627.The galaxy forms, together with its neighbours M 65 and NGC 3628, the so - called “Leo Triplet””; they are located at a distance of about 35 million light - years. M 66 is the largest of the three. Its spiral arms appear distorted and displaced above the main plane of the galaxy. The as

Spiral Galaxy M66 in the Lion - Spiral galaxy M66 in Leo - M66 (NGC 3627) is a spiral galaxy located at a distance of about 35 million years - light. M66, with its neighbors M65 and NGC 3628, forms a remarkable triplet of galaxies, called the Lion Triplet or the M66 Group. Image obtained at the VLT in December 2001. NGC 3627, also known as Messier 66, is a beautiful spiral with a well - developed central bulge. It also displays large - scale dust lanes. Many regions of warm hydrogen gas are seen throughout the disc of this galaxy. The latter regions are being ionised by radiation from clusters of newborn stars. Very active star - formation is most likely also occurring in the nuclear regions of NGC 3627.The galaxy forms, together with its neighbours M 65 and NGC 3628, the so - called “Leo Triplet””; they are located at a distance of about 35 million light - years. M 66 is the largest of the three. Its spiral arms appear distorted and displaced above the main plane of the galaxy. The as

PIX4610814

Planetary Nebula Hen - 1357 dans l'Altar/HST - This Wide Field and Planetary Camera 2 image captures the infancy of the Stingray nebula (Hen - 1357), the youngest known planetary nebula. In this image, the bright central star is in the middle of the green ring of gas. Its companion star is diagonally above it at 10 o'clock. A spur of gas (green) is forming a faint bridge to the companion star due to gravitational attraction. The image also shows a ring of gas (green) surrounding the central star, with bubbles of gas to the lower left and upper right of the ring. The wind of material propelled by radiation from the hot central star has created enough pressure to blow open holes in the ends of the bubbles, allowing gas to escape. The red curved lines represent bright gas that is heated by a “” shock””” caused when the central star's wind hits the walls of the bubbles. The nebula is as large as 130 solar systems, but, at its distance of 18,000 light - years, it appears only as big as a di

Planetary Nebula Hen - 1357 dans l'Altar/HST - This Wide Field and Planetary Camera 2 image captures the infancy of the Stingray nebula (Hen - 1357), the youngest known planetary nebula. In this image, the bright central star is in the middle of the green ring of gas. Its companion star is diagonally above it at 10 o'clock. A spur of gas (green) is forming a faint bridge to the companion star due to gravitational attraction. The image also shows a ring of gas (green) surrounding the central star, with bubbles of gas to the lower left and upper right of the ring. The wind of material propelled by radiation from the hot central star has created enough pressure to blow open holes in the ends of the bubbles, allowing gas to escape. The red curved lines represent bright gas that is heated by a “” shock””” caused when the central star's wind hits the walls of the bubbles. The nebula is as large as 130 solar systems, but, at its distance of 18,000 light - years, it appears only as big as a di

PIX4623698

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