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Chart of the Heavens', c 1855

Chart of the Heavens', c 1855

UIS5096261

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

Adam Block

PIX4612404

Star sky and zodiacal light - Starry sky with zodiacal light - The zodiacal light that extends here to the Pleiades comes from the reflection of the Sun's light on the countless interplanetary dust; it draws the plane of the Solar System. Near the tree, an astrophotographer's silouette. Gers - France. The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. One can see it here from the bottom right of the image to beyond the Pleiades cluster near the center of the image. Near the tree, an astrophotographer is watching the night sky. Gers, France

Star sky and zodiacal light - Starry sky with zodiacal light - The zodiacal light that extends here to the Pleiades comes from the reflection of the Sun's light on the countless interplanetary dust; it draws the plane of the Solar System. Near the tree, an astrophotographer's silouette. Gers - France. The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. One can see it here from the bottom right of the image to beyond the Pleiades cluster near the center of the image. Near the tree, an astrophotographer is watching the night sky. Gers, France

PIX4581537

The zodiacal light - The zodiacal light - The zodiacal light during astronomical dusk rises above the western horizon at the time of the spring equinox. It extends to the Pleiades. It comes from the reflection of the Sun's light on the countless interplanetary dust and draws the plane of the Solar System. Gers - France, 18/03/2009. The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. One can see it here from the bottom right of the image to beyond the Pleiades cluster near the center of the image. Gers, France. March 18, 2009

The zodiacal light - The zodiacal light - The zodiacal light during astronomical dusk rises above the western horizon at the time of the spring equinox. It extends to the Pleiades. It comes from the reflection of the Sun's light on the countless interplanetary dust and draws the plane of the Solar System. Gers - France, 18/03/2009. The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. One can see it here from the bottom right of the image to beyond the Pleiades cluster near the center of the image. Gers, France. March 18, 2009

Laurent Laveder

PIX4581560

The Weccacoe Engine Co.'s house and the reception of the United Fire Co. of Baltimore, printed by Peter S. Duval (c.1804-1886), c.1851 (tinted & hand-coloured litho)

The Weccacoe Engine Co.'s house and the reception of the United Fire Co. of Baltimore, printed by Peter S. Duval (c.1804-1886), c.1851 (tinted & hand-coloured litho)

Queen, James Fuller (1824-77) (after)

LCP463819

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the right of M51, is interacting with M51

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the right of M51, is interacting with M51

W. Promper

PIX4612354

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here below M51, is interacting with M51

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here below M51, is interacting with M51

Sebastian Voltmer

PIX4612388

Chart of the Heavens', c 1850

Chart of the Heavens', c 1850

UIS5090381

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

Jim Misti

PIX4612374

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51

R. Jay GaBany

PIX4612462

The Battle of the Glorious First of June, 1794; stern views of the captured French ships 'L' America' and 'La Juste', c.1794 (pen, ink, graphite)

The Battle of the Glorious First of June, 1794; stern views of the captured French ships 'L' America' and 'La Juste', c.1794 (pen, ink, graphite)

Pocock, Nicholas (1741-1821)

MMM7341711

Jupiter - Illustration - Jupiter is surrounded by a system of very dark rings composed of dust removed from some of its satellites. This system consists of a main ring, located between the Metis and Adrastee satellites, then rings very held in the orbits of the Amalthee and Thebe satellites. This is how Jupiter might look from a position in space just beneath the plane of Jupiter's Main ring. Jupiter's Main ring is believed to be composed of dust and debris from meteoroid impacts with Jupiter's tiny innermost satellites Metis and Adrastea. Jupiter hosts two other broader and more diffuse rings (too faint to be rendered here) which are believed to be generated and replenished by meteoroid impacts on the tiny satellites Thebe and Amalthea

Jupiter - Illustration - Jupiter is surrounded by a system of very dark rings composed of dust removed from some of its satellites. This system consists of a main ring, located between the Metis and Adrastee satellites, then rings very held in the orbits of the Amalthee and Thebe satellites. This is how Jupiter might look from a position in space just beneath the plane of Jupiter's Main ring. Jupiter's Main ring is believed to be composed of dust and debris from meteoroid impacts with Jupiter's tiny innermost satellites Metis and Adrastea. Jupiter hosts two other broader and more diffuse rings (too faint to be rendered here) which are believed to be generated and replenished by meteoroid impacts on the tiny satellites Thebe and Amalthea

Walter B Myers

PIX4575296

Cone and Hubble Nebulae in the Unicorn - Cone and Hubble nebulae in Monoceros - The Cone nebula, at the bottom left, is an H II region located about 2600 years - light from Earth. The bright star in the middle left is S Monocerotis, a star of magnitude 4.7. Lower right, the Hubble nebula, overexposed. This large area of emission nebulosity and patch of blue reflection nebulosity also contains the Cone Nebula, a dark nebula at the lower right corner of the red nebulae. At the bottom right of the frame is NGC 2261, Hubble's Variable Nebula, in this image looking like an overexposed mis - shaped star because of the extreme processing needed to bring out the faint nebulosity in the Cone Nebula

Cone and Hubble Nebulae in the Unicorn - Cone and Hubble nebulae in Monoceros - The Cone nebula, at the bottom left, is an H II region located about 2600 years - light from Earth. The bright star in the middle left is S Monocerotis, a star of magnitude 4.7. Lower right, the Hubble nebula, overexposed. This large area of emission nebulosity and patch of blue reflection nebulosity also contains the Cone Nebula, a dark nebula at the lower right corner of the red nebulae. At the bottom right of the frame is NGC 2261, Hubble's Variable Nebula, in this image looking like an overexposed mis - shaped star because of the extreme processing needed to bring out the faint nebulosity in the Cone Nebula

Jerry Lodriguss

PIX4618584

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

S. Numazawa

PIX4568802

Nebulae NGC 1973 - 1975 - 1977 in Orion - The reflection nebulae NGC 1973 - 75 - 77 in Orion - Reflection nebulae located just north of the Great Orion Nebula. This group of nebulous stars is just half a degree north of the much brighter Orion Nebula and has largely been ignored because of it. The group of stars here appear as a single star to the unaided eye, the northernmost 'star' in the sword of Orion. Most of the blue nebulosity is starlight scattered by dust, while some of the stars are sufficiently hot to excite the wisps of hydrogen that linger here and create a distinctive red glow. To the south of the nebula (at the bottom of the picture) faint traces of the yellow reflected light of the Orion nebula can just be detected

Nebulae NGC 1973 - 1975 - 1977 in Orion - The reflection nebulae NGC 1973 - 75 - 77 in Orion - Reflection nebulae located just north of the Great Orion Nebula. This group of nebulous stars is just half a degree north of the much brighter Orion Nebula and has largely been ignored because of it. The group of stars here appear as a single star to the unaided eye, the northernmost 'star' in the sword of Orion. Most of the blue nebulosity is starlight scattered by dust, while some of the stars are sufficiently hot to excite the wisps of hydrogen that linger here and create a distinctive red glow. To the south of the nebula (at the bottom of the picture) faint traces of the yellow reflected light of the Orion nebula can just be detected

PIX4618046

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Jerry Lodriguss

PIX4568700

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

S. Numazawa

PIX4568812

Artist's view of the solar system - Solar system artwork - Artist's view of the solar system. Planets are represented in order of proximity to the sun. From left to right: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Other dwarf planets are not represented. The planets are shown in the correct order of distance from the Sun, the correct relative sizes, and the correct relative orbital distances. The sizes of the bodies are greatly exaggerated relative to the orbital distances. The faint rings of Jupiter, Uranus, and Neptune are not shown. Eris, Haumea, and Makemake do not appear in the illustration owing to their highly tilted orbits. The dwarf planet Ceres is not shown separately; it resides in the asteroid belt between Mars and Jupiter

Artist's view of the solar system - Solar system artwork - Artist's view of the solar system. Planets are represented in order of proximity to the sun. From left to right: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Other dwarf planets are not represented. The planets are shown in the correct order of distance from the Sun, the correct relative sizes, and the correct relative orbital distances. The sizes of the bodies are greatly exaggerated relative to the orbital distances. The faint rings of Jupiter, Uranus, and Neptune are not shown. Eris, Haumea, and Makemake do not appear in the illustration owing to their highly tilted orbits. The dwarf planet Ceres is not shown separately; it resides in the asteroid belt between Mars and Jupiter

PIX4630249

Recto: Designs for boats, and other machinery, c.1485 (leadpoint, pen & ink on paper)

Recto: Designs for boats, and other machinery, c.1485 (leadpoint, pen & ink on paper)

Vinci, Leonardo da (1452-1519)

ROC5890927

Spiral Galaxy M51 in Hunting Dogs - Galaxy Spiral M51 - The spiral galaxy M51 (NGC 5194) is located about 37 million years away - light from Earth. Image made with an amateur instrument, a 130 mm bezel. M51 is a wonderful bright face - on spiral galaxy located about 37 million light years away from us. It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the right of M51, seems to be interacting with M51. NGC 5195 shines at 9.6 magnitude and is about 5 arc minutes in diameter

Spiral Galaxy M51 in Hunting Dogs - Galaxy Spiral M51 - The spiral galaxy M51 (NGC 5194) is located about 37 million years away - light from Earth. Image made with an amateur instrument, a 130 mm bezel. M51 is a wonderful bright face - on spiral galaxy located about 37 million light years away from us. It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the right of M51, seems to be interacting with M51. NGC 5195 shines at 9.6 magnitude and is about 5 arc minutes in diameter

Jerry Lodriguss

PIX4612294

Open Cluster of Pleiades - Pleiades open cluster - The star cluster of Pleiades contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Open Cluster of Pleiades - Pleiades open cluster - The star cluster of Pleiades contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

S. Numazawa

PIX4568695

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

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

PIX4594009

Comete Lulin et Saturn - Comet Lulin (C2007/N3) and Saturn - View of Comete Lulin (C/2007 N3), February 23, 2009. The top right is the planet Saturn. The bright star underneath is Sigma Leonis. Comet Lulin (C2007/N3) at approximately 6th magnitude, passes just 2 degrees away from Saturn (upper right), shining brilliantly at magnitude 0.6. The spikes on Saturn are diffraction effects from the aperture blades in the camera lens. Lulin's bright anti - tail points to the upper left, and it's faint blue ion tail points to the lower right. North is to the right in this image. Sigma Leonis, a 4th magnitude star, is the other bright star in the frame, below and to the left of Saturn

Comete Lulin et Saturn - Comet Lulin (C2007/N3) and Saturn - View of Comete Lulin (C/2007 N3), February 23, 2009. The top right is the planet Saturn. The bright star underneath is Sigma Leonis. Comet Lulin (C2007/N3) at approximately 6th magnitude, passes just 2 degrees away from Saturn (upper right), shining brilliantly at magnitude 0.6. The spikes on Saturn are diffraction effects from the aperture blades in the camera lens. Lulin's bright anti - tail points to the upper left, and it's faint blue ion tail points to the lower right. North is to the right in this image. Sigma Leonis, a 4th magnitude star, is the other bright star in the frame, below and to the left of Saturn

Jerry Lodriguss

PIX4571111

Centaur Omega globular cluster - The globular cluster Omega Centauri, NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. Image obtained by the VST (VLT Survey Telescope) in Chile. The second released VST (VLT Survey Telescope) image may be the best portrait of the globular star cluster Omega Centauri ever made. Omega Centauri, in the constellation of Centaurus (The Centaur), is the largest globular cluster in the sky, but the very wide field of view of VST and its powerful camera Omegaam can include even the faint outer regions of this spectacular object. This view includes about 300,000 stars

Centaur Omega globular cluster - The globular cluster Omega Centauri, NGC 5139 - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. Image obtained by the VST (VLT Survey Telescope) in Chile. The second released VST (VLT Survey Telescope) image may be the best portrait of the globular star cluster Omega Centauri ever made. Omega Centauri, in the constellation of Centaurus (The Centaur), is the largest globular cluster in the sky, but the very wide field of view of VST and its powerful camera Omegaam can include even the faint outer regions of this spectacular object. This view includes about 300,000 stars

PIX4564449

Gamma Ray Burst - Artist's impression of a dark gamma-ray burst: Artist's view of a gamma burst, a powerful and brief emission of gamma rays whose origin would be linked either to the collision of two neutron stars or to the death of a hypermassive star. - This artist's impression shows a dark gamma-ray burst in a star forming region. Gamma-ray bursts are among the most energetic events in the Universe, but some appear curiously faint in visible light. The biggest study of these dark gamma-ray bursts to date has found that these gigantic explosions, while puzzling, don't require exotic explanations. Their faintness is now fully explained by a combination of causes with the most important being the presence of dust between the Earth and the explosion

Gamma Ray Burst - Artist's impression of a dark gamma-ray burst: Artist's view of a gamma burst, a powerful and brief emission of gamma rays whose origin would be linked either to the collision of two neutron stars or to the death of a hypermassive star. - This artist's impression shows a dark gamma-ray burst in a star forming region. Gamma-ray bursts are among the most energetic events in the Universe, but some appear curiously faint in visible light. The biggest study of these dark gamma-ray bursts to date has found that these gigantic explosions, while puzzling, don't require exotic explanations. Their faintness is now fully explained by a combination of causes with the most important being the presence of dust between the Earth and the explosion

PIX4626505

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

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

PIX4594003

Remains of supernova located about 1400 light years ago in the constellation Swan. The supernova would have exploded less than 10,000 years ago. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed - The Veil Nebula, also known as the Cygnus Loop, is a large supernova remnant, relatively faint supernova remnant in the constellation Cygnus. The source supernova exploded some 5000 to 8000 years ago. The distance to the nebula is not precisely known, with estimates ranging from 1400 to 2600 light years. It was discovered on 1784 September 5 by William Herschel. This image is based on data acquired by the Oschin Telescope at the Mount Palomar Observatory.: Les laces du Swan - The Veil nebula

Remains of supernova located about 1400 light years ago in the constellation Swan. The supernova would have exploded less than 10,000 years ago. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed - The Veil Nebula, also known as the Cygnus Loop, is a large supernova remnant, relatively faint supernova remnant in the constellation Cygnus. The source supernova exploded some 5000 to 8000 years ago. The distance to the nebula is not precisely known, with estimates ranging from 1400 to 2600 light years. It was discovered on 1784 September 5 by William Herschel. This image is based on data acquired by the Oschin Telescope at the Mount Palomar Observatory.: Les laces du Swan - The Veil nebula

D. De Martin

PIX4626477

Fireworks of star formation light up a galaxy , 1 June 2000

Fireworks of star formation light up a galaxy , 1 June 2000

UIS5093490

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

PIX4589942

Satellites, Scientific, International Photomultiplier tube, c 1986

Satellites, Scientific, International Photomultiplier tube, c 1986

UIS5065206

Galaxies NGC 5078 and IC 879 in Hydra - Galaxies NGC 5078 and IC 879 in Hydra - NGC 5078 is a spiral galaxy located about 95 million years ago - light. A small galaxy, IC 879, on its left, is probably interacting with it. Image obtained with a 35 cm telescope, 6 hours of poses. NGC 5078 is a lenticular (lens - shaped) galaxy crossed by a distinct dusty band which is seen against the bright background of the galaxy itself. The dust lane is warped and broadened, probably by interaction with the faint companion galaxy IC 879, which is itself distorted into an 'S' shape by the interaction. The galaxies are about 95 million light years distant. Image taken with 14.5”” RCOS telescope, 6 Hours of exposure

Galaxies NGC 5078 and IC 879 in Hydra - Galaxies NGC 5078 and IC 879 in Hydra - NGC 5078 is a spiral galaxy located about 95 million years ago - light. A small galaxy, IC 879, on its left, is probably interacting with it. Image obtained with a 35 cm telescope, 6 hours of poses. NGC 5078 is a lenticular (lens - shaped) galaxy crossed by a distinct dusty band which is seen against the bright background of the galaxy itself. The dust lane is warped and broadened, probably by interaction with the faint companion galaxy IC 879, which is itself distorted into an 'S' shape by the interaction. The galaxies are about 95 million light years distant. Image taken with 14.5”” RCOS telescope, 6 Hours of exposure

R. Gendler

PIX4612142

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Image obtained with an 80 cm telescope in September 2011. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51. The image was taken with a 32 - inch telescope in september 2011

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Image obtained with an 80 cm telescope in September 2011. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). It was one of the first discoveries made by Charles Messier in 1773, and it was the first galaxy where spiral structure was observed, by Lord Rosse in 1845. A faint companion galaxy, NGC 5195, seen here to the left of M51, is interacting with M51. The image was taken with a 32 - inch telescope in september 2011

Adam Block

PIX4612421

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

PIX4589974

Saturn en jour vue par Cassini - Backlit Saturn seen by Cassini - Mosaic of 141 photos obtained by the Cassini probe on 19 July 2013 at a distance of 1.2 million km from the planet. The Cassini probe was then in the shadow of the Planet Saturn; this portrait of the Giant Planet highlights its ring system and seven of its satellites appear in the image. The planets Mars, Venus and Earth are also visible. On July 19, 2013, Nasa's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings - and, in the background, our home planet, Earth. With both Cassini's wide-angle and narrow-angle cameras aimed at Saturn, Cassini was able to capture 323 images in just over four hours. This final mosaic uses 141 of those wide-angle images. Images taken using the red, green and blue spectral filters of the wide-angle camera were combined and mosaicked together to create this natural-color view. This image spans about 404,880 miles (651,591 kilomet

Saturn en jour vue par Cassini - Backlit Saturn seen by Cassini - Mosaic of 141 photos obtained by the Cassini probe on 19 July 2013 at a distance of 1.2 million km from the planet. The Cassini probe was then in the shadow of the Planet Saturn; this portrait of the Giant Planet highlights its ring system and seven of its satellites appear in the image. The planets Mars, Venus and Earth are also visible. On July 19, 2013, Nasa's Cassini spacecraft slipped into Saturn's shadow and turned to image the planet, seven of its moons, its inner rings - and, in the background, our home planet, Earth. With both Cassini's wide-angle and narrow-angle cameras aimed at Saturn, Cassini was able to capture 323 images in just over four hours. This final mosaic uses 141 of those wide-angle images. Images taken using the red, green and blue spectral filters of the wide-angle camera were combined and mosaicked together to create this natural-color view. This image spans about 404,880 miles (651,591 kilomet

PIX4625315

Instruments, Spectroscopes Spectroscope with comparison scale, c 1860-1870

Instruments, Spectroscopes Spectroscope with comparison scale, c 1860-1870

UIS5083283

Zodiacal lights in the morning and evening - Zodiacal lights - morning and evening - The visible glow in the sky is called the zodiacal light. It comes from the reflection of the light of the Sun on the countless interplanetary dust; it draws the plane of the Solar System. At the top, on the morning of 1 November 2006, the light is tilted to the right (south); below, on 9 March 2007 at sunset, this light is tilted to the left (south). The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. Top, November 1st 2006 in the morning, zodiacal light is leaning right (south); bottom, March 9 2007, sunset, zodiacal light towards left (south)

Zodiacal lights in the morning and evening - Zodiacal lights - morning and evening - The visible glow in the sky is called the zodiacal light. It comes from the reflection of the light of the Sun on the countless interplanetary dust; it draws the plane of the Solar System. At the top, on the morning of 1 November 2006, the light is tilted to the right (south); below, on 9 March 2007 at sunset, this light is tilted to the left (south). The faint cone of light extending from the horizon along the ecliptic is known as zodiacal light. It comes from the reflexion of the sun's light off tiny interplanetary dust particles in the plane of the solar system. Top, November 1st 2006 in the morning, zodiacal light is leaning right (south); bottom, March 9 2007, sunset, zodiacal light towards left (south)

Laurent Laveder

PIX4581524

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. Mosaic of 8 images obtained with a telescope of 30 cm in diameter.20h of pose. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

Pleiades open cluster - The Pleiades star cluster - The Pleiades star cluster contains about 500 stars formed 100 million years ago. It is located 440 light years from Earth, in the constellation Taurus. Mosaic of 8 images obtained with a telescope of 30 cm in diameter.20h of pose. M45, the Pleiades, is a beautiful open cluster in Taurus surrounded by reflection nebulosity. The cluster has been known since ancient times and contains six bright stars that can easily be seen with the unaided eye, and 500 stars total, most too faint to be seen. The blue nebulosity is visible by starlight reflected off of dust in space. The cluster is located about 440 light years from the Earth and is estimated to be about 100 million years old

R. Gendler

PIX4568984

Imaginary solar system, c 2005

Imaginary solar system, c 2005

UIS5104217

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

PIX4589985

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

Constellation Constellation of Auriga - The brightest star in the constellation is Capella. Auriga (the Charioteer) is one of 48 constellations (out of the current 88) that were noted by Ptolemy (83 - 161 CE). It represents a chariot and its driver, a shepherd, with a goat or a sheep over his shoulder. The brightest star in Auriga is Capella, which is the ancient Greek word for little goat. It is a binary star 42 light years distant and is about 75 times more luminous than the Sun. Surprisingly, Capella is one of only two conspicuous stars whose combined light is similar to that of the Sun (the other is Alpha Centauri), so appears white on this photograph. Sun - like stars are common but are generally too faint to be seen at a distance which is why there are so few visible to the eye. Best seen in the early evening in February

PIX4589984

Spiral Galaxy M100 in Berenice's Hair - Spiral galaxy M100 in Coma Berenices - The spiral galaxy M100 is located about 60 million years ago - light from Earth. It belongs to the Virgin's galaxy cluster. Several dwarf elliptic galaxies are visible in this image, one just above M100 probably interacting. This image was obtained by Siding Spring's 3.9m telescope. In this deep image fainter galaxies appear. One seems to be involved with the faint outskirts of the large spiral. The somewhat distorted shape of the dwarf galaxy suggests it could be both influencing and being influenced by M100, and may be the cause of the asymmetry in the spiral arms. Nearby is an even fainter, elongated dwarf galaxy and elsewhere in the picture are several others, all probably members of the Virgo cluster, which spills over into the adjoining constellation of Coma Berenices

Spiral Galaxy M100 in Berenice's Hair - Spiral galaxy M100 in Coma Berenices - The spiral galaxy M100 is located about 60 million years ago - light from Earth. It belongs to the Virgin's galaxy cluster. Several dwarf elliptic galaxies are visible in this image, one just above M100 probably interacting. This image was obtained by Siding Spring's 3.9m telescope. In this deep image fainter galaxies appear. One seems to be involved with the faint outskirts of the large spiral. The somewhat distorted shape of the dwarf galaxy suggests it could be both influencing and being influenced by M100, and may be the cause of the asymmetry in the spiral arms. Nearby is an even fainter, elongated dwarf galaxy and elsewhere in the picture are several others, all probably members of the Virgo cluster, which spills over into the adjoining constellation of Coma Berenices

PIX4611307

An Unknown Young Painter aged 18

An Unknown Young Painter aged 18

Italian School, (16th century)

USB1155860

Instruments, Spectroscopes Sir William Ramsay's direct-vision spectroscope, 1880-1890

Instruments, Spectroscopes Sir William Ramsay's direct-vision spectroscope, 1880-1890

UIS5083285

Instruments, Spectroscopes Spectroscope with comparison scale, c 1860-1870

Instruments, Spectroscopes Spectroscope with comparison scale, c 1860-1870

UIS5083288

Amalthea, one of the moons of Jupiter, photographed by Voyager 1, 1979

Amalthea, one of the moons of Jupiter, photographed by Voyager 1, 1979

UIS5071041

Pisces Constellation - Constellation of Pisces - Pisces (the Fishes) is a large constellation of mostly quite faint stars at the edge of an ancient and huge part of the sky known as 'the Sea'. Pisces is said to resemble two fish, which are tied to a (alpha) Piscium by long lines. Alpha Piscium is known as Al Rischa in English, where it means 'the cord'. Some Greek mythologies have two men tethered to this star, though some of the other stars have fishy names. The Sun is in Pisces from March 13 to April 19, and it crosses the ecliptic on March 21, which marks the vernal Equinox, the first day of autumn in the southern hemisphere. This used to be called the first point in Aries, but precession has now moved it into Pisces. However, this point in the sky is the origin of right ascension (RA) in the astronomical equatorial coordinate sytem, and because it moves with precession, RA and Dec are defined at a certain date

Pisces Constellation - Constellation of Pisces - Pisces (the Fishes) is a large constellation of mostly quite faint stars at the edge of an ancient and huge part of the sky known as 'the Sea'. Pisces is said to resemble two fish, which are tied to a (alpha) Piscium by long lines. Alpha Piscium is known as Al Rischa in English, where it means 'the cord'. Some Greek mythologies have two men tethered to this star, though some of the other stars have fishy names. The Sun is in Pisces from March 13 to April 19, and it crosses the ecliptic on March 21, which marks the vernal Equinox, the first day of autumn in the southern hemisphere. This used to be called the first point in Aries, but precession has now moved it into Pisces. However, this point in the sky is the origin of right ascension (RA) in the astronomical equatorial coordinate sytem, and because it moves with precession, RA and Dec are defined at a certain date

PIX4593517

Spiral galaxy NGC 4013 in the Great Bear - Edge - on galaxy NGC 4013 in Ursa Major - The spiral galaxy NGC 4013 is located 55 million years - light in the constellation Big Bear. In this image, traces left by the passage of a dwarf galaxy appear as a stellar current around that galaxy. A bright star seems to radiate from this galaxy; in reality, this star is much closer and belongs to our galaxy. Edge - on view of NGC 4013 spiral galaxy located about 55 million light years in Ursa Major. This deep color image reveals an enormous faint looping structure extending over 80,000 light years from the galaxy center. This is a stream of stars coming from a smaller galaxy who merged with NGC 4013. The very bright star in the center of the galaxy is very much closer to us than it appears and belongs to our galaxy

Spiral galaxy NGC 4013 in the Great Bear - Edge - on galaxy NGC 4013 in Ursa Major - The spiral galaxy NGC 4013 is located 55 million years - light in the constellation Big Bear. In this image, traces left by the passage of a dwarf galaxy appear as a stellar current around that galaxy. A bright star seems to radiate from this galaxy; in reality, this star is much closer and belongs to our galaxy. Edge - on view of NGC 4013 spiral galaxy located about 55 million light years in Ursa Major. This deep color image reveals an enormous faint looping structure extending over 80,000 light years from the galaxy center. This is a stream of stars coming from a smaller galaxy who merged with NGC 4013. The very bright star in the center of the galaxy is very much closer to us than it appears and belongs to our galaxy

R. Jay GaBany

PIX4611034

Halley Comete - Halley's Comet on December 9, 1985 - Halley Comete December 9, 1985

Halley Comete - Halley's Comet on December 9, 1985 - Halley Comete December 9, 1985

PIX4569993

Portrait of the ' Vrede' (?), c.1661 (offset, graphite)

Portrait of the ' Vrede' (?), c.1661 (offset, graphite)

Velde, Willem van de, the Younger (1633-1707)

MMM7342095

Portrait of 'Jaarsveld', c.1665 (graphite, grey wash)

Portrait of 'Jaarsveld', c.1665 (graphite, grey wash)

Velde, Willem van de, the Elder (1611-93)

MMM7342035

Nebulae IC 1805 and IC 1848 and the double cluster of Persee - The Double Cluster and Double Nebula - The double cluster of Persee (NGC 884 and NGC 869) is visible at the top left of the image. IC 1848 (upper right) is an emission nebula associated with a cluster of stars; it also houses the CR 34 star cluster. Lower right, the largest nebula, IC 1805. The Double Cluster in Perseus (NGC 884 and NGC 869) is at upper left. The Double Nebulae, at right, are two large complexes of faint emission nebulosity in Cassiopeia. LBN 667 is at upper right. IC 1805 is at lower right. Both are red hydrogen - alpha emission nebulae. The large loose open cluster Stock 2 is just below and left of center. This incredibly star - rich area of sky lies in the Milky Way on the border of Cassiopeia and Perseus

Nebulae IC 1805 and IC 1848 and the double cluster of Persee - The Double Cluster and Double Nebula - The double cluster of Persee (NGC 884 and NGC 869) is visible at the top left of the image. IC 1848 (upper right) is an emission nebula associated with a cluster of stars; it also houses the CR 34 star cluster. Lower right, the largest nebula, IC 1805. The Double Cluster in Perseus (NGC 884 and NGC 869) is at upper left. The Double Nebulae, at right, are two large complexes of faint emission nebulosity in Cassiopeia. LBN 667 is at upper right. IC 1805 is at lower right. Both are red hydrogen - alpha emission nebulae. The large loose open cluster Stock 2 is just below and left of center. This incredibly star - rich area of sky lies in the Milky Way on the border of Cassiopeia and Perseus

Jerry Lodriguss

PIX4622368

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different energy levels within the interaction. Although the star responsible for the Vela supernova remnant exploded 12,000 years ago, it is still affecting its env

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different energy levels within the interaction. Although the star responsible for the Vela supernova remnant exploded 12,000 years ago, it is still affecting its env

PIX4582885

Detection of an exoplanet by microlens effect - Detection of an exoplanet: Gravitational microlensing - On the left, the observation of a distant star whose light is diluted. On the right, the light of this star is amplified by gravitational lens effect. The gravitational lens effect occurs when the gravitational field of a star acts as a magnifying glass by amplifying the light emitted by a farther star. This amplification is measurable, and when the foreground star is accompanied by a planet, a second peak of intensity in the life rays appears more weakly. Illustration showing at left the observation of faint light emitted by a distant star, at right, the light of the same star magnified by a gravitational lens. Microlensing occurs when the gravitational field of a star acts like a lens, magnifying the light of a distant background star. Possible planets orbiting the foreground star can cause detectable anomalies in the lensing event light curve

Detection of an exoplanet by microlens effect - Detection of an exoplanet: Gravitational microlensing - On the left, the observation of a distant star whose light is diluted. On the right, the light of this star is amplified by gravitational lens effect. The gravitational lens effect occurs when the gravitational field of a star acts as a magnifying glass by amplifying the light emitted by a farther star. This amplification is measurable, and when the foreground star is accompanied by a planet, a second peak of intensity in the life rays appears more weakly. Illustration showing at left the observation of faint light emitted by a distant star, at right, the light of the same star magnified by a gravitational lens. Microlensing occurs when the gravitational field of a star acts like a lens, magnifying the light of a distant background star. Possible planets orbiting the foreground star can cause detectable anomalies in the lensing event light curve

PIX4573970

Fish of the family Cyprinidae

Fish of the family Cyprinidae

BL3276788

Proxima Star of Centauri - Proxima Centauri - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Proxima Centauri is the nearest known star to the sun, at a distance of about 4.2 light years. It is an intrinsically faint red star, more than ten magnitudes (ten thousand times) fainter than the Sun. It is also much cooler, with a surface temperature of about 3100 C. Its visual (apparent) magnitude is eleven, so it is only visible with a good telescope, and only then from southern latitudes. Proxima is about one - tenth the mass of the sun, which accounts for its low surface temperature. It is possibly an outlying member of the triple alpha Centauri system just a few light days closer to us than the other, much brighter stars in the group

Proxima Star of Centauri - Proxima Centauri - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Proxima Centauri is the nearest known star to the sun, at a distance of about 4.2 light years. It is an intrinsically faint red star, more than ten magnitudes (ten thousand times) fainter than the Sun. It is also much cooler, with a surface temperature of about 3100 C. Its visual (apparent) magnitude is eleven, so it is only visible with a good telescope, and only then from southern latitudes. Proxima is about one - tenth the mass of the sun, which accounts for its low surface temperature. It is possibly an outlying member of the triple alpha Centauri system just a few light days closer to us than the other, much brighter stars in the group

PIX4571821

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different energy levels within the interaction. Although the star responsible for the Vela supernova remnant exploded 12,000 years ago, it is still affecting its env

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different energy levels within the interaction. Although the star responsible for the Vela supernova remnant exploded 12,000 years ago, it is still affecting its env

PIX4582820

Pisces Constellation - Constellation of Pisces - Pisces (the Fishes) is a large constellation of mostly quite faint stars at the edge of an ancient and huge part of the sky known as 'the Sea'. Pisces is said to resemble two fish, which are tied to a (alpha) Piscium by long lines. Alpha Piscium is known as Al Rischa in English, where it means 'the cord'. Some Greek mythologies have two men tethered to this star, though some of the other stars have fishy names. The Sun is in Pisces from March 13 to April 19, and it crosses the ecliptic on March 21, which marks the vernal Equinox, the first day of autumn in the southern hemisphere. This used to be called the first point in Aries, but precession has now moved it into Pisces. However, this point in the sky is the origin of right ascension (RA) in the astronomical equatorial coordinate sytem, and because it moves with precession, RA and Dec are defined at a certain date

Pisces Constellation - Constellation of Pisces - Pisces (the Fishes) is a large constellation of mostly quite faint stars at the edge of an ancient and huge part of the sky known as 'the Sea'. Pisces is said to resemble two fish, which are tied to a (alpha) Piscium by long lines. Alpha Piscium is known as Al Rischa in English, where it means 'the cord'. Some Greek mythologies have two men tethered to this star, though some of the other stars have fishy names. The Sun is in Pisces from March 13 to April 19, and it crosses the ecliptic on March 21, which marks the vernal Equinox, the first day of autumn in the southern hemisphere. This used to be called the first point in Aries, but precession has now moved it into Pisces. However, this point in the sky is the origin of right ascension (RA) in the astronomical equatorial coordinate sytem, and because it moves with precession, RA and Dec are defined at a certain date

PIX4593501

Motion of the Star Proxima of Centauri - The proper motion of Proxima Centauri - Proxima of Centauri (in the center of the image) is the closest star to the Sun, located at a distance of 4.2 years - light. This star is a red dwarf, 10,000 times less luminous than our Sun, and is invisible to the naked eye. Its proximity makes it move quickly ahead of the other stars. This composite image made from three images taken in 1976 (blue), 1982 (red) and 1993 (green) shows the shift of the star in 17 years. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Proxima Centauri is the nearest known star to the sun, at a distance of about 4.2 light years. It is an intrinsically faint red star, more than ten magnitudes (ten thousand times) fainter than the Sun. It is also much cooler, with a surface temperature of about 3100 C. Its visual (apparent) magnitude is eleven, so it is only visible with a good telescope, and only then from southern latitudes. Proxima is about one - tenth t

Motion of the Star Proxima of Centauri - The proper motion of Proxima Centauri - Proxima of Centauri (in the center of the image) is the closest star to the Sun, located at a distance of 4.2 years - light. This star is a red dwarf, 10,000 times less luminous than our Sun, and is invisible to the naked eye. Its proximity makes it move quickly ahead of the other stars. This composite image made from three images taken in 1976 (blue), 1982 (red) and 1993 (green) shows the shift of the star in 17 years. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Proxima Centauri is the nearest known star to the sun, at a distance of about 4.2 light years. It is an intrinsically faint red star, more than ten magnitudes (ten thousand times) fainter than the Sun. It is also much cooler, with a surface temperature of about 3100 C. Its visual (apparent) magnitude is eleven, so it is only visible with a good telescope, and only then from southern latitudes. Proxima is about one - tenth t

PIX4571842

Amalthea, one of the moons of Jupiter, 1979

Amalthea, one of the moons of Jupiter, 1979

UIS5070951

Planetary nebula Helix (NGC 7293) in Aquarius - Planetary nebula Helix (NGC 7293) - This nebula is located 690 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope This faint object is the nearest planetary nebula to the Sun and on deep photographs has a diameter of about half a degree - - the same apparent size as the Sun in the sky. The AAT colour picture shows the brighter parts of the nebula, revealing various ionization levels within the shell of matter ejected from the central star. This picture was made without unsharp masking. Unsharp masking emphasises the smallest of the radial blobs inside the red shell, which are about 150 astronomical units across (150 times the Earth - Sun distance). These radial streaks give this beautiful object its alternative name, the Sunflower Nebula. The Helix is about 400 light years away, or about 100 times more distant than the nearest stars

Planetary nebula Helix (NGC 7293) in Aquarius - Planetary nebula Helix (NGC 7293) - This nebula is located 690 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope This faint object is the nearest planetary nebula to the Sun and on deep photographs has a diameter of about half a degree - - the same apparent size as the Sun in the sky. The AAT colour picture shows the brighter parts of the nebula, revealing various ionization levels within the shell of matter ejected from the central star. This picture was made without unsharp masking. Unsharp masking emphasises the smallest of the radial blobs inside the red shell, which are about 150 astronomical units across (150 times the Earth - Sun distance). These radial streaks give this beautiful object its alternative name, the Sunflower Nebula. The Helix is about 400 light years away, or about 100 times more distant than the nearest stars

PIX4623608

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