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Images de 'Dwarf' médias trouvés, 2,192

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Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves cannot be detected directly by astronomers on Earth they can be detected indirectly by measuring the change in the orbit of the system as it loses energy. As the p

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves cannot be detected directly by astronomers on Earth they can be detected indirectly by measuring the change in the orbit of the system as it loses energy. As the p

PIX4572892

Siberian musk door and forest musk musk or dwarf deer musk (pygmee) - Lithography, illustration by Jean Gabriel Pretre (1780-1885) edited by Pierre Jean Francois Turpin (1775-1840), extracted from the “Dictionary of Natural Sciences” by Frederic Cuvier, Paris, France, 1816 - Siberian musk deer, Moschus mosus chiferus (vulnerable), and dwarf musk deer or Chinese forest musk deer, Moschus berezovskii (endangered) - Handcoloured copperplate engraving, illustration by J. G. Pretre (1780-1845), directed by P. J.F. Turpin, from Frederic Cuvier's “” Dictionary of Natural Science,”” Paris, France, 1816

Siberian musk door and forest musk musk or dwarf deer musk (pygmee) - Lithography, illustration by Jean Gabriel Pretre (1780-1885) edited by Pierre Jean Francois Turpin (1775-1840), extracted from the “Dictionary of Natural Sciences” by Frederic Cuvier, Paris, France, 1816 - Siberian musk deer, Moschus mosus chiferus (vulnerable), and dwarf musk deer or Chinese forest musk deer, Moschus berezovskii (endangered) - Handcoloured copperplate engraving, illustration by J. G. Pretre (1780-1845), directed by P. J.F. Turpin, from Frederic Cuvier's “” Dictionary of Natural Science,”” Paris, France, 1816

FLO4651422

Yeble elderberry or small elderberry. Coloured copper engraving from a drawing by Isaac Russell from William Baxter's book “English Botanical Phenomenes””, 1834. William Baxter (1788-1871) was the curator of the Oxford Botanical Garden from 1813 to 1854. Dwarf elder tree, Sambucus ebulus. Handcoloured copperplate engraving by WE Albutt of a drawing by Isaac Russell from William Baxter's “” British Phaenogamous Botany”” 1835. Scotsman William Baxter (1788-1871) was the curator of the Oxford Botanic Garden from 1813 to 1854.

Yeble elderberry or small elderberry. Coloured copper engraving from a drawing by Isaac Russell from William Baxter's book “English Botanical Phenomenes””, 1834. William Baxter (1788-1871) was the curator of the Oxford Botanical Garden from 1813 to 1854. Dwarf elder tree, Sambucus ebulus. Handcoloured copperplate engraving by WE Albutt of a drawing by Isaac Russell from William Baxter's “” British Phaenogamous Botany”” 1835. Scotsman William Baxter (1788-1871) was the curator of the Oxford Botanic Garden from 1813 to 1854.

FLO4566040

Artist's view of the solar system - Solar system artwork - Artist's view of the solar system with Pluto. Planets are represented in order of proximity to the sun. From left to right: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. A comet and a planetary nebula are also represented. Solar system artwork with Pluto. The planets are shown from the nearest planet of the Sun, Mercury (left), to the farthest (right), Pluto. A comet and a planetary nebula are shown. Since August 2006, Pluto is no more a planet but a dwarf planet called 134340 Pluto

Artist's view of the solar system - Solar system artwork - Artist's view of the solar system with Pluto. Planets are represented in order of proximity to the sun. From left to right: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. A comet and a planetary nebula are also represented. Solar system artwork with Pluto. The planets are shown from the nearest planet of the Sun, Mercury (left), to the farthest (right), Pluto. A comet and a planetary nebula are shown. Since August 2006, Pluto is no more a planet but a dwarf planet called 134340 Pluto

PIX4630230

Barree spiral galaxy NGC 1559 and supernova - Barred spiral galaxy NGC 1559 with a supernova - The galaxy NGC 1559 is a galaxy of Seyfert located about 50 million years ago - light in the constellation Reticule. In this image obtained in 2005 by the Kueyen European telescope of the VLT in Chile, a bright star is visible just above the galaxy, a supernova of type Ia named SN 2005df. On the night of August 4, 2005, an amateur astronomer and supernovae discoverer Reverend Robert Evans discovered a supernova just North of this galaxy. This supernova is classified as a somewhat unusual type Ia supernova, caught probably 10 days before it reached its maximum brightness. Such a supernova is thought to be the result of the explosion of a small and dense star - a white dwarf - inside a binary system. As its companion was continuously spilling matter onto the white dwarf, the white dwarf reached a critical mass, leading to a fatal instability. NGC 1559 is a SBc (s) - type spiral galaxy located a

Barree spiral galaxy NGC 1559 and supernova - Barred spiral galaxy NGC 1559 with a supernova - The galaxy NGC 1559 is a galaxy of Seyfert located about 50 million years ago - light in the constellation Reticule. In this image obtained in 2005 by the Kueyen European telescope of the VLT in Chile, a bright star is visible just above the galaxy, a supernova of type Ia named SN 2005df. On the night of August 4, 2005, an amateur astronomer and supernovae discoverer Reverend Robert Evans discovered a supernova just North of this galaxy. This supernova is classified as a somewhat unusual type Ia supernova, caught probably 10 days before it reached its maximum brightness. Such a supernova is thought to be the result of the explosion of a small and dense star - a white dwarf - inside a binary system. As its companion was continuously spilling matter onto the white dwarf, the white dwarf reached a critical mass, leading to a fatal instability. NGC 1559 is a SBc (s) - type spiral galaxy located a

PIX4609916

The Dawn probe near Vesta - Artist's view: Artist's view of the Dawn probe near the Vesta asteroid. On 16 July 2011 the probe went into orbit around Vesta and collected data that significantly improved our knowledge of asteroid. After studying Vesta for more than a year, the probe left on 5 September 2012 to reach the dwarf planet Ceres. Artist's concept of the Dawn spacecraft with asteroid Vesta. Dawn, part of Nasa's Discovery Program of competitively selected missions, was launched in 2007 to orbit the large asteroid Vesta (2011-2012) and the dwarf planet Ceres (2015).

The Dawn probe near Vesta - Artist's view: Artist's view of the Dawn probe near the Vesta asteroid. On 16 July 2011 the probe went into orbit around Vesta and collected data that significantly improved our knowledge of asteroid. After studying Vesta for more than a year, the probe left on 5 September 2012 to reach the dwarf planet Ceres. Artist's concept of the Dawn spacecraft with asteroid Vesta. Dawn, part of Nasa's Discovery Program of competitively selected missions, was launched in 2007 to orbit the large asteroid Vesta (2011-2012) and the dwarf planet Ceres (2015).

Miller, Ron (b.1947)

PIX4643719

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

PIX4572795

Comparison between the sizes of Earth, Pluto, Charon and the Moon

Comparison between the sizes of Earth, Pluto, Charon and the Moon

Walter B Myers

PIX4629992

Planetary nebula Abell 21 in Gemini - Planetary nebula Abell 21 in Gemini - Nebula Abell 21 (or PK205+14.5) is an old planetary nebula located about 1500 years - light from Earth in the constellation Gemeaux. The Medusa Nebula (Abell 21 or PK205+14.5) is a very old planetary nebula located about 1500 light years away in the constellation of Gemini. It spans approximately 4 light years across. The burned out stellar cinder known as a white dwarf can be seen glowing blue (by virtue of its emitted heat) in the center of the nebula complex

Planetary nebula Abell 21 in Gemini - Planetary nebula Abell 21 in Gemini - Nebula Abell 21 (or PK205+14.5) is an old planetary nebula located about 1500 years - light from Earth in the constellation Gemeaux. The Medusa Nebula (Abell 21 or PK205+14.5) is a very old planetary nebula located about 1500 light years away in the constellation of Gemini. It spans approximately 4 light years across. The burned out stellar cinder known as a white dwarf can be seen glowing blue (by virtue of its emitted heat) in the center of the nebula complex

R. Gendler

PIX4623863

Kangaroo Island emu or dwarf emu - l'emeu de Baudin - Dromaius baudinianus, extinct. (Possibly extinct King Island emu, Dromaius novaehollandiae ater, at right.) Taken from Charles-Alexandre Leseur's illustration in Peron and Freycinet's “” Voyage of Discovery to the Southern Lands,”” 1807. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1807. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830.

Kangaroo Island emu or dwarf emu - l'emeu de Baudin - Dromaius baudinianus, extinct. (Possibly extinct King Island emu, Dromaius novaehollandiae ater, at right.) Taken from Charles-Alexandre Leseur's illustration in Peron and Freycinet's “” Voyage of Discovery to the Southern Lands,”” 1807. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1807. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830.

FLO4576645

Spiral Galaxy M63 in Hunting Dogs - Spiral galaxy M63 in Canes Venatici - The spiral galaxy M63 (NGC 5055) is located about 35 million years ago - light from Earth. In this image obtained with a 50 cm telescope, the halo around the galaxy is visible and shows a stream of stars from a dwarf satellite galaxy. M63 (NGC 5055) is a spiral glaxy in the contellation Canes Venatici at about 35 million light - years from Earth. Visible in this image is a very faint, giant arc - loop feature in the halo of the galaxy Messier 63; this feature is the stellar stream of a disrupted dwarf satellite galaxy

Spiral Galaxy M63 in Hunting Dogs - Spiral galaxy M63 in Canes Venatici - The spiral galaxy M63 (NGC 5055) is located about 35 million years ago - light from Earth. In this image obtained with a 50 cm telescope, the halo around the galaxy is visible and shows a stream of stars from a dwarf satellite galaxy. M63 (NGC 5055) is a spiral glaxy in the contellation Canes Venatici at about 35 million light - years from Earth. Visible in this image is a very faint, giant arc - loop feature in the halo of the galaxy Messier 63; this feature is the stellar stream of a disrupted dwarf satellite galaxy

R. Jay GaBany

PIX4612127

Dawn and Vesta and Ceres - Artist's concept of the Dawn spacecraft with Vesta and Ceres - Artist's view of the Dawn probe near the Vesta asteroid and the dwarf planet Ceres Artist's concept of the Dawn spacecraft with Vesta and Ceres. Dawn, part of Nasa's Discovery Program of competitively selected missions, was launched in 2007 to orbit the large asteroid Vesta and the dwarf planet Ceres. The two bodies have very different properties from each other. By observing them both with the same set of instruments, Dawn will probe the early solar system and specify the properties of each body

Dawn and Vesta and Ceres - Artist's concept of the Dawn spacecraft with Vesta and Ceres - Artist's view of the Dawn probe near the Vesta asteroid and the dwarf planet Ceres Artist's concept of the Dawn spacecraft with Vesta and Ceres. Dawn, part of Nasa's Discovery Program of competitively selected missions, was launched in 2007 to orbit the large asteroid Vesta and the dwarf planet Ceres. The two bodies have very different properties from each other. By observing them both with the same set of instruments, Dawn will probe the early solar system and specify the properties of each body

PIX4607287

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

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

Jerry Lodriguss

PIX4571719

Meadow jumping mouse, Zapus hudsonius 1, sandy mole rat, Spalax arenarius 2, grey dwarf hamster, Cricetulus migratorius 3, Siberian hamster, Phodopus sungorus 4, Chinese hamster Cricetulus barabensis 5, northern mole vole, Ellobius talpinus 6, and Cape mole rat, Georychus capus ensis 7. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830.

Meadow jumping mouse, Zapus hudsonius 1, sandy mole rat, Spalax arenarius 2, grey dwarf hamster, Cricetulus migratorius 3, Siberian hamster, Phodopus sungorus 4, Chinese hamster Cricetulus barabensis 5, northern mole vole, Ellobius talpinus 6, and Cape mole rat, Georychus capus ensis 7. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830.

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New Horizons near Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies by dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 11,000 miles from Pluto (lower left), 23,000 miles from its largest moon Charon (upper right) and 2.97 billion miles from the Earth. While little is known about Pluto's appearance, here this Kuiper belt dwarf planet is realized as a frozen world cove

New Horizons near Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies by dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 11,000 miles from Pluto (lower left), 23,000 miles from its largest moon Charon (upper right) and 2.97 billion miles from the Earth. While little is known about Pluto's appearance, here this Kuiper belt dwarf planet is realized as a frozen world cove

Walter B Myers

PIX4607366

Remnants of Supernova Tycho in X in Cassiopee - Tycho's Supernova Remnant: Chandra's View of Tycho's Supernova Remnant This Chandra image reveals fascinating details of the turbulent debris created by a supernova explosion that was observed by the Danish astronomer Tycho Brahe in the year 1572. The colors show different X - ray energies, with red, green, and blue representing low, medium and high energies, respectively. The image is cut off at the bottom because the southernmost region of the remnant fell outside the field of view of the detector. A shock wave produced by the expanding debris is outlined by the strikingly sharp blue circular arcs of twenty million degree Celsius gas seen on the outer rim. The stellar debris, which has a temperature of about ten million degrees and is visible only in X - rays, shows up as mottled yellow, green and red fingers of gas. Tycho's supernova remnant presents several interesting contrasts with the Cassiopeia A (Cas A) supernova remnant. The deb

Remnants of Supernova Tycho in X in Cassiopee - Tycho's Supernova Remnant: Chandra's View of Tycho's Supernova Remnant This Chandra image reveals fascinating details of the turbulent debris created by a supernova explosion that was observed by the Danish astronomer Tycho Brahe in the year 1572. The colors show different X - ray energies, with red, green, and blue representing low, medium and high energies, respectively. The image is cut off at the bottom because the southernmost region of the remnant fell outside the field of view of the detector. A shock wave produced by the expanding debris is outlined by the strikingly sharp blue circular arcs of twenty million degree Celsius gas seen on the outer rim. The stellar debris, which has a temperature of about ten million degrees and is visible only in X - rays, shows up as mottled yellow, green and red fingers of gas. Tycho's supernova remnant presents several interesting contrasts with the Cassiopeia A (Cas A) supernova remnant. The deb

PIX4582513

Globular cluster M54 in Sagittarius - Globular cluster M54 in Sagittarius - The globular cluster M54 photographed by the Hubble space telescope (HST). M54 resides about 90,000 light years from Earth, in the dwarf galaxy of Sagittarius. The object shown in this beautiful Hubble image, dubbed Messier 54, could be just another globular cluster, but this dense and faint group of stars was in fact the first globular cluster found that is outside our galaxy. Discovered by the famous astronomer Charles Messier in 1778, Messier 54 belongs to a satellite of the Milky Way called the Sagittarius Dwarf Elliptical Galaxy. Messier had no idea of the significance of his discovery at the time, and it wasn't until over two centuries later, in 1994, that astronomers found Messier 54 to be part of the miniature galaxy and not our own. Current estimates indicate that the Sagittarius dwarf, and hence the cluster, is situated almost 90 000 light - years away - - more than three times as far from the centre

Globular cluster M54 in Sagittarius - Globular cluster M54 in Sagittarius - The globular cluster M54 photographed by the Hubble space telescope (HST). M54 resides about 90,000 light years from Earth, in the dwarf galaxy of Sagittarius. The object shown in this beautiful Hubble image, dubbed Messier 54, could be just another globular cluster, but this dense and faint group of stars was in fact the first globular cluster found that is outside our galaxy. Discovered by the famous astronomer Charles Messier in 1778, Messier 54 belongs to a satellite of the Milky Way called the Sagittarius Dwarf Elliptical Galaxy. Messier had no idea of the significance of his discovery at the time, and it wasn't until over two centuries later, in 1994, that astronomers found Messier 54 to be part of the miniature galaxy and not our own. Current estimates indicate that the Sagittarius dwarf, and hence the cluster, is situated almost 90 000 light - years away - - more than three times as far from the centre

PIX4565011

Spiral galaxy NGC 4651 in Berenice's Hair - Spiral galaxy NGC 4651 in Coma Berenices: The galaxy NGC 4651 (Arp 189) is located about 50 million light years away from Earth - The Umbrella Galaxy (NGC 4651 or Arp 189) exhibits a jet like spear that's strikingly coherent and narrow. The structure was previously reported by Boris Vorontsov Velyaminov in 1959 but never interpreted as a stellar tidal stream. This deep image additionally shows a spectacular crescent shaped shell surrounding the east side of the star system that corresponds to the apocenter of the dwarf galaxy. This galaxy is located at about 50 million light years away.

Spiral galaxy NGC 4651 in Berenice's Hair - Spiral galaxy NGC 4651 in Coma Berenices: The galaxy NGC 4651 (Arp 189) is located about 50 million light years away from Earth - The Umbrella Galaxy (NGC 4651 or Arp 189) exhibits a jet like spear that's strikingly coherent and narrow. The structure was previously reported by Boris Vorontsov Velyaminov in 1959 but never interpreted as a stellar tidal stream. This deep image additionally shows a spectacular crescent shaped shell surrounding the east side of the star system that corresponds to the apocenter of the dwarf galaxy. This galaxy is located at about 50 million light years away.

R. Jay GaBany

PIX4611793

Artist's view of the exoplanet Gliese 581c - Artwork of exoplanet Gliese 581c: The star Gliese 581 seen from the surface of the exoplanete Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible alien life. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super-earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super-earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.””

Artist's view of the exoplanet Gliese 581c - Artwork of exoplanet Gliese 581c: The star Gliese 581 seen from the surface of the exoplanete Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible alien life. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super-earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super-earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.””

Miller, Ron (b.1947)

PIX4607996

Comparison of Sirius B, Sun and Earth Sizes - Size comparison: Sirius B, Earth and Sun - Sirius B star is a white dwarf star located 8.6 years - light of the Earth. A little larger than the Earth (but of a mass close to that of our Sun), it appears on this illustration at the scale next to the Earth and before the Sun. Sirius B, a white dwarf star just 8.6 light - years from Earth, is a little larger than our world, and far smaller than our Sun. It orbits the brightest star in Earth's sky, Sirius A, at a distance equivalent to the distance from our Sun to Uranus. While Sirius B is about the size of Earth, it has almost as much mass as our Sun

Comparison of Sirius B, Sun and Earth Sizes - Size comparison: Sirius B, Earth and Sun - Sirius B star is a white dwarf star located 8.6 years - light of the Earth. A little larger than the Earth (but of a mass close to that of our Sun), it appears on this illustration at the scale next to the Earth and before the Sun. Sirius B, a white dwarf star just 8.6 light - years from Earth, is a little larger than our world, and far smaller than our Sun. It orbits the brightest star in Earth's sky, Sirius A, at a distance equivalent to the distance from our Sun to Uranus. While Sirius B is about the size of Earth, it has almost as much mass as our Sun

M. Carroll

PIX4571742

Artist view of the Exoplanete Gliese 581c - Artwork of exoplanet Gliese 581c - Artist view of the Exoplanete Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible extra-terrestrial life. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super - earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super - earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.”” This image of a rocky and variegated Gliese 581 c with an atmosphere and clouds is purely speculative

Artist view of the Exoplanete Gliese 581c - Artwork of exoplanet Gliese 581c - Artist view of the Exoplanete Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible extra-terrestrial life. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super - earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super - earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.”” This image of a rocky and variegated Gliese 581 c with an atmosphere and clouds is purely speculative

Walter B Myers

PIX4573773

White dwarf and planet in the globular cluster M4 - Oldest known planet in globular cluster M4 - The globular cluster M4 is located about 7000 years from Earth and seems to be 13 billion years old. The Hubble a space telescope identifies a Jupiter-sized planet orbiting a white dwarf star (green circle on the image). It would be the oldest planet known to date. Image of a starfield in the globular cluster M4. The green circle at right shows the location of a white dwarf star where a Jupiter - sized planet is orbiting. The planet is 2.5 times the mass of Jupiter. It is the oldest known planet identified. M4 is located 7000 light - years away in the summer constellation Scorpius

White dwarf and planet in the globular cluster M4 - Oldest known planet in globular cluster M4 - The globular cluster M4 is located about 7000 years from Earth and seems to be 13 billion years old. The Hubble a space telescope identifies a Jupiter-sized planet orbiting a white dwarf star (green circle on the image). It would be the oldest planet known to date. Image of a starfield in the globular cluster M4. The green circle at right shows the location of a white dwarf star where a Jupiter - sized planet is orbiting. The planet is 2.5 times the mass of Jupiter. It is the oldest known planet identified. M4 is located 7000 light - years away in the summer constellation Scorpius

PIX4564535

Elliptical Galaxy M110 (NGC 205) in Andromede - Elliptical galaxy M110 (NGC 205) in Andromeda - The elliptical galaxy M110, Andromede's satellite galaxy, is about the same distance from us as M31, about 2.9 million years - light. It is of type E6 “special” because it presents some unusual dark structures (probably dust clouds). M110 is the second small companion (along with M32) to our sister galaxy, M31, the Andromeda Nebula. It is classified as type E5 or E6, often with the additional “” p”” for peculiar because of the structure clearly visible in this short exposure image, which is probably due to dust clouds. Because of its small size, it is usually counted as a dwarf spheroidal rather than a normal elliptical

Elliptical Galaxy M110 (NGC 205) in Andromede - Elliptical galaxy M110 (NGC 205) in Andromeda - The elliptical galaxy M110, Andromede's satellite galaxy, is about the same distance from us as M31, about 2.9 million years - light. It is of type E6 “special” because it presents some unusual dark structures (probably dust clouds). M110 is the second small companion (along with M32) to our sister galaxy, M31, the Andromeda Nebula. It is classified as type E5 or E6, often with the additional “” p”” for peculiar because of the structure clearly visible in this short exposure image, which is probably due to dust clouds. Because of its small size, it is usually counted as a dwarf spheroidal rather than a normal elliptical

Jim Misti

PIX4608661

The Transneptunien object 2007 OR10 - Illustration - Transneptunian Object 2007 OR10 - Artwork: (225088) 2007 OR10 is a Transneptunian object with a probable diameter of more than 1,000 km, making it a candidate for the status of a dwarf planet. It is the largest celestial body in the solar system that did not receive a name in 2016, it is also the third largest object known beyond Neptune. It has a satellite with a diameter of about 300 km - (225088) 2007 OR10 is a trans-Neptunian object (TNO) approximately 1500 kilometers in diameter. It is the third-largest known body in the Solar System beyond Neptune, and the largest known body in the Solar System without a name. According to current estimates as of May 2016, it is slightly larger than Makemake or Haumea, and is hence almost certainly a dwarf planet. It has one known moon

The Transneptunien object 2007 OR10 - Illustration - Transneptunian Object 2007 OR10 - Artwork: (225088) 2007 OR10 is a Transneptunian object with a probable diameter of more than 1,000 km, making it a candidate for the status of a dwarf planet. It is the largest celestial body in the solar system that did not receive a name in 2016, it is also the third largest object known beyond Neptune. It has a satellite with a diameter of about 300 km - (225088) 2007 OR10 is a trans-Neptunian object (TNO) approximately 1500 kilometers in diameter. It is the third-largest known body in the Solar System beyond Neptune, and the largest known body in the Solar System without a name. According to current estimates as of May 2016, it is slightly larger than Makemake or Haumea, and is hence almost certainly a dwarf planet. It has one known moon

Miller, Ron (b.1947)

PIX4629575

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

PIX4605150

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

Galactic centre region seen in X - Center of our galaxy in X Ray - Region of the centre of our galaxy seen in X-ray by the Chandra satellite. In the center of the image (white area), Sagittarius A*, the gas cloud surrounding a supermassive black hole. Mosaic of 88 images obtained between 2000 and 2007. This spectacular mosaic of Chandra images reveals hundreds of white dwarf stars, neutron stars, and black holes bathed in an incandescent fog of multimillion degree gas. A supermassive black hole, Sagittarius A*, residing at the center of our Galaxy is located inside the bright white patch in the middle of the image. This image combines low energy X-rays (colored red), intermediate energy X-rays (green) and high energy X-rays (blue). Mosaic of 88 images

Galactic centre region seen in X - Center of our galaxy in X Ray - Region of the centre of our galaxy seen in X-ray by the Chandra satellite. In the center of the image (white area), Sagittarius A*, the gas cloud surrounding a supermassive black hole. Mosaic of 88 images obtained between 2000 and 2007. This spectacular mosaic of Chandra images reveals hundreds of white dwarf stars, neutron stars, and black holes bathed in an incandescent fog of multimillion degree gas. A supermassive black hole, Sagittarius A*, residing at the center of our Galaxy is located inside the bright white patch in the middle of the image. This image combines low energy X-rays (colored red), intermediate energy X-rays (green) and high energy X-rays (blue). Mosaic of 88 images

PIX4638003

Spiral Galaxy NGC 634 - NGC 634 is a spiral galaxy located about 250 million light years away from Earth in the constellation Andromede. Image obtained by the Hubble Space Telescope (HST). NGC 634 is located 250 million light years away in the constellation of Andromeda. This spiral galaxy was discovered back in the nineteenth century by English astronomer Edouard Jean - Marie Stephan, but in 2008 it became a prime target for observations thanks to the violent demise of a white dwarf star. The type Ia supernova known as SN2008A was spotted in the galaxy and briefly rivalled the brilliance of its entire host galaxy but, despite the energy of the explosion, it can no longer be seen this Hubble image, which was taken around a year and a half later

Spiral Galaxy NGC 634 - NGC 634 is a spiral galaxy located about 250 million light years away from Earth in the constellation Andromede. Image obtained by the Hubble Space Telescope (HST). NGC 634 is located 250 million light years away in the constellation of Andromeda. This spiral galaxy was discovered back in the nineteenth century by English astronomer Edouard Jean - Marie Stephan, but in 2008 it became a prime target for observations thanks to the violent demise of a white dwarf star. The type Ia supernova known as SN2008A was spotted in the galaxy and briefly rivalled the brilliance of its entire host galaxy but, despite the energy of the explosion, it can no longer be seen this Hubble image, which was taken around a year and a half later

PIX4609410

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft rises from the smoke and fire on the launch pad to begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft rises from the smoke and fire on the launch pad to begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

PIX4605138

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft rises from the smoke and fire on the launch pad to begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

Delta II rocket decolling - DAWN probe - 09 - 2007 - Dawn spacecraft launch - 09 - 2007 - Delta II rocket decolving on 27 September 2007 carrying the DAWN probe destined for the study of the asteroid Vesta and the dwarf planet Ceres. September 27, 2007. The Delta II rocket carrying Nasa's Dawn spacecraft rises from the smoke and fire on the launch pad to begin its 1.7 - billion - mile journey through the inner solar system to study a pair of asteroids. Liftoff was at 7:34 a.m. EDT from Pad 17 - B at Cape Canaveral Air Force Station. The spacecraft will be the first to orbit two planetary bodies, asteroid Vesta and dwarf planet Ceres, during a single mission. It is also NASA's first purely scientific mission powered by three solar electric ion propulsion engine

PIX4605145

Spiral galaxy M31 in Andromede - M31, the Great galaxy in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral galaxy M31 in Andromede - M31, the Great galaxy in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

B&S.Fletcher

PIX4608687

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 3 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 3 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Jerry Lodriguss

PIX4608696

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left, and M110 (NGC 205) outside the image. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxy M32 is also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left, and M110 (NGC 205) outside the image. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxy M32 is also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

R. Gendler

PIX4608773

Andromede Galaxy - The Andromeda Galaxy (M31) - The Andromede galaxy is located about 2.3 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Andromede Galaxy - The Andromeda Galaxy (M31) - The Andromede galaxy is located about 2.3 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

PIX4608934

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2.9 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2.9 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

R. Gendler

PIX4608789

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Stephane Guisard

PIX4608847

Remains of supernova SN 1006 - Supernova remnant SN 1006 - Remains of supernova SN 1006 located 7000 years ago - light in the constellation Wolf. This supernova that appeared in 1006 is the result of a white dwarf star that absorbs the matter of a companion star became unstable and eventually exploded. This image is a composite of X-ray images obtained by the Chandra telescope (blue), by Cerro Tololo's 90 cm telescope (yellow) and by the Digitized Sky Survey (orange and light blue), and by the VLA and the Green Bank's telescope radio (red). Just over a thousand years ago, the stellar explosion known as supernova SN 1006 was observed. It was brighter than Venus, and visible during the day for weeks. The brightest supernova ever recorded on Earth, this spectacular light show was documented in China, Japan, Europe, and the Arab world. Astronomers now understand that SN 1006 was caused by a white dwarf star that captured mass from a companion star until the white dwarf became unstable and

Remains of supernova SN 1006 - Supernova remnant SN 1006 - Remains of supernova SN 1006 located 7000 years ago - light in the constellation Wolf. This supernova that appeared in 1006 is the result of a white dwarf star that absorbs the matter of a companion star became unstable and eventually exploded. This image is a composite of X-ray images obtained by the Chandra telescope (blue), by Cerro Tololo's 90 cm telescope (yellow) and by the Digitized Sky Survey (orange and light blue), and by the VLA and the Green Bank's telescope radio (red). Just over a thousand years ago, the stellar explosion known as supernova SN 1006 was observed. It was brighter than Venus, and visible during the day for weeks. The brightest supernova ever recorded on Earth, this spectacular light show was documented in China, Japan, Europe, and the Arab world. Astronomers now understand that SN 1006 was caused by a white dwarf star that captured mass from a companion star until the white dwarf became unstable and

PIX4583213

Artist's view of the New Horizons probe near Pluto - New Horizons over Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft over dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 10,000 miles from Pluto (upper right), 22,000 miles from its largest moon Charon (upper left) and 2.97 billion miles from the Earth. Dominating this side of the spacecraft with an 8 inch aperture is th

Artist's view of the New Horizons probe near Pluto - New Horizons over Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft over dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 10,000 miles from Pluto (upper right), 22,000 miles from its largest moon Charon (upper left) and 2.97 billion miles from the Earth. Dominating this side of the spacecraft with an 8 inch aperture is th

Walter B Myers

PIX4607329

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

PIX4571724

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

Walter B Myers

PIX4607362

Titan Exploration - Illustration - Titan's low surface gravity - Astronauts on the surface of Titan. On Saturn's satellite, gravity is lower than on the Moon, an astronaut weights ten times less than on Earth. While Titan is one of the largest terrestrial worlds in the Solar System, larger even than any of the known dwarf planets, the pull of gravity at its surface is only 1/10th the Earth's. Titan's surface gravity is lower than even the Moon's (which is 1/6th the Earth's), and yet Titan's diameter is about 50% larger than the Moon's.

Titan Exploration - Illustration - Titan's low surface gravity - Astronauts on the surface of Titan. On Saturn's satellite, gravity is lower than on the Moon, an astronaut weights ten times less than on Earth. While Titan is one of the largest terrestrial worlds in the Solar System, larger even than any of the known dwarf planets, the pull of gravity at its surface is only 1/10th the Earth's. Titan's surface gravity is lower than even the Moon's (which is 1/6th the Earth's), and yet Titan's diameter is about 50% larger than the Moon's.

Walter B Myers

PIX4626133

Spiral galaxy M31 in Andromede - M31, the Great galaxy in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral galaxy M31 in Andromede - M31, the Great galaxy in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

B&S.Fletcher

PIX4608702

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

S. Numazawa

PIX4608843

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Image made with an amateur instrument, a 130 mm bezel, several composite images. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Image made with an amateur instrument, a 130 mm bezel, several composite images. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Jerry Lodriguss

PIX4608685

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

R. Gendler

PIX4608810

Andromede Galaxy - The Andromeda Galaxy (M31) - The Andromede galaxy is located about 2.3 million light years away from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Andromede Galaxy - The Andromeda Galaxy (M31) - The Andromede galaxy is located about 2.3 million light years away from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Alex Conu

PIX4574285

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2.9 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2.9 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) in the center left, and M110 (NGC 205) below. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

R. Gendler

PIX4608783

Andromede Galaxy - Andromeda galaxy - The Andromede galaxy is located about 2.3 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Andromede Galaxy - Andromeda galaxy - The Andromede galaxy is located about 2.3 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left of the nucleus, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

PIX4608907

Artist's view of the New Horizons probe near Pluto - New Horizons over Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft approaches dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 15,000 miles from Pluto (upper right), 27,000 miles from its largest moon Charon (lower left) and 2.97 billion miles from the Earth. This side of the spacecraft on the left can be seen the Visibl

Artist's view of the New Horizons probe near Pluto - New Horizons over Pluto and Charon - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft approaches dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communication with the Earth. In this image the New Horizons spacecraft is about 15,000 miles from Pluto (upper right), 27,000 miles from its largest moon Charon (lower left) and 2.97 billion miles from the Earth. This side of the spacecraft on the left can be seen the Visibl

Walter B Myers

PIX4607323

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top center, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Image obtained with an apochromatic bezel Televue 127is. 22 hours of laying. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top center, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Image obtained with an apochromatic bezel Televue 127is. 22 hours of laying. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years

PIX4608828

Planetary nebula NGC 7027 in the Swan/HST - This NASA Hubble Space Telescope image of planetary nebula NGC 7027 shows remarkable new details of the process by which a star like the Sun dies. New features include: faint, blue, concentric shells surrounding the nebula; an extensive network of red dust clouds throughout the bright inner region; and the hot central white dwarf, visible as a white dot at the center. The nebula is a record of the star's final death throes. Initially the ejection of the star's outer layers, when it was at its red giant stage of evolution, occurred at a low rate and was spherical. The Hubble photo reveals that the initial ejections occurred episodically to produce the concentric shells. This culminated in a vigorous ejection of all of the remaining outer layers, which produced the bright inner regions. At this later stage the ejection was non - spherical, and dense clouds of dust condensed from the ejected material. NGC 7027 is located about 3,000 light - year

Planetary nebula NGC 7027 in the Swan/HST - This NASA Hubble Space Telescope image of planetary nebula NGC 7027 shows remarkable new details of the process by which a star like the Sun dies. New features include: faint, blue, concentric shells surrounding the nebula; an extensive network of red dust clouds throughout the bright inner region; and the hot central white dwarf, visible as a white dot at the center. The nebula is a record of the star's final death throes. Initially the ejection of the star's outer layers, when it was at its red giant stage of evolution, occurred at a low rate and was spherical. The Hubble photo reveals that the initial ejections occurred episodically to produce the concentric shells. This culminated in a vigorous ejection of all of the remaining outer layers, which produced the bright inner regions. At this later stage the ejection was non - spherical, and dense clouds of dust condensed from the ejected material. NGC 7027 is located about 3,000 light - year

PIX4623552

Planetary nebula Shapley 1 in the Rule - The planetary nebula Shapley 1 - This planetary nebula is located about 1000 years ago - light. Image obtained from the 3.9m telescope of Siding Spring This is an unusual annular planetary nebula in Norma. The nebula itself appears quite small at a little over an arc minute in diameter, while its central star is a magnitude 14 white dwarf. This object is unusual because those planetaries that are not bipolar are more or less spherical shells of material thrown off by the central star as it undergoes an internal rearrangement. We often see them as thick annuli because we look through a greater thickness at the edge of the shell. However, Shapley 1 seems to be a true torus, a doughnut - shaped ring of material that we happen to see face - on around the central star. Sp - 1 is about 1000 light years distant

Planetary nebula Shapley 1 in the Rule - The planetary nebula Shapley 1 - This planetary nebula is located about 1000 years ago - light. Image obtained from the 3.9m telescope of Siding Spring This is an unusual annular planetary nebula in Norma. The nebula itself appears quite small at a little over an arc minute in diameter, while its central star is a magnitude 14 white dwarf. This object is unusual because those planetaries that are not bipolar are more or less spherical shells of material thrown off by the central star as it undergoes an internal rearrangement. We often see them as thick annuli because we look through a greater thickness at the edge of the shell. However, Shapley 1 seems to be a true torus, a doughnut - shaped ring of material that we happen to see face - on around the central star. Sp - 1 is about 1000 light years distant

PIX4623906

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years. Cumulative exposure approximately 90 Hours

Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany it: M32 (NGC 221) at the top left, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years. Cumulative exposure approximately 90 Hours

R. Gendler

PIX4608801

Planetary nebula NGC 6543 in the Dragon - Planetary nebula NGC 6543 in Draco - Composite view of the planetary nebula NGC 6543 in the Dragon obtained by the Hubble space telescope and X-ray (blue) by the Chandra satellite. NGC 6543 is located about 3000 years of light from Earth. This composite of data from Nasa's Chandra X - ray Observatory and Hubble Space Telescope is a new look for NGC 6543, better known as the Cat's Eye nebula. This famous object is a so - called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now. When a star like the Sun begins to run out of fuel, it becomes what is known as a red giant. In this phase, a star sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures seen with optical telescopes

Planetary nebula NGC 6543 in the Dragon - Planetary nebula NGC 6543 in Draco - Composite view of the planetary nebula NGC 6543 in the Dragon obtained by the Hubble space telescope and X-ray (blue) by the Chandra satellite. NGC 6543 is located about 3000 years of light from Earth. This composite of data from Nasa's Chandra X - ray Observatory and Hubble Space Telescope is a new look for NGC 6543, better known as the Cat's Eye nebula. This famous object is a so - called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now. When a star like the Sun begins to run out of fuel, it becomes what is known as a red giant. In this phase, a star sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures seen with optical telescopes

PIX4623257

Exoplanete PSR B1620-26 b - Mathusalem - Exoplanet PSR B1620-26 b - Methuselah: PSR B1620-26 b, unofficially nicknamed Mathusalem is a circumbinary exoplanet of about 2.5 Jovian masses. It would be the oldest known planet, perhaps 13 billion years old. Discovered in 1993 around the binary system formed by PSR B1620-26 and WD B1620-26, respectively a pulsar and a white dwarf orbiting around each other. This system is approximately 12,400 light-years away from Earth in the M4 globular cluster of the constellation Scorpio. PSR B1620-26 b is an extrasolar planet located approximately 12,400 light-years away from Earth in the constellation of Scorpius. It bears the unofficial nickname “” Methuselah”” due to its extreme age. The planet is in a circumbinary orbit around a pulsar (PSR B1620-26) and a white dwarf (WD B1620-26)) and is the first circumbinary planet ever confirmed. It is also the first planet found in a globular cluster. The planet is one of the oldest known extrasolar planets, b

Exoplanete PSR B1620-26 b - Mathusalem - Exoplanet PSR B1620-26 b - Methuselah: PSR B1620-26 b, unofficially nicknamed Mathusalem is a circumbinary exoplanet of about 2.5 Jovian masses. It would be the oldest known planet, perhaps 13 billion years old. Discovered in 1993 around the binary system formed by PSR B1620-26 and WD B1620-26, respectively a pulsar and a white dwarf orbiting around each other. This system is approximately 12,400 light-years away from Earth in the M4 globular cluster of the constellation Scorpio. PSR B1620-26 b is an extrasolar planet located approximately 12,400 light-years away from Earth in the constellation of Scorpius. It bears the unofficial nickname “” Methuselah”” due to its extreme age. The planet is in a circumbinary orbit around a pulsar (PSR B1620-26) and a white dwarf (WD B1620-26)) and is the first circumbinary planet ever confirmed. It is also the first planet found in a globular cluster. The planet is one of the oldest known extrasolar planets, b

Miller, Ron (b.1947)

PIX4608526

Ultraviolet view of the galaxies M81 and M82 - Ultraviolet image of M81 and M82 - M81 (left) is a spiral galaxy. M82 (right) an irregular galaxy. Separated for about 150,000 light years, these two galaxies belong to the galaxy cluster closest to our local group. These galaxies are approximately 10 - 12 million light years away from Earth. In ultraviolet, the Galex satellite highlights star-forming regions. Ultraviolet image of Messier 81 and Messier 82 (NGC 3031 and 3034), a pair of galaxies lying 10 million light - years distant. The stars in M81 spiral arms have formed within the last 100 million years, as have most of the stars in a nearby dwarf galaxy just to the left of M81. GALEX reveals that star formation is occurring quite distant from the nucleus of M81 in the faint blue extensions to the brighter spiral arms. The upper half of the full GALEX field of view shows the remarkable star forming galaxy M82

Ultraviolet view of the galaxies M81 and M82 - Ultraviolet image of M81 and M82 - M81 (left) is a spiral galaxy. M82 (right) an irregular galaxy. Separated for about 150,000 light years, these two galaxies belong to the galaxy cluster closest to our local group. These galaxies are approximately 10 - 12 million light years away from Earth. In ultraviolet, the Galex satellite highlights star-forming regions. Ultraviolet image of Messier 81 and Messier 82 (NGC 3031 and 3034), a pair of galaxies lying 10 million light - years distant. The stars in M81 spiral arms have formed within the last 100 million years, as have most of the stars in a nearby dwarf galaxy just to the left of M81. GALEX reveals that star formation is occurring quite distant from the nucleus of M81 in the faint blue extensions to the brighter spiral arms. The upper half of the full GALEX field of view shows the remarkable star forming galaxy M82

PIX4610320

Globular cluster Terzan 5 in Sagittarius - Globular cluster Terzan 5 in Sagittarius - The globular cluster Terzan 5 is located in the constellation Sagittarius. Its stars are not all at the same time and show great age differences between 6 and 12 billion years. Image obtained by the Hubble Space Telescope (HST). Deep within the Milky Way lies the ancient globular cluster Terzan 5. This NASA/ESA Hubble Space Telescope image shows the cluster in wonderful detail, but it is the chaotic motions of its stars that make it particularly interesting to astronomers. Terzan 5 has an exceptionally dense core. As a result, it is thought to have one of the highest stellar collision rates for a globular cluster. And packed in at such close quarters, many stars are pushed so close together that they form tight binary systems. Interestingly, studies of individual stars within the cluster reveal that they can be split into two age groups: 6 and 12 billion years old. Some astronomers have hypothesised t

Globular cluster Terzan 5 in Sagittarius - Globular cluster Terzan 5 in Sagittarius - The globular cluster Terzan 5 is located in the constellation Sagittarius. Its stars are not all at the same time and show great age differences between 6 and 12 billion years. Image obtained by the Hubble Space Telescope (HST). Deep within the Milky Way lies the ancient globular cluster Terzan 5. This NASA/ESA Hubble Space Telescope image shows the cluster in wonderful detail, but it is the chaotic motions of its stars that make it particularly interesting to astronomers. Terzan 5 has an exceptionally dense core. As a result, it is thought to have one of the highest stellar collision rates for a globular cluster. And packed in at such close quarters, many stars are pushed so close together that they form tight binary systems. Interestingly, studies of individual stars within the cluster reveal that they can be split into two age groups: 6 and 12 billion years old. Some astronomers have hypothesised t

PIX4565214

Polaris - Illustration - Polaris System - Illustration - Polaris is a triple system composed of a supergiant star and two dwarf stars. It is a pulsating variable star, cepheide of low amplitude. This illustration shows the triple system of this star, Polaris A and Polaris Ab, and further on, his companion Polaris B. This is a view from within the Polaris triple star system. The North Star, Polaris A is a bright supergiant variable star.Just above Polaris is a small companion, Polaris Ab, which is 2 billion miles from Polaris. Much farther away, near the top of the illustration, is the wide companion Polaris B. Polaris B is located approximately 240 billion miles from Polaris A. The two companion stars are the same temperature as Polaris A, but are dwarf stars. The wide companion star is visible in small telescopes. It was first noticed by William Herschel in 1780. The close companion, Polaris Ab was known to exist from measurements of a wobble in Polaris, caused by the gravitational tu

Polaris - Illustration - Polaris System - Illustration - Polaris is a triple system composed of a supergiant star and two dwarf stars. It is a pulsating variable star, cepheide of low amplitude. This illustration shows the triple system of this star, Polaris A and Polaris Ab, and further on, his companion Polaris B. This is a view from within the Polaris triple star system. The North Star, Polaris A is a bright supergiant variable star.Just above Polaris is a small companion, Polaris Ab, which is 2 billion miles from Polaris. Much farther away, near the top of the illustration, is the wide companion Polaris B. Polaris B is located approximately 240 billion miles from Polaris A. The two companion stars are the same temperature as Polaris A, but are dwarf stars. The wide companion star is visible in small telescopes. It was first noticed by William Herschel in 1780. The close companion, Polaris Ab was known to exist from measurements of a wobble in Polaris, caused by the gravitational tu

PIX4572039

The Dawn probe orbiting around Ceres - Artist's view - Dawn in orbit around Ceres - Artist's view of the Dawn probe orbiting around the dwarf planet Ceres. In march 2015 the unmanned Dawn spacecraft is scheduled to arrive at the dwarf planet Ceres. The 65 foot long, 2.5 ton probe was launched from the Earth in 2007, passed March in 2009, and went into orbit around the protoplanet Vesta in July 2011 where it stayed until September 2012. Once in orbit around Ceres, Dawn is expected to operate for about a year making observations of this largest object in the asteroid belt. In this image Dawn is entering orbit around Ceres. In late November 2015 Dawn will descend to its closest orbit around Ceres at a distance of about 230 miles. While no close - up observations of yet been made of Ceres itself, here it is rendered as appearing similar to a much smaller version of the Earth's Moon, heavily cratered with the addition of surface water ice and hypothesized plumes of ice crystals from water g

The Dawn probe orbiting around Ceres - Artist's view - Dawn in orbit around Ceres - Artist's view of the Dawn probe orbiting around the dwarf planet Ceres. In march 2015 the unmanned Dawn spacecraft is scheduled to arrive at the dwarf planet Ceres. The 65 foot long, 2.5 ton probe was launched from the Earth in 2007, passed March in 2009, and went into orbit around the protoplanet Vesta in July 2011 where it stayed until September 2012. Once in orbit around Ceres, Dawn is expected to operate for about a year making observations of this largest object in the asteroid belt. In this image Dawn is entering orbit around Ceres. In late November 2015 Dawn will descend to its closest orbit around Ceres at a distance of about 230 miles. While no close - up observations of yet been made of Ceres itself, here it is rendered as appearing similar to a much smaller version of the Earth's Moon, heavily cratered with the addition of surface water ice and hypothesized plumes of ice crystals from water g

Walter B Myers

PIX4607275

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B in Canis Major - Sirius A and Sirius B in the Big Dog seen by the Hubble space telescope in February 2004. The brightest source in this image is Sirius A, the brightest star in the sky in visible light, here overexposed to his companion, Sirius B (lower left), a white dwarf star orbiting Sirius A in 50 years. Sirius is located 8.6 years of light from Earth. This Hubble Space Telescope image shows Sirius, the brightest star in our nighttime sky, along with its faint, tiny stellar companion, Sirius B. Astronomers overexposed the image of Sirius (at center) so that the dim Sirius B (tiny dot at lower left) could be seen. The cross - shaped diffraction spikes and concentric rings around Sirius, and the small ring around Sirius B, are artifacts produced within the telescope's imaging system. Sirius B is a white dwarf that orbits around Sirius every 50 years. Sirius, only 8.6 light - years from Earth, is the fifth closest star syst

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B in Canis Major - Sirius A and Sirius B in the Big Dog seen by the Hubble space telescope in February 2004. The brightest source in this image is Sirius A, the brightest star in the sky in visible light, here overexposed to his companion, Sirius B (lower left), a white dwarf star orbiting Sirius A in 50 years. Sirius is located 8.6 years of light from Earth. This Hubble Space Telescope image shows Sirius, the brightest star in our nighttime sky, along with its faint, tiny stellar companion, Sirius B. Astronomers overexposed the image of Sirius (at center) so that the dim Sirius B (tiny dot at lower left) could be seen. The cross - shaped diffraction spikes and concentric rings around Sirius, and the small ring around Sirius B, are artifacts produced within the telescope's imaging system. Sirius B is a white dwarf that orbits around Sirius every 50 years. Sirius, only 8.6 light - years from Earth, is the fifth closest star syst

PIX4571735

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