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'Comets', c 1860

'Comets', c 1860

UIS5096238

The Royal Observatory, Greenwich, London, mid 19th century

The Royal Observatory, Greenwich, London, mid 19th century

UIS5096033

The Royal Observatory, Greenwich, London, 1914

The Royal Observatory, Greenwich, London, 1914

UIS5095311

Sir Ernest Rutherford, New Zealand-British physicist, c 1910-1920

Sir Ernest Rutherford, New Zealand-British physicist, c 1910-1920

UIS5077545

Periodic Tables etc Chart of nuclides, late 20th century

Periodic Tables etc Chart of nuclides, late 20th century

UIS5066599

Periodic Tables etc Chart of nuclides, late 20th century

Periodic Tables etc Chart of nuclides, late 20th century

UIS5066610

Close up of the surface of Ganymede, one of the moons of Jupiter, 1979 This photograph taken by one of the two Voyager spacecraft shows impact craters and ejecta on the surface of Ganymede

Close up of the surface of Ganymede, one of the moons of Jupiter, 1979 This photograph taken by one of the two Voyager spacecraft shows impact craters and ejecta on the surface of Ganymede

UIS5071653

The comet of 1680

The comet of 1680

UIS5088246

The Royal Observatory, Greenwich, London, mid 19th century

The Royal Observatory, Greenwich, London, mid 19th century

UIS5096045

Galaxy Centaurus A (NGC 5128) x-ray view - radio - visible - Galaxy Centaurus A in different wavelengths - false-coloured view of the 30,000-year long jet - light escaping from the nucleus of the Centaurus A galaxy where a massive black hole is suspected. On this composite image obtained in X, radio, and visible, two large X-emission arcs surround this jet over a diameter of 25,000 years - light. These hot arcs could be the result of a gigantic explosion that occurred 10 million years ago in the nucleus of the galaxy. The galaxy NGC 5128 is located about 13 million light years away from Earth. A composite X - ray (blue), radio (pink and green), and optical (orange and yellow) image of the galaxy Centaurus A presents a stunning view of a galaxy in turmoil. A broad band of dust and cold gas is bisected at an angle by opposing jets of high - energy particles blasting away from the supermassive black hole in the nucleus. Two large arcs of X - ray emitting hot gas were discovered in the out

Galaxy Centaurus A (NGC 5128) x-ray view - radio - visible - Galaxy Centaurus A in different wavelengths - false-coloured view of the 30,000-year long jet - light escaping from the nucleus of the Centaurus A galaxy where a massive black hole is suspected. On this composite image obtained in X, radio, and visible, two large X-emission arcs surround this jet over a diameter of 25,000 years - light. These hot arcs could be the result of a gigantic explosion that occurred 10 million years ago in the nucleus of the galaxy. The galaxy NGC 5128 is located about 13 million light years away from Earth. A composite X - ray (blue), radio (pink and green), and optical (orange and yellow) image of the galaxy Centaurus A presents a stunning view of a galaxy in turmoil. A broad band of dust and cold gas is bisected at an angle by opposing jets of high - energy particles blasting away from the supermassive black hole in the nucleus. Two large arcs of X - ray emitting hot gas were discovered in the out

PIX4612202

Supernovae in the Galaxy of Hunting Dogs - Supernovae in M51 - On the left, image of the galaxy before the appearance of the supernovae, in the centre, with the supernova 2005CS (bright star in the center of the image, in the arm closest to the nucleus of the galaxy); the supernova 2005CS appeared in the galaxy of Hunting Dogs on June 28, 2005. On the right, with the supernova SN2011DH, which appeared on May 31, 2011. Here is a comparison showing the galaxy before (left) and after the supernovae events. The image in the centre shows the supernova 2005CS (which appeared in the galaxy M51 on June 28, 2005); the exploding star is the white dot at center of the image. The image at right shows the supernova SN2011dH, which appeared on May 31, 2011

Supernovae in the Galaxy of Hunting Dogs - Supernovae in M51 - On the left, image of the galaxy before the appearance of the supernovae, in the centre, with the supernova 2005CS (bright star in the center of the image, in the arm closest to the nucleus of the galaxy); the supernova 2005CS appeared in the galaxy of Hunting Dogs on June 28, 2005. On the right, with the supernova SN2011DH, which appeared on May 31, 2011. Here is a comparison showing the galaxy before (left) and after the supernovae events. The image in the centre shows the supernova 2005CS (which appeared in the galaxy M51 on June 28, 2005); the exploding star is the white dot at center of the image. The image at right shows the supernova SN2011dH, which appeared on May 31, 2011

R. Jay GaBany

PIX4582472

Close up of Ganymede, one of the moons of Jupiter, 1979

Close up of Ganymede, one of the moons of Jupiter, 1979

UIS5071200

Ganymede, largest of the moons of Jupiter, 1979 Jupiter has four main moons, which were discovered by Galileo, as well as many smaller ones (47Jovian moons are currently known)

Ganymede, largest of the moons of Jupiter, 1979 Jupiter has four main moons, which were discovered by Galileo, as well as many smaller ones (47Jovian moons are currently known)

UIS5071047

Supernovae in the Galaxy of Hunting Dogs - Supernovae in M51 - On the left, image of the galaxy before the appearance of the supernovae, in the centre, with the supernova 2005CS (bright star in the center of the image, in the arm closest to the nucleus of the galaxy); the supernova 2005CS appeared in the galaxy of Hunting Dogs on June 28, 2005. On the right, with the supernova SN2011DH, which appeared on May 31, 2011. Here is a comparison showing the galaxy before (left) and after the supernovae events. The image in the centre shows the supernova 2005CS (which appeared in the galaxy M51 on June 28, 2005); the exploding star is the white dot at center of the image. The image at right shows the supernova SN2011dH, which appeared on May 31, 2011

Supernovae in the Galaxy of Hunting Dogs - Supernovae in M51 - On the left, image of the galaxy before the appearance of the supernovae, in the centre, with the supernova 2005CS (bright star in the center of the image, in the arm closest to the nucleus of the galaxy); the supernova 2005CS appeared in the galaxy of Hunting Dogs on June 28, 2005. On the right, with the supernova SN2011DH, which appeared on May 31, 2011. Here is a comparison showing the galaxy before (left) and after the supernovae events. The image in the centre shows the supernova 2005CS (which appeared in the galaxy M51 on June 28, 2005); the exploding star is the white dot at center of the image. The image at right shows the supernova SN2011dH, which appeared on May 31, 2011

R. Jay GaBany

PIX4582470

Titan, one of the moons of Saturn, photographed by Voyager 2, 1981

Titan, one of the moons of Saturn, photographed by Voyager 2, 1981

UIS5071641

Irregular galaxy M82 in the Great Bear - Irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Irregular galaxy M82 in the Great Bear - Irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

PIX4610455

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

R. Gendler

PIX4610459

China: Lacquered wooden plaque showing the 'Big Dipper' or 'Plough' (Ursa Major; Ch. Beidouxing) surrounded by stellar constellations. Han Dynasty; Gansu; c. 2nd century BCE

China: Lacquered wooden plaque showing the 'Big Dipper' or 'Plough' (Ursa Major; Ch. Beidouxing) surrounded by stellar constellations. Han Dynasty; Gansu; c. 2nd century BCE

PFH1773905

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Jim Misti

PIX4610463

Irregular galaxy M82 in the Great Bear - Irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Irregular galaxy M82 in the Great Bear - Irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Adam Block

PIX4610464

View of the Bramante clocktower, Piazza Ducale, Vigevano, Province of Pavia, Lombardy, Italy (photo)

View of the Bramante clocktower, Piazza Ducale, Vigevano, Province of Pavia, Lombardy, Italy (photo)

MRZ3498864

Evolution of a giant blue star - Artist view - Death of a blue giant star - Artist view - Vue d'artiste de la mort d'une supergeante. After several million years of existence, the blue giant star (on the left) swell to become a red supergeante; its heart contracts and its weight heats, resulting in the evaporation of the outer layers of the star (in the centre). When the nucleus is empty of its energy, it compresses itself causing the explosion of the star (a supernova, on the right). This image shows steps in a celestial cataclysm. After several million years, a blue giant star (at left) is becoming a red supergiant (center). As the nuclear reaction within a giant star's core falters, the core collapses, triggering an intensely energetic rebound and the star explodes (a supernova, at right)

Evolution of a giant blue star - Artist view - Death of a blue giant star - Artist view - Vue d'artiste de la mort d'une supergeante. After several million years of existence, the blue giant star (on the left) swell to become a red supergeante; its heart contracts and its weight heats, resulting in the evaporation of the outer layers of the star (in the centre). When the nucleus is empty of its energy, it compresses itself causing the explosion of the star (a supernova, on the right). This image shows steps in a celestial cataclysm. After several million years, a blue giant star (at left) is becoming a red supergiant (center). As the nuclear reaction within a giant star's core falters, the core collapses, triggering an intensely energetic rebound and the star explodes (a supernova, at right)

PIX4583280

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. Image obtained with a 50 cm telescope, composite of several poses. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. Image obtained with a 50 cm telescope, composite of several poses. M82 is a prototypical irregular type galaxy located 12 million light years away in Ursa Major constellation. M82 is also the closest starburst galaxy to the Milky Way. As a starburst galaxy M82 shows a rate of star formation 10 times greater than our galaxy. Conditions for the starburst activity were believed triggered by a past close encounter with M81 between 300 and 600 million years ago

R. Jay GaBany

PIX4610441

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions visible on this image obtained by the space telescope are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Located 12 million light - years away, M82 appears high in the northern spring sky in the direction of the constellation Ursa Major, the Great Bear. It is also called the “” Cigar Galaxy”” because of the elliptical shape produced by the oblique tilt of its starry disk relative to our line of sight. This image is a six - image composite mosaic obtained with the Hubble space telescope in March 2006

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions visible on this image obtained by the space telescope are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Located 12 million light - years away, M82 appears high in the northern spring sky in the direction of the constellation Ursa Major, the Great Bear. It is also called the “” Cigar Galaxy”” because of the elliptical shape produced by the oblique tilt of its starry disk relative to our line of sight. This image is a six - image composite mosaic obtained with the Hubble space telescope in March 2006

PIX4610419

Elliptical galaxy NGC 1275 in Perseus

Elliptical galaxy NGC 1275 in Perseus

PIX5620129

Al-Rabad Castle (Ajloun Castle), 1184-1185, 12th Century A.D, fortified stone building

Al-Rabad Castle (Ajloun Castle), 1184-1185, 12th Century A.D, fortified stone building

Luca Mozzati

MEP1191566

Crab Nebula, c 2000

Crab Nebula, c 2000

UIS5104157

Spiral Galaxy M31 in Andromede - 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) on the left of the nucleus, and M110 (NGC 205) on the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Andromeda is the nearest major galaxy to our own Milky Way Galaxy. M31 is about 2.3 million light years far from us in the constellation Andromeda. It is the biggest member in our Local Group. Its diameter is more than 150,000 light years, compared to the Milky Way's 100,000 light years. M31 has two satellite galaxies: M110 (NGC 205) the elliptic galaxy at bottom and M32 (NGC 221), the bright star - like object at left of the nucleus

Spiral Galaxy M31 in Andromede - 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) on the left of the nucleus, and M110 (NGC 205) on the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. Andromeda is the nearest major galaxy to our own Milky Way Galaxy. M31 is about 2.3 million light years far from us in the constellation Andromeda. It is the biggest member in our Local Group. Its diameter is more than 150,000 light years, compared to the Milky Way's 100,000 light years. M31 has two satellite galaxies: M110 (NGC 205) the elliptic galaxy at bottom and M32 (NGC 221), the bright star - like object at left of the nucleus

Tom Davis

PIX4608890

Spiral galaxies NGC 1055 and NGC 1068 in the Whale - NGC 1055 and NGC 1068 spiral galaxies in Cetus - M77 (NGC 1068), bottom right: this active galaxy is a typical example of a galaxy of Seyfert II. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. NGC 1055, upper left, is a spiral galaxy seen by the slice. The field of this mosaic is about the size of the full moon. On bottom right, NGC 1068 (M77) at about 50 million light years away in the southern constellation of Cetus. It is a Seyfert 2 active galaxy with an active galactic nucleus and contains a massive black hole. On the top left, the edge - on NGC 1055 spiral galaxy. The mosaicked field is about the size of the full Moon

Spiral galaxies NGC 1055 and NGC 1068 in the Whale - NGC 1055 and NGC 1068 spiral galaxies in Cetus - M77 (NGC 1068), bottom right: this active galaxy is a typical example of a galaxy of Seyfert II. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. NGC 1055, upper left, is a spiral galaxy seen by the slice. The field of this mosaic is about the size of the full moon. On bottom right, NGC 1068 (M77) at about 50 million light years away in the southern constellation of Cetus. It is a Seyfert 2 active galaxy with an active galactic nucleus and contains a massive black hole. On the top left, the edge - on NGC 1055 spiral galaxy. The mosaicked field is about the size of the full Moon

R. Gendler

PIX4609610

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

Jet of the Galaxy Centaurus A (NGC 5128) seen in X-rays - Galaxy Centaurus A X - ray jet - View in false colours of a 30 000-year long jet - light that escapes from the nucleus of the Galaxy Centaurus A where a massive black hole is suspected. The galaxy NGC 5128 is located about 13 million light years away from Earth. Image obtained by the Chandra Space Telescope in May 2000. Chandra space telescope detects a jet emanating from the NGC 5128 core and numerous point - like X - ray sources, all bathed in diffuse X - rays produced by several - million - degree gas that fills the galaxy. It is believed that most of these sources are X - ray binaries in which a neutron star or stellar - sized black hole is accreting matter from a nearby companion star. The Cen A image was created from Chandra observations taken on December 5, 1999 and May 17, 2000

Jet of the Galaxy Centaurus A (NGC 5128) seen in X-rays - Galaxy Centaurus A X - ray jet - View in false colours of a 30 000-year long jet - light that escapes from the nucleus of the Galaxy Centaurus A where a massive black hole is suspected. The galaxy NGC 5128 is located about 13 million light years away from Earth. Image obtained by the Chandra Space Telescope in May 2000. Chandra space telescope detects a jet emanating from the NGC 5128 core and numerous point - like X - ray sources, all bathed in diffuse X - rays produced by several - million - degree gas that fills the galaxy. It is believed that most of these sources are X - ray binaries in which a neutron star or stellar - sized black hole is accreting matter from a nearby companion star. The Cen A image was created from Chandra observations taken on December 5, 1999 and May 17, 2000

PIX4612176

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

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

Active galaxy NGC 1068 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is about 45 million years ago - light from Earth. Image obtained with the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope has captured this vivid image of spiral galaxy Messier 77 - - a galaxy in the constellation of Cetus, some 45 million light - years away from us. The streaks of red and blue in the image highlight pockets of star formation along the pinwheeling arms, with dark dust lanes stretching across the galaxy's starry centre. The galaxy belongs to a class of galaxies known as Seyfert galaxies, which have highly ionised gas surrounding an intensely active centre

Active galaxy NGC 1068 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is about 45 million years ago - light from Earth. Image obtained with the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope has captured this vivid image of spiral galaxy Messier 77 - - a galaxy in the constellation of Cetus, some 45 million light - years away from us. The streaks of red and blue in the image highlight pockets of star formation along the pinwheeling arms, with dark dust lanes stretching across the galaxy's starry centre. The galaxy belongs to a class of galaxies known as Seyfert galaxies, which have highly ionised gas surrounding an intensely active centre

PIX4609613

Codex Arundel, MS 263 f.229v, Notes, displayed as an open bifolium with f. 226: text page, 1503 (pen & ink on paper)

Codex Arundel, MS 263 f.229v, Notes, displayed as an open bifolium with f. 226: text page, 1503 (pen & ink on paper)

Vinci, Leonardo da (1452-1519)

BL3067821

Galaxy NGC 17 in the Whale - Galaxy NGC 17 in Cetus - The galaxy NGC 17 is located about 250 million years away from Earth. Presented with a single nucleus, its shape indicates that it has finished absorbing another galaxy. Image obtained by the Hubble Space Telescope on 4 July 2002. This galaxy features a single nucleus, a containing a blue central disk with delicate fine structure in the outer parts and tidal tails indicative of two former disk galaxies. At present these galaxies appear to have completed their merger. The remnant shows clear signs that the merger was gas - rich and accompanied by a starburst. NGC 17 is gas - rich and can sustain its strong central starburst and present mild central activity for some time to come. NGC 17 is located about 250 million light - years away in the constellation of Cetus, the Whale. Image taken by the Hubble space telescope on july 4, 2002

Galaxy NGC 17 in the Whale - Galaxy NGC 17 in Cetus - The galaxy NGC 17 is located about 250 million years away from Earth. Presented with a single nucleus, its shape indicates that it has finished absorbing another galaxy. Image obtained by the Hubble Space Telescope on 4 July 2002. This galaxy features a single nucleus, a containing a blue central disk with delicate fine structure in the outer parts and tidal tails indicative of two former disk galaxies. At present these galaxies appear to have completed their merger. The remnant shows clear signs that the merger was gas - rich and accompanied by a starburst. NGC 17 is gas - rich and can sustain its strong central starburst and present mild central activity for some time to come. NGC 17 is located about 250 million light - years away in the constellation of Cetus, the Whale. Image taken by the Hubble space telescope on july 4, 2002

PIX4608587

Spiral galaxy M81 infrared view - Spiral galaxy M81 seen in infrared - View obtained by Spitzer space telescope in different wavelengths. In infrared, Spitzer sees dust rather than stars, thus improving our understanding of star formation. The M81 spiral galaxy is located 12 million light years away from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. Located in the northern constellation of Ursa Major (which also includes the Big Dipper), this galaxy is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light - years. These infrared images were obtained by Spitzer's infrared array camera. At these wavelengths, Spitzer sees the dust, rather than the stars, within the disc of silicates and carbonaceous grains. It is well - mixed with gas, which is best seen at radio wavelengths, to form the essential ingredients for future star formation

Spiral galaxy M81 infrared view - Spiral galaxy M81 seen in infrared - View obtained by Spitzer space telescope in different wavelengths. In infrared, Spitzer sees dust rather than stars, thus improving our understanding of star formation. The M81 spiral galaxy is located 12 million light years away from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. Located in the northern constellation of Ursa Major (which also includes the Big Dipper), this galaxy is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light - years. These infrared images were obtained by Spitzer's infrared array camera. At these wavelengths, Spitzer sees the dust, rather than the stars, within the disc of silicates and carbonaceous grains. It is well - mixed with gas, which is best seen at radio wavelengths, to form the essential ingredients for future star formation

PIX4610385

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - M77 (NGC 1068) This active galaxy is a typical example of a galaxy in Seyfert II. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. M77 is an archetypical example of a Seyfert type II galaxy and the brightest galaxy of its class. M77 is a large galaxy and together with its faint outer spiral arms may extend up to 170,000 light years across. It is located about 50 million light years away in Cetus constellation. In contrast to a normal galactic nucleus the energy released from the Seyfert nucleus arises from a nonstellar source. The central engine of the Seyfert nucleus (and all AGN) is believed to be an accretion disk that continuously drops matter into a supermassive black hole

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - M77 (NGC 1068) This active galaxy is a typical example of a galaxy in Seyfert II. It has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. M77 is an archetypical example of a Seyfert type II galaxy and the brightest galaxy of its class. M77 is a large galaxy and together with its faint outer spiral arms may extend up to 170,000 light years across. It is located about 50 million light years away in Cetus constellation. In contrast to a normal galactic nucleus the energy released from the Seyfert nucleus arises from a nonstellar source. The central engine of the Seyfert nucleus (and all AGN) is believed to be an accretion disk that continuously drops matter into a supermassive black hole

Jim Misti

PIX4609594

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. A black hole resides in the center of the galaxy. The M81 galaxy is about 12 million light - years away. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The galaxy's central bulge contains much older, redder stars. It is significantly larger than the Milky Way's bulge. A black hole of 70 million solar masses resides at the center of M81. The black hole is about 15 times the mass of the Milky Way's black hole

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. A black hole resides in the center of the galaxy. The M81 galaxy is about 12 million light - years away. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The galaxy's central bulge contains much older, redder stars. It is significantly larger than the Milky Way's bulge. A black hole of 70 million solar masses resides at the center of M81. The black hole is about 15 times the mass of the Milky Way's black hole

Jim Misti

PIX4610337

Interacting galaxies NGC 3256 - Interacting galaxies NGC 3256 - The special galaxy NGC 3256 is located about 100 million light years away from Earth in the southern constellation of Sails. A vestige of the collision of two galaxies, this system presents a double nucleus and many young clusters of stars. Image obtained by the Hubble Space Telescope on November 5, 2001. NGC 3256 is an impressive example of a peculiar galaxy that is actually the relict of a collision of two separate galaxies that took place in a distant past. The telltale signs of the collision are two extended luminous tails swirling out from the galaxy. NGC 3256 belongs to the Hydra - Centaurus supercluster complex and provides a nearby template for studying the properties of young star clusters in tidal tails. The system hides a double nucleus and a tangle of dust lanes in the central region. The tails are studded with a particularly high density of star clusters. Image taken by the Hubble space telescope on November 5

Interacting galaxies NGC 3256 - Interacting galaxies NGC 3256 - The special galaxy NGC 3256 is located about 100 million light years away from Earth in the southern constellation of Sails. A vestige of the collision of two galaxies, this system presents a double nucleus and many young clusters of stars. Image obtained by the Hubble Space Telescope on November 5, 2001. NGC 3256 is an impressive example of a peculiar galaxy that is actually the relict of a collision of two separate galaxies that took place in a distant past. The telltale signs of the collision are two extended luminous tails swirling out from the galaxy. NGC 3256 belongs to the Hydra - Centaurus supercluster complex and provides a nearby template for studying the properties of young star clusters in tidal tails. The system hides a double nucleus and a tangle of dust lanes in the central region. The tails are studded with a particularly high density of star clusters. Image taken by the Hubble space telescope on November 5

PIX4610539

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind (visible in red). Image obtained by the 3.5m WIYN telescope at Kitt Peak and completed by data obtained by the Hubble space telescope. This image is a color - coded picture of the archetypal starburst galaxy M82. It shows the horizontal stellar disk of the galaxy, which harbors its active star formation, and a perpendicular supergalactic wind of ionized gas powered by the energy released in the starburst. To make this image, data from the WIYN 3.5 - meter telescope on Kitt Peak were combined with data from the WFPC2 camera on the Hubble Space Telescope. Purple represents e

Irregular Galaxy M82 in the Great Bear - The irregular galaxy M82 in Ursa Major - M82 is an irregular galaxy distant about 12 million years - light of the Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind (visible in red). Image obtained by the 3.5m WIYN telescope at Kitt Peak and completed by data obtained by the Hubble space telescope. This image is a color - coded picture of the archetypal starburst galaxy M82. It shows the horizontal stellar disk of the galaxy, which harbors its active star formation, and a perpendicular supergalactic wind of ionized gas powered by the energy released in the starburst. To make this image, data from the WIYN 3.5 - meter telescope on Kitt Peak were combined with data from the WFPC2 camera on the Hubble Space Telescope. Purple represents e

PIX4610403

Galaxies NGC 3718 in the Great Bear - Galaxy NGC 3718 in Ursa Major - NGC 3718 (Arp 214) is a special galaxy located about 42 million years ago - light from the Earth in the constellation Big Bear. It's an active nucleus galaxy. Its tormented form is probably due to the attraction exerted by another galaxy, NGC 3729 (off-field). On the right, Arp 322 (or Hickson 56), is a group of 5 galaxies far farther away, located about 300 million years from Earth. NGC 3718 (Arp 214) seems to have a rudimentary bar and spiral structure although it is recognized as a peculiar galaxy and as such is listed within ARP's Atlas of Peculiar Galaxies. NGC 3718 contains an active galactic nucleus (AGN) and is known as a Seyfert type 1.9 galaxy. Its strange shape is probably due to a gravitational interaction with its companion NGC 3729 (out of field). A grouping of 5 background galaxies 300 million light years distant are projected at right of NGC 3718 and are designated Arp 322 (also Hickson 56). Several m

Galaxies NGC 3718 in the Great Bear - Galaxy NGC 3718 in Ursa Major - NGC 3718 (Arp 214) is a special galaxy located about 42 million years ago - light from the Earth in the constellation Big Bear. It's an active nucleus galaxy. Its tormented form is probably due to the attraction exerted by another galaxy, NGC 3729 (off-field). On the right, Arp 322 (or Hickson 56), is a group of 5 galaxies far farther away, located about 300 million years from Earth. NGC 3718 (Arp 214) seems to have a rudimentary bar and spiral structure although it is recognized as a peculiar galaxy and as such is listed within ARP's Atlas of Peculiar Galaxies. NGC 3718 contains an active galactic nucleus (AGN) and is known as a Seyfert type 1.9 galaxy. Its strange shape is probably due to a gravitational interaction with its companion NGC 3729 (out of field). A grouping of 5 background galaxies 300 million light years distant are projected at right of NGC 3718 and are designated Arp 322 (also Hickson 56). Several m

Jim Misti

PIX4610955

Markarian Galaxy 273 - Galaxy Markarian 273 - The Markarian galaxy 273 is about 500 million light years away from Earth in the constellation of the Great Bear. The presence of a 130,000-year-long maree tail suggests that Markarian 273 is the fusion of two galaxies. The collision caused a burst of star formations. This galaxy has a double core and is one of the brightest infrared galaxies. Image obtained by the Hubble Space Telescope on November 16, 2001. Markarian 273 shows an intricate central region and a striking tail that extends diagonally towards the bottom - right of the image. The tail is about 130 thousand light - years long and is strongly indicative of a merger between two galaxies. Markarian 273 has an intense region of starburst, where 60 solar masses of new stars are born each year. Near - infrared observations reveal a nucleus with two components. Markarian 273 is one of the most luminous galaxies when observed in the infrared, and is located 500 million light - years aw

Markarian Galaxy 273 - Galaxy Markarian 273 - The Markarian galaxy 273 is about 500 million light years away from Earth in the constellation of the Great Bear. The presence of a 130,000-year-long maree tail suggests that Markarian 273 is the fusion of two galaxies. The collision caused a burst of star formations. This galaxy has a double core and is one of the brightest infrared galaxies. Image obtained by the Hubble Space Telescope on November 16, 2001. Markarian 273 shows an intricate central region and a striking tail that extends diagonally towards the bottom - right of the image. The tail is about 130 thousand light - years long and is strongly indicative of a merger between two galaxies. Markarian 273 has an intense region of starburst, where 60 solar masses of new stars are born each year. Near - infrared observations reveal a nucleus with two components. Markarian 273 is one of the most luminous galaxies when observed in the infrared, and is located 500 million light - years aw

PIX4613690

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained with a telescope of 50 cm and more than 17 hours of installation. Located about 60 million light years from Earth, towards the direction of the constellation named Cetus, is an enormous galaxy, much larger than our own, that is surrounded by a even larger cloud of obscuring dust. M77 (NGC 1068) has a powerful jet pouring copious amounts of material into inter - galactic space at enormous speed. This galaxy is a seyfert II type with an active nucleus. It is now believed that the source of this commotion is a super - massive black hole, ten million times more massive than our Sun, in the process of absorbing material that has ventured too close

Spiral galaxy M77 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained with a telescope of 50 cm and more than 17 hours of installation. Located about 60 million light years from Earth, towards the direction of the constellation named Cetus, is an enormous galaxy, much larger than our own, that is surrounded by a even larger cloud of obscuring dust. M77 (NGC 1068) has a powerful jet pouring copious amounts of material into inter - galactic space at enormous speed. This galaxy is a seyfert II type with an active nucleus. It is now believed that the source of this commotion is a super - massive black hole, ten million times more massive than our Sun, in the process of absorbing material that has ventured too close

R. Jay GaBany

PIX4609596

China: Xiang Ying (c. 1895-1941) was a war-time Chinese communist leader reaching the rank of political chief of staff of the New Fourth Army during World War II. He was assassinated by a member of his staff in 1941

China: Xiang Ying (c. 1895-1941) was a war-time Chinese communist leader reaching the rank of political chief of staff of the New Fourth Army during World War II. He was assassinated by a member of his staff in 1941

PFH2635742

Spiral galaxy NGC 2997 in the Pneumatic Machine - Spiral galaxy NGC 2997 in Antlia - NGC 2997 is a spiral galaxy distant about 55 million years - light. NGC 2997 seems to be a galaxy seen from the front but in reality is inclined by about 45 degrees. Its arms are home to large star-forming regions while its core is surrounded by much older yellow stars. The disc of NGC 2997 is inclined at about 45 degrees to our line of sight, revealing its internal structure and giving the galaxy an oval appearance. Like most spirals, the galaxy has two prominent spiral arms, which appear to originate in the yellow nucleus, are peppered with bright red blobs of ionised hydrogen which are similar to regions of star formation in our own Milky Way. Within these gas clouds are produced the hot blue stars which generate most of the light in the arms of the galaxy. A much older population of yellowish stars are concentrated around the nucleus. NGC 2997 is located about 55 million light year from us

Spiral galaxy NGC 2997 in the Pneumatic Machine - Spiral galaxy NGC 2997 in Antlia - NGC 2997 is a spiral galaxy distant about 55 million years - light. NGC 2997 seems to be a galaxy seen from the front but in reality is inclined by about 45 degrees. Its arms are home to large star-forming regions while its core is surrounded by much older yellow stars. The disc of NGC 2997 is inclined at about 45 degrees to our line of sight, revealing its internal structure and giving the galaxy an oval appearance. Like most spirals, the galaxy has two prominent spiral arms, which appear to originate in the yellow nucleus, are peppered with bright red blobs of ionised hydrogen which are similar to regions of star formation in our own Milky Way. Within these gas clouds are produced the hot blue stars which generate most of the light in the arms of the galaxy. A much older population of yellowish stars are concentrated around the nucleus. NGC 2997 is located about 55 million light year from us

PIX4610295

Spiral galaxy NGC 2997 in the Pneumatic Machine - Spiral galaxy NGC 2997 in Antlia - NGC 2997 is a spiral galaxy distant about 55 million years - light. NGC 2997 seems to be a galaxy seen from the front but in reality is inclined by about 45 degrees. Its arms are home to large star-forming regions while its core is surrounded by much older yellow stars. The disc of NGC 2997 is inclined at about 45 degrees to our line of sight, revealing its internal structure and giving the galaxy an oval appearance. Like most spirals, the galaxy has two prominent spiral arms, which appear to originate in the yellow nucleus, are peppered with bright red blobs of ionised hydrogen which are similar to regions of star formation in our own Milky Way. Within these gas clouds are produced the hot blue stars which generate most of the light in the arms of the galaxy. A much older population of yellowish stars are concentrated around the nucleus. NGC 2997 is located in the southern constellation of Antlia, abo

Spiral galaxy NGC 2997 in the Pneumatic Machine - Spiral galaxy NGC 2997 in Antlia - NGC 2997 is a spiral galaxy distant about 55 million years - light. NGC 2997 seems to be a galaxy seen from the front but in reality is inclined by about 45 degrees. Its arms are home to large star-forming regions while its core is surrounded by much older yellow stars. The disc of NGC 2997 is inclined at about 45 degrees to our line of sight, revealing its internal structure and giving the galaxy an oval appearance. Like most spirals, the galaxy has two prominent spiral arms, which appear to originate in the yellow nucleus, are peppered with bright red blobs of ionised hydrogen which are similar to regions of star formation in our own Milky Way. Within these gas clouds are produced the hot blue stars which generate most of the light in the arms of the galaxy. A much older population of yellowish stars are concentrated around the nucleus. NGC 2997 is located in the southern constellation of Antlia, abo

PIX4610276

Active galaxy NGC 1068 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained with a telescope 61 cm in diameter. Located about 60 million light years from Earth, towards the direction of the constellation named Cetus, is an enormous galaxy, much larger than our own, that is surrounded by a even larger cloud of obscuring dust. M77 (NGC 1068) has a powerful jet pouring copious amounts of material into inter - galactic space at enormous speed. This galaxy is a seyfert II type with an active nucleus. It is now believed that the source of this conmotion is a super - massive black hole, ten million times more massive than our Sun, in the process of absorbing material that has ventured too close. Image taken with a 24 - inch

Active galaxy NGC 1068 in the Whale - Active galaxy M77 (NGC 1068) in Cetus - This active galaxy is the typical example of a galaxy of Seyfert II. M77 (NGC 1068) has an active core and houses a massive black hole. She is the object of intense star formation in her spiral arms. NGC 1068 is around 50 million years of light from Earth. Image obtained with a telescope 61 cm in diameter. Located about 60 million light years from Earth, towards the direction of the constellation named Cetus, is an enormous galaxy, much larger than our own, that is surrounded by a even larger cloud of obscuring dust. M77 (NGC 1068) has a powerful jet pouring copious amounts of material into inter - galactic space at enormous speed. This galaxy is a seyfert II type with an active nucleus. It is now believed that the source of this conmotion is a super - massive black hole, ten million times more massive than our Sun, in the process of absorbing material that has ventured too close. Image taken with a 24 - inch

Adam Block

PIX4609602

Barree spiral galaxy NGC 1097 - NGC 1097, a barred spiral galaxy and elliptical companion - Located at a distance of about 45 million years - light in the constellation of the Furnneau, NGC 1097 is subject to intense star formation and is an active nucleus galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by Siding Spring's 3.9m telescope. NGC 1097 is a fine, barred spiral galaxy seen from a distance of about 50 million light years. The galaxy is unusual in several respects. It is a fairly strong radio source and is also bright at far infrared wavelenghts, indicating the presence of warm dust. The galaxy is also interacting woth a small elliptical galaxy, seen in the upper right (NW) corner of the picture. This galaxy shows the subtle interleaved 'shells' or stepped changes in brightness resulting from the interaction. Finally, the galaxy is k

Barree spiral galaxy NGC 1097 - NGC 1097, a barred spiral galaxy and elliptical companion - Located at a distance of about 45 million years - light in the constellation of the Furnneau, NGC 1097 is subject to intense star formation and is an active nucleus galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by Siding Spring's 3.9m telescope. NGC 1097 is a fine, barred spiral galaxy seen from a distance of about 50 million light years. The galaxy is unusual in several respects. It is a fairly strong radio source and is also bright at far infrared wavelenghts, indicating the presence of warm dust. The galaxy is also interacting woth a small elliptical galaxy, seen in the upper right (NW) corner of the picture. This galaxy shows the subtle interleaved 'shells' or stepped changes in brightness resulting from the interaction. Finally, the galaxy is k

PIX4609643

Ceremonial Cross of Countess Gertrude, Lower Saxony, c.1038, Reliquary Bag, 1200s and Ceremonial Cross of Count Liudolf, shortly after 1038 (mixed media)

Ceremonial Cross of Countess Gertrude, Lower Saxony, c.1038, Reliquary Bag, 1200s and Ceremonial Cross of Count Liudolf, shortly after 1038 (mixed media)

European School

XCL491168

Galaxies NGC 3718 and NGC 3729 in Ursa Major

Galaxies NGC 3718 and NGC 3729 in Ursa Major

Adam Block

PIX4610936

Spiral Galaxy M51 in Hunting Dogs and Supernova - The Whirlpool Galaxy (M51) in Canes Venatici with SN 2005cs - The spiral galaxy M51 (NGC 5194) is located about 37 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. On June 28, 2005 a supernova of type II appeared in M51; this supernova (SN 2005cs) is visible just under the nucleus, in the first arm. Image obtained with two telescopes of 50 cm and 30 cm, composite of several poses. The Whirlpool Galaxy lies approximately 31 million light years from earth. This spectacular galaxy is paired with a smaller, more distant companion whose matter is being disrupted by the larger spiral in a gravitational tug of war. Eventually, the shape of both will be altered over many more millions of years. On June 28, 2005, a new star was noticed in this galaxy. It was confirmed to be a bright supernova, one of the brightest in recent years and similar to the brightest superno

Spiral Galaxy M51 in Hunting Dogs and Supernova - The Whirlpool Galaxy (M51) in Canes Venatici with SN 2005cs - The spiral galaxy M51 (NGC 5194) is located about 37 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. On June 28, 2005 a supernova of type II appeared in M51; this supernova (SN 2005cs) is visible just under the nucleus, in the first arm. Image obtained with two telescopes of 50 cm and 30 cm, composite of several poses. The Whirlpool Galaxy lies approximately 31 million light years from earth. This spectacular galaxy is paired with a smaller, more distant companion whose matter is being disrupted by the larger spiral in a gravitational tug of war. Eventually, the shape of both will be altered over many more millions of years. On June 28, 2005, a new star was noticed in this galaxy. It was confirmed to be a bright supernova, one of the brightest in recent years and similar to the brightest superno

R. Jay GaBany

PIX4612380

Captain Peter Heywood (1773-1831), 1822 (oil on canvas)

Captain Peter Heywood (1773-1831), 1822 (oil on canvas)

Simpson, John (1782-1847)

MMM7337935

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescope towards the constellation of Pisces, the Fish, having the appear

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescope towards the constellation of Pisces, the Fish, having the appear

Adam Block

PIX4609250

Small Sword, c.1780 (forged steel blade; partially gilt & russet steel hilt; steel wire, leather bands, wood core)

Small Sword, c.1780 (forged steel blade; partially gilt & russet steel hilt; steel wire, leather bands, wood core)

French School, (18th century)

XCL499852

Andromede Galaxy (M31) view in ultraviolet - The Andromeda galaxy seen in UV - This ultraviolet image is a mosaic of 10 images obtained by the GALEX satellite in September and October 2003. Regions of blue stars, young, warm and massive stars are clearly visible in the arms, where the stars are formed; in the center near the core, colder, orange-white, much older stars. The stars visible in the foreground belong to our Lactee Way. The GALEX observation of the large galaxy in Andromeda, Messier 31, was performed during September and October 2003. The image is a mosaic of 10 separate GALEX images combining the Far UV (colored blue) and Near UV detector (colored red) images together to make a color image of the sky almost six full moons across. The Andromeda galaxy is the most massive in the local group of galaxies, which includes our Milky Way, and is the nearest large galaxy to our own. The GALEX image shows blue regions of young, hot, high mass stars tracing out the spiral arms where s

Andromede Galaxy (M31) view in ultraviolet - The Andromeda galaxy seen in UV - This ultraviolet image is a mosaic of 10 images obtained by the GALEX satellite in September and October 2003. Regions of blue stars, young, warm and massive stars are clearly visible in the arms, where the stars are formed; in the center near the core, colder, orange-white, much older stars. The stars visible in the foreground belong to our Lactee Way. The GALEX observation of the large galaxy in Andromeda, Messier 31, was performed during September and October 2003. The image is a mosaic of 10 separate GALEX images combining the Far UV (colored blue) and Near UV detector (colored red) images together to make a color image of the sky almost six full moons across. The Andromeda galaxy is the most massive in the local group of galaxies, which includes our Milky Way, and is the nearest large galaxy to our own. The GALEX image shows blue regions of young, hot, high mass stars tracing out the spiral arms where s

PIX4608970

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. Image obtained by the Hubble Space Telescope on October 22, 2004. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescop

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. Image obtained by the Hubble Space Telescope on October 22, 2004. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescop

PIX4609218

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate

R. Gendler

PIX4610379

Spiral Galaxy NGC 1566 in the Dorado - The Seyfert Galaxy NGC 1566 - NGC 1566 is a spiral galaxy located about 50 million years ago - light. Its core is very bright. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image made with Siding Spring's 3.9m telescope. NGC 1566 is the brightest member of a nearby group of galaxies in Dorado and is at a distance of about 50 million light years. It has beautifully symmetrical, tightly - wound spiral arms, which on deep images appear to almost encircle the galaxy. This striking galaxy is also of interest because it has a very luminous nucleus which has many of the characteristics of a quasar, though it is much less energetic. Galaxies of this type are known as Seyfert galaxies, after Carl Seyfert who first recognised their peculiar nature in 1943. The active region at the centre of NGC 1566 has recently been found to vary on a timescale of less than a month, which indicates that it is extremely compact. Spe

Spiral Galaxy NGC 1566 in the Dorado - The Seyfert Galaxy NGC 1566 - NGC 1566 is a spiral galaxy located about 50 million years ago - light. Its core is very bright. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image made with Siding Spring's 3.9m telescope. NGC 1566 is the brightest member of a nearby group of galaxies in Dorado and is at a distance of about 50 million light years. It has beautifully symmetrical, tightly - wound spiral arms, which on deep images appear to almost encircle the galaxy. This striking galaxy is also of interest because it has a very luminous nucleus which has many of the characteristics of a quasar, though it is much less energetic. Galaxies of this type are known as Seyfert galaxies, after Carl Seyfert who first recognised their peculiar nature in 1943. The active region at the centre of NGC 1566 has recently been found to vary on a timescale of less than a month, which indicates that it is extremely compact. Spe

PIX4609942

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. Image obtained with a 50 cm telescope through different filters, total of different poses: 20h. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral gala

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. Image obtained with a 50 cm telescope through different filters, total of different poses: 20h. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral gala

R. Gendler

PIX4610335

Galaxies NGC 3718 and NGC 3729 in the Great Bear - Galaxies NGC 3718 and NGC 3729 in Ursa Major - NGC 3718 is a special galaxy located about 42 million years ago - light from Earth in the constellation of the Great Bear. It's an active nucleus galaxy. Its tormented shape is probably due to the attraction exerted by another galaxy, NGC 3729, visible to its left. To the south, Arp 322 (or Hickson 56), is a group of 5 galaxies far farther away, located about 300 million light years away from Earth. NGC 3718 and its companion NGC 3729 (left) are physically related members of the Ursa Major galaxy cluster. The two galaxies appear to orbit each other at a projected separation of 147,000 light years. NGC 3718 (Arp 214) seems to have a rudimentary bar and spiral structure although it is recognized as a peculiar galaxy and as such is listed within ARP's Atlas of Peculiar Galaxies. NGC 3718 contains an active galactic nucleus (AGN) and is known as a Seyfert type 1.9 galaxy. Its strange shape is

Galaxies NGC 3718 and NGC 3729 in the Great Bear - Galaxies NGC 3718 and NGC 3729 in Ursa Major - NGC 3718 is a special galaxy located about 42 million years ago - light from Earth in the constellation of the Great Bear. It's an active nucleus galaxy. Its tormented shape is probably due to the attraction exerted by another galaxy, NGC 3729, visible to its left. To the south, Arp 322 (or Hickson 56), is a group of 5 galaxies far farther away, located about 300 million light years away from Earth. NGC 3718 and its companion NGC 3729 (left) are physically related members of the Ursa Major galaxy cluster. The two galaxies appear to orbit each other at a projected separation of 147,000 light years. NGC 3718 (Arp 214) seems to have a rudimentary bar and spiral structure although it is recognized as a peculiar galaxy and as such is listed within ARP's Atlas of Peculiar Galaxies. NGC 3718 contains an active galactic nucleus (AGN) and is known as a Seyfert type 1.9 galaxy. Its strange shape is

R. Gendler

PIX4610948

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major: The spiral galaxy M81 is located 12 million light years from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. - M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate much

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major: The spiral galaxy M81 is located 12 million light years from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. - M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate much

PIX4610399

Galaxy M82 in the Great Bear seen in X-rays - The galaxy M82 seen in X-ray - Image obtained by Chandra in X-rays, reveals a cloud (in red) of very hot gas of several million degres emitted from the central regions of the galaxy. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Chandra's X - ray image reveals gas that has been heated to millions of degrees by the violent outflow of matter blasting out of the galaxy. The eruption can be traced back to the central regions of the galaxy where stars are forming at a furious rate, some 10 times faster than in the Milky Way Galaxy. Many of these newly formed stars are very massive and race through their evolution to explode as supernovas. Vigorous mass loss f

Galaxy M82 in the Great Bear seen in X-rays - The galaxy M82 seen in X-ray - Image obtained by Chandra in X-rays, reveals a cloud (in red) of very hot gas of several million degres emitted from the central regions of the galaxy. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Chandra's X - ray image reveals gas that has been heated to millions of degrees by the violent outflow of matter blasting out of the galaxy. The eruption can be traced back to the central regions of the galaxy where stars are forming at a furious rate, some 10 times faster than in the Milky Way Galaxy. Many of these newly formed stars are very massive and race through their evolution to explode as supernovas. Vigorous mass loss f

PIX4610440

Interacting galaxies Markarian 533 - Interacting galaxies Markarian 533 - The galaxy NGC 7674 (Markarian 533 or Arp 182) is located about 400 million years ago - light from Earth in the constellation Pegase. It is the most important member of a group of galaxies called Hickson 96 (HCG 96). This spiral galaxy seen from the front is in interaction with other companion galaxies. It has an active core. Image obtained by the Hubble Space Telescope on June 9, 2002. NGC 7674 (seen just above the center), also known as Markarian 533, is the brightest and largest member of the so - called Hickson 96 compact group of galaxies, consisting of four galaxies. This stunning Hubble image shows a spiral galaxy nearly face - on. The central bar - shaped structure is made up of stars. The shape of NGC 7674, including the long narrow streamers seen to the left of and below the galaxy can be accounted for by tidal interactions with its companions. NGC 7674 has a powerful active nucleus of the kind known as

Interacting galaxies Markarian 533 - Interacting galaxies Markarian 533 - The galaxy NGC 7674 (Markarian 533 or Arp 182) is located about 400 million years ago - light from Earth in the constellation Pegase. It is the most important member of a group of galaxies called Hickson 96 (HCG 96). This spiral galaxy seen from the front is in interaction with other companion galaxies. It has an active core. Image obtained by the Hubble Space Telescope on June 9, 2002. NGC 7674 (seen just above the center), also known as Markarian 533, is the brightest and largest member of the so - called Hickson 96 compact group of galaxies, consisting of four galaxies. This stunning Hubble image shows a spiral galaxy nearly face - on. The central bar - shaped structure is made up of stars. The shape of NGC 7674, including the long narrow streamers seen to the left of and below the galaxy can be accounted for by tidal interactions with its companions. NGC 7674 has a powerful active nucleus of the kind known as

PIX4613210

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. In the background at the top, an irregular dwarf galaxy, Holmberg IX. Image obtained by an amateur telescope of 50 cm, composting different poses. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. In the background at the top, an irregular dwarf galaxy, Holmberg IX. Image obtained by an amateur telescope of 50 cm, composting different poses. M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (

R. Jay GaBany

PIX4610325

Spiral galaxy M81 seen by the Hubble space telescope - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions, while its core is surrounded by much older yellow stars and a black hole. Image obtained by the Hubble space telescope with the ACS camera in 2006. Although the M81 galaxy is 11.6 million light - years away, this image taken by the Hubble space telescope is so sharp that it can resolve individual stars, along with open star clusters, globular star clusters, and even glowing regions of fluorescent gas. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The greenish regions are dense areas of bright star formation. The ultraviolet light from hot young stars are fluorescing the surr

Spiral galaxy M81 seen by the Hubble space telescope - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions, while its core is surrounded by much older yellow stars and a black hole. Image obtained by the Hubble space telescope with the ACS camera in 2006. Although the M81 galaxy is 11.6 million light - years away, this image taken by the Hubble space telescope is so sharp that it can resolve individual stars, along with open star clusters, globular star clusters, and even glowing regions of fluorescent gas. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The greenish regions are dense areas of bright star formation. The ultraviolet light from hot young stars are fluorescing the surr

PIX4610340

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

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

PIX4609570

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by combining several poses of several hours. Located at a distance of about 45 million light - years in the southern constellation Fornax, NGC 1097 is a relatively bright, barred spiral galaxy of type SBB, seen face - on. At magnitude 9.5, and thus just 25 times fainter than the faintest object that can be seen with the unaided eye, it appears in small telescopes as a bright, circular disc. NGC 1097 is an acive galaxy with an Active Galactic Nuclei (AGN), whose emission is thought to arise from matter (gas and stars) falling into oblivion in a central black hole. There is indeed mu

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by combining several poses of several hours. Located at a distance of about 45 million light - years in the southern constellation Fornax, NGC 1097 is a relatively bright, barred spiral galaxy of type SBB, seen face - on. At magnitude 9.5, and thus just 25 times fainter than the faintest object that can be seen with the unaided eye, it appears in small telescopes as a bright, circular disc. NGC 1097 is an acive galaxy with an Active Galactic Nuclei (AGN), whose emission is thought to arise from matter (gas and stars) falling into oblivion in a central black hole. There is indeed mu

PIX4609641

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. A special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by combining several poses of several hours. Located at a distance of about 45 million light - years in the southern constellation Fornax, NGC 1097 is a relatively bright, barred spiral galaxy of type SBB, seen face - on. At magnitude 9.5, and thus just 25 times fainter than the faintest object that can be seen with the unaided eye, it appears in small telescopes as a bright, circular disc. NGC 1097 is an active galaxy with an Active Galactic Nuclei (AGN), whose emission is thought to arise from matter (gas and stars) falling into oblivion in a central black hole. There is indeed much evidence that a supermassiv

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. A special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by combining several poses of several hours. Located at a distance of about 45 million light - years in the southern constellation Fornax, NGC 1097 is a relatively bright, barred spiral galaxy of type SBB, seen face - on. At magnitude 9.5, and thus just 25 times fainter than the faintest object that can be seen with the unaided eye, it appears in small telescopes as a bright, circular disc. NGC 1097 is an active galaxy with an Active Galactic Nuclei (AGN), whose emission is thought to arise from matter (gas and stars) falling into oblivion in a central black hole. There is indeed much evidence that a supermassiv

R. Gendler

PIX4609650

Center of the particular galaxy Arp 220 in the Serpent - Heart of the galaxy Arp 220 - The galaxy Arp 220 (IC 4553) is about 250 million years away - light from Earth. Designee in the 1960s as a particular galaxy, today it is defined as an ultra-aluminous infrared galaxy. The Hubble space telescope photographed its heart in April 1997 in infrared light and discovered that its nucleus had two spiral galaxies colliding. The two nuclei (the two light points in the center) are 1200 light years apart and orbit around each other. This collision caused a tremendous flare of new stars. The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has uncovered a collision between two spiral galaxies in the heart of the peculiar galaxy called Arp 220. The collision has provided the spark for a burst of star formation. The bright, crescent moon - shaped object is a remnant core of one of the colliding galaxies. The core is a cluster of 1 billion stars. The core's hal

Center of the particular galaxy Arp 220 in the Serpent - Heart of the galaxy Arp 220 - The galaxy Arp 220 (IC 4553) is about 250 million years away - light from Earth. Designee in the 1960s as a particular galaxy, today it is defined as an ultra-aluminous infrared galaxy. The Hubble space telescope photographed its heart in April 1997 in infrared light and discovered that its nucleus had two spiral galaxies colliding. The two nuclei (the two light points in the center) are 1200 light years apart and orbit around each other. This collision caused a tremendous flare of new stars. The Hubble Space Telescope's Near Infrared Camera and Multi - Object Spectrometer (NICMOS) has uncovered a collision between two spiral galaxies in the heart of the peculiar galaxy called Arp 220. The collision has provided the spark for a burst of star formation. The bright, crescent moon - shaped object is a remnant core of one of the colliding galaxies. The core is a cluster of 1 billion stars. The core's hal

PIX4613739

Spiral galaxy NGC 1566 in the bream - The Seyfert Galaxy NGC 1566: NGC 1566 is a spiral galaxy located about 40 million light years ago. Its core is very bright. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image obtained with the Hubble telescope - NGC 1566 is a galaxy located approximately 40 million light-years away in the constellation of Dorado (The Dolphinfish). NGC 1566 is an intermediate spiral galaxy, meaning that while it does not have a well defined bar-shaped region of stars at its centre - like barred spirals - it is not quite an unbarred spiral either (heic9902o). The small but extremely bright nucleus of NGC 1566 is clearly visible in this image, a telltale sign of its membership of the Seyfert class of galaxies. The centres of such galaxies are very active and luminous, emitting strong bursts of radiation and potentially harbouring supermassive black holes that are many millions of times the mass of the Sun. NGC 1566 is not jus

Spiral galaxy NGC 1566 in the bream - The Seyfert Galaxy NGC 1566: NGC 1566 is a spiral galaxy located about 40 million light years ago. Its core is very bright. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image obtained with the Hubble telescope - NGC 1566 is a galaxy located approximately 40 million light-years away in the constellation of Dorado (The Dolphinfish). NGC 1566 is an intermediate spiral galaxy, meaning that while it does not have a well defined bar-shaped region of stars at its centre - like barred spirals - it is not quite an unbarred spiral either (heic9902o). The small but extremely bright nucleus of NGC 1566 is clearly visible in this image, a telltale sign of its membership of the Seyfert class of galaxies. The centres of such galaxies are very active and luminous, emitting strong bursts of radiation and potentially harbouring supermassive black holes that are many millions of times the mass of the Sun. NGC 1566 is not jus

PIX4609939

Elliptical galaxy NGC 1275 in Persee - Elliptical galaxy NGC 1275 in Perseus - This image obtained by the Hubble space telescope in 1995 shows a system of two colliding galaxies; in the foreground, a spiral galaxy seen almost from the edge, with many stars forming in the background, a giant, very bright elliptical galaxy, special because it has a spiral structure in its center. Its core probably houses a black hole. NGC 1275 is located about 230 million years ago - light; it belongs to the large cluster of galaxies of Persee. These images, taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), show traces of spiral structure accompanied by dramatic dust lanes and bright blue regions that mark areas of active star formation. Detailed observations of NGC 1275 indicate that the dusty material belongs to a spiral system seen nearly edge - on in the foreground. The second galaxy, lying beyond the first, is actually a giant elliptical with peculiar faint spiral structure in its nucleus.

Elliptical galaxy NGC 1275 in Persee - Elliptical galaxy NGC 1275 in Perseus - This image obtained by the Hubble space telescope in 1995 shows a system of two colliding galaxies; in the foreground, a spiral galaxy seen almost from the edge, with many stars forming in the background, a giant, very bright elliptical galaxy, special because it has a spiral structure in its center. Its core probably houses a black hole. NGC 1275 is located about 230 million years ago - light; it belongs to the large cluster of galaxies of Persee. These images, taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), show traces of spiral structure accompanied by dramatic dust lanes and bright blue regions that mark areas of active star formation. Detailed observations of NGC 1275 indicate that the dusty material belongs to a spiral system seen nearly edge - on in the foreground. The second galaxy, lying beyond the first, is actually a giant elliptical with peculiar faint spiral structure in its nucleus.

PIX4609694

Barree spiral galaxy NGC 4319 and Markarian quasar 205 - Galaxy NGC 4319 and quasar Markarian 205 - The barree spiral galaxy NGC 4319, in the center, is 80 million years - light in the constellation of the Dragon. The Markarian 205 quasar, on the top right, is 14 times further at about 1 billion light years. These two objects are therefore not interacting; on the other hand, the galaxy NGC 4319 is probably interacting with the galaxy NGC 4291, out of field, as the weak arm at the bottom left allows. Quasars are galaxies that create an extremely bright core. Image made by the Hubble Space Telescope in 2002. In this NASA Hubble Space Telescope image, an odd celestial duo, the spiral galaxy NGC 4319 (center) and a quasar called Markarian 205 (upper right), appear to be neighbors. In reality, the two objects don't even live in the same city. NGC 4319 is 80 million light - years from Earth. Markarian 205 (Mrk 205) is more than 14 times farther away, residing 1 billion light - years from Ear

Barree spiral galaxy NGC 4319 and Markarian quasar 205 - Galaxy NGC 4319 and quasar Markarian 205 - The barree spiral galaxy NGC 4319, in the center, is 80 million years - light in the constellation of the Dragon. The Markarian 205 quasar, on the top right, is 14 times further at about 1 billion light years. These two objects are therefore not interacting; on the other hand, the galaxy NGC 4319 is probably interacting with the galaxy NGC 4291, out of field, as the weak arm at the bottom left allows. Quasars are galaxies that create an extremely bright core. Image made by the Hubble Space Telescope in 2002. In this NASA Hubble Space Telescope image, an odd celestial duo, the spiral galaxy NGC 4319 (center) and a quasar called Markarian 205 (upper right), appear to be neighbors. In reality, the two objects don't even live in the same city. NGC 4319 is 80 million light - years from Earth. Markarian 205 (Mrk 205) is more than 14 times farther away, residing 1 billion light - years from Ear

PIX4611257

Star Formation in Galaxy M83 - Star Birth in Spiral galaxy M83 - Close-up of star-forming zones in the arms and near the nucleus (white region on the right) of the M83 galaxy. In red appear the hydrogen clouds in which the stars are born. The new stars are concentrated in blue clusters visible by hundreds on this image. The galaxy M83 (NGC 5236) is located about 15 million light years away from Earth in the constellation Hydra. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained by the Hubble space telescope with its wide field camera 3 (WFC3) in August 2009. Nicknamed the Southern Pinwheel, M83 is undergoing more rapid star formation than our own Milky Way galaxy, especially in its nucleus. The sharp “” eye”” of the Wide Field Camera 3 (WFC3) has captured hundreds of young star clusters, ancient swarms of globular star clusters, and hundreds of thousands of individual stars, mostly blue supergiants and red supergiants. The image, taken in August 20

Star Formation in Galaxy M83 - Star Birth in Spiral galaxy M83 - Close-up of star-forming zones in the arms and near the nucleus (white region on the right) of the M83 galaxy. In red appear the hydrogen clouds in which the stars are born. The new stars are concentrated in blue clusters visible by hundreds on this image. The galaxy M83 (NGC 5236) is located about 15 million light years away from Earth in the constellation Hydra. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained by the Hubble space telescope with its wide field camera 3 (WFC3) in August 2009. Nicknamed the Southern Pinwheel, M83 is undergoing more rapid star formation than our own Milky Way galaxy, especially in its nucleus. The sharp “” eye”” of the Wide Field Camera 3 (WFC3) has captured hundreds of young star clusters, ancient swarms of globular star clusters, and hundreds of thousands of individual stars, mostly blue supergiants and red supergiants. The image, taken in August 20

PIX4612521

Tikal - The Pyramid of the Lost World and the constellation Orion - Tikal - Orion constellation above Mundo Perdido Temple - 30 m tall, the Pyramid of the Lost World (Structure 5C - 54) constituted the largest edifice of Tikal until the seventh century. It is located in the south-west part of the central core of Tikal, south of Temple III and west of Temple V. The pyramid forms, with three small buildings located to the east, an Ensemble E which would have had astronomical significance. Tikal (or Tik'al according to modern Mayan spelling) is one of the largest archaeological sites and urban centers of the Mayan precolombian civilization. Located in what is now northern Guatemala, it was declared a UNESCO World Heritage Site in 1979. The Lost World Pyramid (Structure 5C - 54) lies in the southwest portion of Tikal's central core, south of Temple III and west of Temple V. It was decorated with stucco masks of the sun god and dates to the Late Preclassic; this pyramid is part of an enclos

Tikal - The Pyramid of the Lost World and the constellation Orion - Tikal - Orion constellation above Mundo Perdido Temple - 30 m tall, the Pyramid of the Lost World (Structure 5C - 54) constituted the largest edifice of Tikal until the seventh century. It is located in the south-west part of the central core of Tikal, south of Temple III and west of Temple V. The pyramid forms, with three small buildings located to the east, an Ensemble E which would have had astronomical significance. Tikal (or Tik'al according to modern Mayan spelling) is one of the largest archaeological sites and urban centers of the Mayan precolombian civilization. Located in what is now northern Guatemala, it was declared a UNESCO World Heritage Site in 1979. The Lost World Pyramid (Structure 5C - 54) lies in the southwest portion of Tikal's central core, south of Temple III and west of Temple V. It was decorated with stucco masks of the sun god and dates to the Late Preclassic; this pyramid is part of an enclos

Stephane Guisard

PIX4673091

Galaxy M82 view in different wavelength - Galaxy M82 in multi - wavelength - Composite of different images: in blue the image obtained by Chandra in X-rays, in red the infrared image obtained by Spitzer, in yellow, orange, green, the image of Hubble. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Composite of multi - wavelength images of the active galaxy M82 from the three Great Observatories. X - ray data recorded by Chandra appears here in blue; infrared light recorded by Spitzer appears in red; Hubble's observations of hydrogen emission appears in orange, and the bluest visible light appears in yellow - green. Another Hubble observation designed to image 10,000 degree Celsius hydrogen gas (orange

Galaxy M82 view in different wavelength - Galaxy M82 in multi - wavelength - Composite of different images: in blue the image obtained by Chandra in X-rays, in red the infrared image obtained by Spitzer, in yellow, orange, green, the image of Hubble. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Composite of multi - wavelength images of the active galaxy M82 from the three Great Observatories. X - ray data recorded by Chandra appears here in blue; infrared light recorded by Spitzer appears in red; Hubble's observations of hydrogen emission appears in orange, and the bluest visible light appears in yellow - green. Another Hubble observation designed to image 10,000 degree Celsius hydrogen gas (orange

PIX4610442

Galaxy of the Wheel of the Charette in the Sculptor - The Cartwheel Galaxy - The ring galaxy of the Wheel of the Charette is about 500 million years away - light from Earth. It is surrounded by a ring of 150,000 years - light of diameter composed of young and very bright stars (detail at the top left). This particular form is the result of a collision, probably with one of the two galaxies on the right. Bottom left, close-up on the nucleus of the galaxy. Image obtained by the Hubble Space Telescope in October 1994. A rare and spectacular head - on collision between two galaxies appears in this NASA Hubble Space Telescope true - color image of the Cartwheel Galaxy, located 500 million light - years away in the constellation Sculptor. The details of star birth resolved by Hubble provide an opportunity to study how extremely massive stars are born in large fragmented gas clouds. The striking ring - like feature is a direct result of a smaller intruder galaxy - - possibly one of two object

Galaxy of the Wheel of the Charette in the Sculptor - The Cartwheel Galaxy - The ring galaxy of the Wheel of the Charette is about 500 million years away - light from Earth. It is surrounded by a ring of 150,000 years - light of diameter composed of young and very bright stars (detail at the top left). This particular form is the result of a collision, probably with one of the two galaxies on the right. Bottom left, close-up on the nucleus of the galaxy. Image obtained by the Hubble Space Telescope in October 1994. A rare and spectacular head - on collision between two galaxies appears in this NASA Hubble Space Telescope true - color image of the Cartwheel Galaxy, located 500 million light - years away in the constellation Sculptor. The details of star birth resolved by Hubble provide an opportunity to study how extremely massive stars are born in large fragmented gas clouds. The striking ring - like feature is a direct result of a smaller intruder galaxy - - possibly one of two object

PIX4613572

Andromede Galaxy (M31) infrared view - The Andromeda galaxy seen in infrared - This image shows the difference in infrared radiation between the light emitted by the aged stars (blue) and that emitted by the dust (star-forming zone, yellow and red). This image obtained by the WISE satellite also distinguishes the two Andromede satellite galaxies, M32 (above the nucleus of the Andromede galaxy) and NGC 205 (M110) below. Infrared composite at the following wavelengths: 3.4 and 4.6 microns (blue), 12 microns (green), and 22 microns dust sensitive, red. M31, is captured in full in this new image from Nasa's Wide - field Infrared Survey Explorer, or WISE. The mosaic covers an area equivalent to more than 100 full moons, or five degrees across the sky. WISE used all four of its infrared detectors to capture this picture (3.4 - and 4.6 - micron light is colored blue; 12 - micron light is green; and 22 - micron light is red). Blue highlights mature stars, while yellow and red show dust heated

Andromede Galaxy (M31) infrared view - The Andromeda galaxy seen in infrared - This image shows the difference in infrared radiation between the light emitted by the aged stars (blue) and that emitted by the dust (star-forming zone, yellow and red). This image obtained by the WISE satellite also distinguishes the two Andromede satellite galaxies, M32 (above the nucleus of the Andromede galaxy) and NGC 205 (M110) below. Infrared composite at the following wavelengths: 3.4 and 4.6 microns (blue), 12 microns (green), and 22 microns dust sensitive, red. M31, is captured in full in this new image from Nasa's Wide - field Infrared Survey Explorer, or WISE. The mosaic covers an area equivalent to more than 100 full moons, or five degrees across the sky. WISE used all four of its infrared detectors to capture this picture (3.4 - and 4.6 - micron light is colored blue; 12 - micron light is green; and 22 - micron light is red). Blue highlights mature stars, while yellow and red show dust heated

PIX4608987

Tikal - The Pyramid of the Lost World and the constellation Orion - Tikal - Orion constellation above Mundo Perdido Temple - 30 m tall, the Pyramid of the Lost World (Structure 5C - 54) constituted the largest edifice of Tikal until the seventh century. It is located in the south-west part of the central core of Tikal, south of Temple III and west of Temple V. The pyramid forms, with three small buildings located to the east, an Ensemble E which would have had astronomical significance. Tikal (or Tik'al according to modern Mayan spelling) is one of the largest archaeological sites and urban centers of the Mayan precolombian civilization. Located in what is now northern Guatemala, it was declared a UNESCO World Heritage Site in 1979. The Lost World Pyramid (Structure 5C - 54) lies in the southwest portion of Tikal's central core, south of Temple III and west of Temple V. It was decorated with stucco masks of the sun god and dates to the Late Preclassic; this pyramid is part of an enclos

Tikal - The Pyramid of the Lost World and the constellation Orion - Tikal - Orion constellation above Mundo Perdido Temple - 30 m tall, the Pyramid of the Lost World (Structure 5C - 54) constituted the largest edifice of Tikal until the seventh century. It is located in the south-west part of the central core of Tikal, south of Temple III and west of Temple V. The pyramid forms, with three small buildings located to the east, an Ensemble E which would have had astronomical significance. Tikal (or Tik'al according to modern Mayan spelling) is one of the largest archaeological sites and urban centers of the Mayan precolombian civilization. Located in what is now northern Guatemala, it was declared a UNESCO World Heritage Site in 1979. The Lost World Pyramid (Structure 5C - 54) lies in the southwest portion of Tikal's central core, south of Temple III and west of Temple V. It was decorated with stucco masks of the sun god and dates to the Late Preclassic; this pyramid is part of an enclos

Stephane Guisard

PIX4673089

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. In the background at the top, an irregular dwarf galaxy, Holmberg IX. This image obtained by a 50 cm amateur telescope, in February 2010 for 23 hours of poses, shows gas filaments whose origin is uncertain. Located about 12 million light - years from our planet, M81 (NGC 3031) together with M82 (NGC 3034), NGC 3077 and NGC 2976 forms one of the most iconic groups of interacting galaxies. The M81 group has also been the subject of many studies searching for and analyzing evidence of strong interactions among its components. In 1965, Halton Arp detected an unusual looping feature near M81 while examining photographic plates produced with the 48 - inch Schmidt on Mount Palomar. Traditionally, ARP's loop has been interpreted as a tail resulting from

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. In the background at the top, an irregular dwarf galaxy, Holmberg IX. This image obtained by a 50 cm amateur telescope, in February 2010 for 23 hours of poses, shows gas filaments whose origin is uncertain. Located about 12 million light - years from our planet, M81 (NGC 3031) together with M82 (NGC 3034), NGC 3077 and NGC 2976 forms one of the most iconic groups of interacting galaxies. The M81 group has also been the subject of many studies searching for and analyzing evidence of strong interactions among its components. In 1965, Halton Arp detected an unusual looping feature near M81 while examining photographic plates produced with the 48 - inch Schmidt on Mount Palomar. Traditionally, ARP's loop has been interpreted as a tail resulting from

R. Jay GaBany

PIX4610376

Women's Evening Dress, c.1817 (silk & wool with glass beads)

Women's Evening Dress, c.1817 (silk & wool with glass beads)

French School, (19th century)

PHL2910114

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

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

PIX4609655

The heart compared to a seed, c.1508 (pen & ink and chalk on paper) (recto of 5455484)

The heart compared to a seed, c.1508 (pen & ink and chalk on paper) (recto of 5455484)

Vinci, Leonardo da (1452-1519)

ROC5455483

Bust of a 'Barbary pirate', c.1700 (terracotta)

Bust of a 'Barbary pirate', c.1700 (terracotta)

Unknown artist, (18th century)

MMM7342403

Juvenile Fancy-Dress Ball, on 5 January, at the Mansion House (engraving)

Juvenile Fancy-Dress Ball, on 5 January, at the Mansion House (engraving)

Forestier, Amedee (1854-1930) (after)

LIP1604456

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