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Wszechświat/Planety (319)

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! EN_90248105_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Beta Pictoris planetary disc, artwork. A protoplanetary disc has formed around the star Beta Pictoris (upper centre). Several planets have already formed, such as the gas giant at lower left. Ring-shaped empty areas are seen in the disc, formed by the passage of protoplanets in their orbits as they gather up surrounding material. At centre right, large asteroids are colliding with a rocky planet. Two comets are seen near the central Beta Pictoris star. The Beta Pictoris system is around 63 light years from Earth, in the constellation Pictor.
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! EN_90256873_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Epsilon Eridani b planet, artwork. This planet (far left) is a ringed gas giant. One of its moons is in the foreground. This planetary system is around 10 light years from Earth in the constellation Eridanus. The gas giant planet is thought to be orbiting close to the star's habitable zone, so its moons might be able to support life. The moon shown here has been depicted as similar to Titan, the largest moon of Saturn with an atmosphere of nitrogen and liquid hydrocarbons. In the background (across top) is part of the dust ring that surrounds the Epsilon Eridani system.
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! EN_90260766_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Gliese 436 b in transit across its star. This montage artwork shows a sequence as the planet passes in front of its parent star. From Earth, this is seen as a dimming of the star, and is one of the ways in which such planets are detected. Gliese 436 is a red dwarf star, and is around 33 light years from Earth in the constellation Leo.
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! EN_90260767_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Gliese 436 b planet and star, artwork. The planet is at upper right, with its parent star at lower left. At lower right is a montage artwork shows a transit of the planet across its parent star. From Earth, this is seen as a dimming of the star, and is one of the ways in which such planets are detected. Gliese 436 is a red dwarf star, and is around 33 light years from Earth in the constellation Leo.
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! EN_90260768_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Gliese 581 c planet and star, artwork. This view, from the surface of a possible moon orbiting the planet, shows the parent star (upper right) and the planet itself (upper left). Another planet or moon is seen transiting (passing in front of) the star. This planet, which has a radius about 1.5 times that of Earth, is thought to be near the star's habitable zone. Oceans and vegetation are depicted on its surface. Gliese 581 is around 20 light years from Earth, in the contellation of Libra.
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! EN_90260851_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Globular cluster black hole, artwork. The black hole is at centre, and has been depicted in exaggerated form, with the green lines marking the paths of nearby stars that orbit it. These stars move faster when near the black hole than when further away. Studying the motion of such stars is one way to detect the presence of a black hole when other methods are not possible. The cluster's stars make up the rest of the image, and are mostly cooler (yellow) stars, with some hot (blue) stars. This black hole is in the Omega Centauri globular cluster (NGC 5139), which is around 18, 300 light years from Earth, in the constellation of Centaurus.
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! EN_90268557_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Milky Way central black hole, artwork. The black hole is at centre, surrounded by an accretion disc of material spiralling inwards. There are many massive young stars in this region, and also clouds of gas and dust reflecting the light formed as material spirals into the black hole. At top left is the Arches Cluster (blue), a large group of hot young stars. The Milky Way's galactic centre is in the direction of the constellation Sagittarius, and is around 26,000 light years from Earth.
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! EN_90241520_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Vesta asteroid. Computer artwork of the asteroid Vesta (4 Vesta), based on Hubble Space Telescope (HST) images. The asteroid's south pole (lower centre) has been flattened, suggesting that it has experienced a major impact with another object in the past. Vesta orbits the Sun between the orbits of Mars & Jupiter at an average distance of 353 million kilometres (2.36 times the radius of Earth's orbit). It is the second largest asteroid, having a diameter of about 538 kilometres. Under favourable conditions, it is the only asteroid visible to the naked eye.
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! EN_90225295_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY HD 113766 planetary system, artwork. Infrared observations by the Spitzer Space Telescope (SST) have revealed that the HD 113766 binary star system may have a planetary system forming around one of its stars (foreground). The observations suggest that an inner ring (brown) may form into a rocky planet, like Mars or Earth. The outer ring (white) is made up of icy bodies. The other star in the binary pair is at upper right.
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! EN_90238103_0003 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY *** THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY ESA ENDORSEMENT OF ANY COMPANY OR PRODUCT *** Space debris. Computer artwork showing space debris in low Earth orbit (LEO, up to 2000 kilometres altitude). Space debris includes thousands of inactive satellites, fragments of broken up spacecraft and equipment lost by astronauts. This artwork is based on density data, but the debris is not to scale.
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! EN_90238103_0004 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY *** THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY ESA ENDORSEMENT OF ANY COMPANY OR PRODUCT *** Space debris. Computer artwork showing space debris in low Earth orbit (LEO, up to 2000 kilometres altitude) and geostationary Earth orbit (GEO, around 35,700 kilometres altitude, shown by yellow ring). Space debris includes thousands of inactive satellites, fragments of broken up spacecraft and equipment lost by astronauts. This artwork is based on density data, but the debris is not to scale.
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! EN_90238103_0005 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY *** THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY ESA ENDORSEMENT OF ANY COMPANY OR PRODUCT *** Space debris. Computer artwork showing space debris in low Earth orbit (LEO, yellow, up to 2000 kilometres altitude). Space debris includes thousands of inactive satellites, fragments of broken up spacecraft and equipment lost by astronauts. This artwork is based on density data, but the debris is not to scale.
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! EN_90238103_0002 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY *** THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY ESA ENDORSEMENT OF ANY COMPANY OR PRODUCT *** Space debris. Computer artwork showing space debris in low Earth orbit (LEO, up to 2000 kilometres altitude) and geostationary Earth orbit (GEO, around 35,700 kilometres altitude). Space debris includes thousands of inactive satellites, fragments of broken up spacecraft and equipment lost by astronauts. This artwork is based on density data, but the debris is not to scale.
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! EN_90240662_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY *** THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY ESA ENDORSEMENT OF ANY COMPANY OR PRODUCT *** Trackable space debris. Computer artwork showing the trackable space debris in low Earth orbit (LEO, up to 2000 kilometres altitude) and geostationary Earth orbit (GEO, around 35,700 kilometres altitude). The debris is trackable if it is larger than 15 centimetres in diameter. Space debris includes thousands of inactive satellites, fragments of broken up spacecraft and equipment lost by astronauts. This artwork is based on density data, , but the debris is not to scale. For an image including untrackable debris see S800/038.
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! EN_90241482_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Venus. Synthetic aperture radar map of a hemisphere of Venus centred on the prime meridian (0 degrees longitude). The shading indicates the elevation of the surface relative to the mean planetary radius (6041 kilometres), from dark (valleys) to white (mountains). Near the top of the frame is an upland 'continent' called Ishtar Terra, featuring Maxwell Montes, the largest mountain on Venus. The map was created using data gathered by the Magellan radar-mapping spacecraft.
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! EN_90224960_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Great Comet of 1861. Drawing, published in Les Cometes (1875), by the French author Amedee Guillemin (1826-1893), of the Great Comet of 1861. This comet, one of the largest and brightest of the 19th century, was visible to the naked eye for three months in the Northern Hemisphere from June to August 1861. It was discovered by astronomer John Tebbutt observing from Australia, and was notable for its position, seen here, close to the horizon. At its closest approach, the Earth passed through the tail of this comet. The period of its orbit was calculated to be 400 years.
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! EN_90225297_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY HD 98800 star system. Artwork, based on Spitzer Space Telescope (SST) infrared observations, of the dust rings surrounding a binary star system in the four-star HD 98800 system. The other two stars, also forming a binary pair, are at upper right. These four stars are all a young star type known as a T-Tauri. The SST observations, because they were carried out in infrared, revealed gaps in the dust disc that indicate that planets may have formed. One of the planets would be orbiting at a distance similar to the Mars-Sun distance in our own Solar System. The HD 98800 system is about 150 light years from Earth, in the constellation Hydra.
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! EN_90243660_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY X-ray binary star system, artwork. Material is being gravitationally drawn from the giant blue star (right) by a black hole (left). The material has formed an accretion disc around the black hole. Extreme rotation speeds within the disc generate temperatures high enough for the emission of X-rays. Two polar radiation jets are seen emerging from the area around the black hole. A giant blue star is a massive, short-lived star. A black hole is an object that forms when a massive star exhausts its fuel. Its core collapse under its own gravity to a diameter of only a few kilometres.
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! EN_90221029_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY Dust disc around a star, computer artwork. This artwork is based on the dust disc discovered around the star Epsilon Eridani. The disc is at a similar distance to the Kuiper Belt in Earth's solar system, but contains much more material. The central space indicates that planets have formed around this star. Two planets have so far been discovered orbiting Epsilon Eridani.
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! EN_90229504_0001 SCI
PHOTO: EAST NEWS/SCIENCE PHOTO LIBRARY M33 X-7 binary star system, computer artwork. M33 X-7 is located in M33, a galaxy 2.6 million light years from Earth. It consists of a black hole (its accretion disc can be seen, orange) in orbit with a huge companion star (blue). The black hole is the largest to have formed from a collapsed star. The companion star also has an unusually large mass, 70 times that of the Sun. This makes it the most massive companion star known in a binary system containing a black hole. Material from the companion star is seen being pulled toward the black hole by its powerful gravity. The companion star itself is also distorted by the gravity from the black hole. It is stretched slightly in the direction of the black hole, causing it to become less dense in this region and to appear darker.
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