"Кадр дня" NASA, Фото & Обои
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|  Кадр дня: Cygnus Trio 7 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler «  Cygnus Trio
Credit & Copyright: J-P Metsävainio (Astro Anarchy)
Explanation: In this colorful mosaic, filaments of gas and dust span some 9 degrees across central Cygnus, a nebula rich constellation along the northern Milky Way. A trio of nebulae with popular names highlights the beautiful skyscape - the Butterfly, the Crescent, and the Tulip. At left, the Butterfly Nebula (IC 1318), lies near bright star Gamma Cygni. The Butterfly's expansive, glowing, wing-shaped gas clouds are divided by a dark dust lane. Near center, the Crescent Nebula (NGC 6888) is more compact, a cosmic bubble with a bright edge blown by winds from a massive Wolf-Rayet star. On the right is the Tulip Nebula (Sh2-101), a small emission region shaped like a blossoming flower viewed from the side. All are within a few thousand light-years of the Sun in the Orion spiral arm of our galaxy. The gorgeous mosaic is presented in false color, constructed from image data recorded through narrow band filters. The range of colors was created by a mapping of emission from hydrogen, sulfur and oxygen atoms in the nebula to red, green, and blue hues. Кадр дня: Лесные пожары на северо-западе Индии 7 ноября 2008» Нажмите, для открытия спойлера | Press to open the spoiler « В рубрике "Кадр дня" NASA возвратилось к теме лесных пожаров. Новый снимок, сделанный спутником Aqua, демонстрирует довольно большое количество очагов возгораний, зафиксированных в северо-западной части Индии. Ну а шлейф от пожарищ растянулся на сотни километров. | | |
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17.11.2008 - 10:52 |
clon31
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| Кадр дня: HR 8799: Discovery of a Multi-planet Star System 17 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler « 
Credit: C. Marois et al., NRC Canada
Explanation: How common are planetary systems like our own Solar System? In the twelve years previous to 2008, over 300 candidate planetary systems have been found orbiting nearby stars. None, however, were directly imaged, few showed evidence for multiple planets, and many had a Jupiter-sized planet orbiting inside the orbit of Mercury. Last week, however, together with recent images of Fomalhaut b, the above picture was released showing one of first confirmed images of planets orbiting a distant Sun-like star. HR 8799 has a mass about 1.5 times that of our own Sun, and lies about 130 light years from the Sun -- a distance similar to many stars easily visible in the night sky. Pictured above, a 10-meter Keck telescope in Hawaii captured in infrared light three planets orbiting an artificially obscured central star. The 8-meter Gemini North telescope captured a similar image. Each planet likely contains several times the mass of Jupiter, but even the innermost planet, labelled d, orbits out near the orbit of Neptune. Although the HR 8799 planetary system has significant differences with our Solar System, it is a clear demonstration that complex planetary systems exists, systems that could conceivable contain an Earth-like planet.
Кадр дня: Туман у подножья Гималаев 17 ноября 2008» Нажмите, для открытия спойлера | Press to open the spoiler «
Всем нам приходилось видеть туман, когда "ни зги не видно". Но вряд ли кому-нибудь из нас приходилось попадать в такой туман, который в предгорьях Гималаев увидели камеры спутника Aqua. Фотография публикуется в рубрике NASA "Кадр дня".
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17.11.2008 - 13:34 |
ogondush
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| Цитата | Quote(clon31 @ 17.11.2008 - 10:52) Цитата | Quote(clon31 @ 17.11.2008 - 10:52) to hr8799 Как много планетарных систем похожих на Нашу солнечную систему во вселенной? За последние 12 лет было найденно около 300 кандидатов но ничего похожего.То планеты были слишком большие то орбиты как у Меркурия. Но! На прошлой неделе нашли звезду hr8799 с планетами орбиты которых очень похожи на нашу солнечную...."Это явно демонстрирует не только... , но ивозможность существования планеты такой как Земля. (перевод в сокращении). | | |
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18.11.2008 - 15:17 |
clon31
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| Кадр дня: First Image of the Earth from the Moon 18 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler «
Credit: NASA/LOIRP
Explanation: Pictured above is the first image ever taken of the Earth from the Moon. The image was taken in 1966 by Lunar Orbiter 1 and heralded by then-journalists as the Image of the Century. It was taken about two years before the Apollo 8 crew snapped its more famous color cousin. Recently, modern technology has allowed the recovery of higher resolution images from old data sources such as Lunar Orbiter tapes than every before. Specifically, the above image recovery was led by Nancy Evans as part of the Lunar Orbiter Image Recovery Project. Images like that above carry more than aesthetic value -- comparison to recent high definition images of the Moon enables investigations into how the Moon has been changing.
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19.11.2008 - 11:27 |
clon31
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| Кадр дня: Unusual Auroras Over Saturn's North Pole 19 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler « 
Credit: Cassini VIMS Team, JPL, ESA, NASA
Explanation: What's causing this unusual aurora over Saturn? No one is sure. Infrared images by the robotic Cassini spacecraft of the north pole of Saturn have uncovered aurora unlike any other seen previously in our Solar System. The strange aurora are shown in blue in the above image, while the underlying clouds are shown in red. The previously recorded, also-strange hexagon cloud patterns are visible in red below the aurora. These Saturnian aurora can cover the entire pole, while auroras around Earth and Jupiter are typically confined by magnetic fields to rings surrounding the magnetic poles. More normal auroral rings had been previously imaged around Saturn. The recently imaged strange auroras above Saturn's north pole can change their global patterns significantly in only a few minutes. The large and variable nature of these auroras indicate that charged particles streaming in from the Sun are experiencing some type of magnetism above Saturn that was previously unexpected.
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20.11.2008 - 9:22 |
clon31
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| Кадр дня: Endeavour in the Moon 20 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler «
Credit & Copyright: Marek Kozubal, Clay Center Observatory at Dexter and Southfield Schools
Explanation: Glaring near the top of the frame, the shuttle orbiter Endeavour rockets into the night on the STS-126 mission. Endeavour left planet Earth on November 14 from Launch Pad 39A at NASA's Kennedy Space Center, making the 27th flight to the International Space Station. To record the dramatic view, the camera was placed so the shuttle's flight path tracked across the Moon, from a vantage point in Indian River City, Florida. Near picture center the almost full, perigee Moon shining through thin clouds silhouettes the shuttle's dense exhaust trail. On board the space station, the crew and the STS-126 astronauts can celebrate the orbital outpost's 10th anniversary today. Construction of the International Space Station officially began with the November 20, 1998 Russian launch of the station's first element, the bus-sized Zarya module.
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21.11.2008 - 11:14 |
clon31
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| Кадр дня: M76 Above and Below 21 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler « 
Credit & Copyright: Don Goldman
Explanation: Also known by the popular name the "Little Dumbbell Nebula", M76 is one of the fainter objects listed in Charles Messier's 18th century Catalog of Nebulae and Star Clusters. Like its better-known namesake M27 (the Dumbbell Nebula), M76 is recognized as a planetary nebula - a gaseous shroud cast off by a dying sunlike star. The nebula itself is thought to be shaped more like a donut, its central box-like appearance due to our nearly edge-on view. Gas expanding more rapidly away from the donut hole produces the more extensive, far flung material in this remarkable image that uses narrow-band filters to highlight the emission from hydrogen (in red) and oxygen atoms (in greenish blue). In particular, complex oxygen emission features are seen above and below the main nebula to a degree not detected in most images of M76. Distance estimates place M76 about 3 to 5 thousand light-years away toward the heroic constellation Perseus, making the nebula over a light-year in diameter.
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22.11.2008 - 10:46 |
clon31
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| Кадр дня: From Moonrise to Sunset 21 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler «
Credit & Copyright: Miguel Claro
Explanation: In this panorama of Earth and sky recorded on Thursday, November 13, the Full Moon rises along the eastern horizon at the far left. Of course, the Full Moon rises at sunset and that Thursday's setting Sun was also captured at the far right. In between, 17 digital images are stitched together to follow the horizon to the south in a lovely twilight portrait of the city of Lisbon, Portugal. The serene view takes in part of the longest bridge in Europe, the Vasco da Gama bridge, beneath the rising Moon and ends at the mouth of the Tagus River looking west toward the sunset and the Atlantic Ocean. The photographer's vantage point was Lisbon's 100 foot high Cristo Rei monument on the south bank of the Tagus, at the foot of the port city's other famous bridge, the Ponte 25 de Abril.
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22.11.2008 - 20:31 |
clon31
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| Кадр дня: Eastern Aleutian Islands 22 ноября 2008» Нажмите, для открытия спойлера | Press to open the spoiler «
This image of the eastern Aleutian Islands was captured by the MODIS on the Aqua satellite on November 19, 2008.
The Bering Sea dominates the upper left half of the image, and the Northern Pacific Ocean dominates the bottom right half.
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23.11.2008 - 12:06 |
clon31
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| Кадр дня: In the Vicinity of the Cone Nebula 22 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler «
Credit & Copyright: T. A. Rector (NRAO), NOAO, AURA, NSF Credit:
Explanation: Strange shapes and textures can be found in neighborhood of the Cone Nebula. The unusual shapes originate from fine interstellar dust reacting in complex ways with the energetic light and hot gas being expelled by the young stars. The brightest star on the right of the above picture is S Mon, while the region just above it has been nicknamed the Fox Fur Nebula for its color and structure. The blue glow directly surrounding S Mon results from reflection, where neighboring dust reflects light from the bright star. The orange glow that encompasses the whole region results not only from dust reflection but also emission from hydrogen gas ionized by starlight. S Mon is part of a young open cluster of stars named NGC 2264, located about 2500 light years away toward the constellation of Monoceros. The origin of the mysterious geometric Cone Nebula, visible on the far left, remains a mystery.
Кадр дня: Floods in Ethiopia 22 ноября 2008» Нажмите, для открытия спойлера | Press to open the spoiler «
Heavy rains starting on November 2 pushed several rivers in southeastern Ethiopia over their banks. The main image, taken by the MODIS) on NASA’s Terra satellite on November 18, 2008, shows floods along the Wabe Shabele, where the impact was most severe. Compared to October 26 (which you will see if you move your mouse over the image), the river has widened.
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24.11.2008 - 11:43 |
clon31
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| Кадр дня: Radar Indicates Buried Glaciers on Mars 23 ноября 2008 » Нажмите, для открытия спойлера | Press to open the spoiler « 
Data Reconstruction Credit : NASA/JPL-Caltech/UTA/UA/MSSS/ESA/DLR/JPL Solar System Visualization Project
Explanation: What created this unusual terrain on Mars? The floors of several mid-latitude craters in Hellas Basin on Mars appear unusually grooved, flat, and shallow. New radar images from the Mars Reconnaissance Orbiter bolster an exciting hypothesis: huge glaciers of buried ice. Evidence indicates that such glaciers cover an area larger than a city and extend as much as a kilometer deep. The ice would have been kept from evaporating into the thin Martian air by a covering of dirt. If true, this would indicate the largest volume of water ice outside of the Martian poles, much larger than the frozen puddles recently discovered by the Phoenix lander. Such lake-sized ice blocks located so close to the Martian equator might make a good drinking reservoir for future astronauts exploring Mars. How the glaciers originally formed remains a mystery. In the meantime, before packing up to explore Mars, please take a moment to suggest a name for NASA's next Martian rover.
Кадр дня: Lee Clouds in the Russian Ural Mountains 23 ноября 2008» Нажмите, для открытия спойлера | Press to open the spoiler «
The MODIS on NASA’s Terra satellite captured this image which shows the movement of air and weather over the Ural Mountains in southern Russia at 12:20 pm local time on November 13, 2008. The most obvious pattern shown in the image is the influence of the mountains on precipitation, in this case, snow. A storm moving from the west bumped up against the Ural Mountains. The mountains tend to wring the moisture out of storms, and so, the western mountains are covered in snow, while the land to the east, on the lee side of the mountains, is bare.
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