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Ursa major
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Ursa major Expand (9kb, 1024 x 768) Expand (7kb, 1024 x 768)
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Nacreous clouds
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Some of the coldest temperatures on Earth brought a rare cloud formation to the skies over Antarctica, scientists said Tuesday. The so-called nacreous clouds were situated high in the stratosphere, requiring temperatures less than minus 176 degrees Fahrenheit. A weather balloon measured temp...
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Perseus
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Perseus 1:00 BST, 12 August, 2007 Expand (214kb, 1024 x 768)
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Centaurus A
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Peering deep inside Centaurus A (NGC 5128), the closest active galaxy to Earth at 10 million light-years away, the Spitzer Space Telescope's penetrating infrared cameras recorded this startling vista in February 2004.
About 1,000 light-years across, the twisted cosmic dust cloud ap...
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Mars Sedimentary Rocks
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Ladon Sedimentary Rocks
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows light-toned, layered, sedimentary rocks exposed by the fluids that carved the Ladon Valles system in the Erythraeum region of Mars.
[img]http://img.photobuc...
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Hubble Ultra Deep Field
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Spoiler Expand (1911 X 1912) Part of middle of the Hubble Ultra Deep Field, 255 X 255 pixels in the original HUDF, (cropped from its o...
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Minerals
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Agate slice Expand (178kb, 1024 x 768)
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Sgr A*
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Monitoring a region around the centre of our Galaxy, astronomers have indeed found evidence for a surprisingly large number of variable x-ray sources - likely black holes or neutron stars in binary star systems - swarming around the Milky Way's own central supermassive black hole.
[img]http...
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Lagoon Nebula
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The Lagoon Nebula also known as M8, is visible even without binoculars towards the constellation of Sagittarius[img]http://antwrp.gsfc.nasa.gov/apod/image/0508/m8_sheric...
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Noctilucent Clouds
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Sometimes it's night on the ground but day in the air. As the Earth rotates to eclipse the Sun, sunset rises up from the ground.
Therefore, at sunset on the ground, sunlight still shines on clouds above.
Under usual circumstances, a pretty sunset might be visible, but unusual noctilucent clouds...
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APOD Is Ten
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Astronomy Picture of the Day Is Ten Years Old Today Expand Robert Nemiroff (left) and persistent Jerry Bonnell (right) have brought compelling images of the cosmos that are not limited to those taken fr...
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Rainbows
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Virgo
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The Constellation Virgo
00:47 UT on Friday 19 May 2006
Exposure Time 20 ms
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Aberdeen sky
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30th September 2005
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Westhill
[url=...
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Albireo
(Preview)
Seen at even slight magnification, the bright double star Albireo shows the strikingly different colours of the two component stars.
At 380 light years distant, the two bright stars of Albireo are comparatively far from each other and take over 7000 years to complete a single orbit.
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