Science Source Feb 2010
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PHOThis photograph captures the exotic volcanic terrain of the Altiplano of the Central Andes. Some of the remarkable details include the west-pointing w...
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PHOGanges River Delta, Bangladesh, India. The Ganges River Delta is the largest inter-tidal delta in the world. With its extensive mangrove mud flats, sw...
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PHOThe Great Andromeda Galaxy. The Great Andromeda Galaxy (M31; NGC 224) is located 2.2 million light years from Earth in the constellation Andromeda. At...
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PHOCircumpolar star trails with two hour exposure, in the northern hemisphere. The bright star near the center is Polaris.
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PHOThunderstorms over western Africa; thunderstorm front is located along the land-sea breeze interface over the west African coastline.
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PHOThe arch of the Milky Way Galaxy, above the Alborz Mountain Range, bordering the Caspian Sea.
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PHOThe zodiacal light is a faint, roughly triangular, whitish glow, seen only in dark night skies, which appears to extend up from the vicinity of the su...
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PHOCalar Alto Observatory in Sierra Nevada, in southern Spain. The giant dome houses a 3.6 meter telescope.
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PHOThe 200-inch Hale Telescope at Mount Palomar. Two men at the giant dome demonstrate the scale.
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PHOStars of the constellation Canis Major, with Sirius the brightest in the night sky, shine above the snow-covered peaks of Alborz Mountains.
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PHOKitt Peak, in southern Arizona, is home to the world's largest solar observatory, with a main aperature of about 2 meters.
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PHOActive Optic system behind the main 3.5 meters mirror of the WYNE telescope, above Kitt Peak.
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PHOThe Mayall 4-meter telescope is currently the largest optical telescope above Kitt Peak, in southern Arizona.
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PHOA panoramic view of Moscow, with the world famous Red Square and Saint Basil's Cathedral at the right, the Kremlin in the center, and the Moskva River...
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PHOHistoric observatories of Harvard College at Harvard-Smithsonian Center for Astrophysics.
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PHOConstellations of Orion and Canis Major, (with the bright star Sirius), set while the second quarter Moon rises above Miankaleh and Gorgan Bay, an imp...
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PHOA conjunction of bright planets Venus and Jupiter in the morning sky, (2008 Jan. 30), as seen above the nature reserve area of Miankaleh, at the shore...
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PHOStars circle the north celestial pole above Mount Damavand, a giant volcano in the Alborz Mountains with a top altitude of over 5600 meters.
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PHONorthern stars are trailing over the 2500-year old tombs of Persian Achamenid kings, located in Naqsh-e Rustam, Fars, Iran.
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PHOOn Oct. 24, 2007, Holmes Comet erupted to a magnitude of 2.5, nearly a million times brighter than it's magnitude 17, 24 hours before. This is one of...
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