(PhysOrg.com) -- On December 7, 2001, a Delta II rocket launched from Vandenberg Air Force Base carrying a spacecraft designed to observe a little known area of the atmosphere that experiences some of the most dramatic energy ...
Space Exploration
Dec 9, 2011
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Mysterious "night shining" or noctilucent clouds are beautiful to behold, and are usually seen during the summertime, appearing at sunset. They are thin, wavy ice clouds that form at very high altitudes and reflect sunlight ...
Earth Sciences
Feb 10, 2011
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A rocket experiment that may shed light on the highest clouds in the Earth's atmosphere was conducted September 19 from NASA's Wallops Flight Facility in Virginia.
Earth Sciences
Sep 21, 2009
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The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion is supported ...
Earth Sciences
Jun 24, 2009
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