History & Biographies 
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Featured Article
Solar Eclipses: Babylon
Introduction Babylonian clay tablets record the earliest total solar eclipse seen in Ugarit on May 3, 1375 BC. Babylonian astrologers kept careful records about celestial happenings including the...
Featured Resource
NASA 50th Magazine
The National Aeronautics and Space Administration celebrated its 50th anniversary in 2008. Click the image below to access a wealth of information, image galleries and other content relating to NASA's first 50 years. Open-Letter from NASA...
