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NASA

The U.S. space agency NASA heralded relevance again this year, thanks to a picture-perfect landing of the Curiosity rover on Mars, and a not-so-nerdy flight director who caught the attention of the world. (Brian van der Brug/Los Angeles Times-POOL)

2012 Year in Review: Astronomical Wonders

Once-in-a-lifetime astronomical events and monumental scientific

achievements drove people to look to the skies and online on Yahoo!

throughout 2012.