Asteroid 1999 RQ36, Predicted To Hit Earth, May Get Visit From NASA

08/10/2010 11:49 am ET | Updated May 25, 2011

The asteroid 1999 RQ36 made headlines last week with the announcement that the space rock could hit our planet in 2182. But a handful of scientists have had their eyes on this asteroid since 2007, planning a sample-return mission designed to help us better predict--and avoid--impact hazards.

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