NASA | OSIRIS-Rex Targets NEO Near-Earth Objects,... http://t.co/vFTvv332
February 08, 2013
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NASA | OSIRIS-Rex Targets NEO Near-Earth...
NASA | OSIRIS-Rex Targets NEO Near-Earth Objects, or NEO's, cross our planet's orbit on a regular basis Only a handful are large enough to pose a threat. One of these objects is asteroid 1999 RQ36, a "leftover" from the formation of our solar system four-and-a-half billion years ago.
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