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Grail Spacecraft

WATCH: NASA Satellite's Breathtaking Parting Gift

| Posted 01.13.2013 | Science

By Caleb A. Scharf On December 17th 2012 two small spacecraft called Ebb and Flow punched into the lunar surface at over 3,700 miles an hour. This e...

NASA Gets Set For Spectacular Moon Crash

Posted 12.16.2012 | Science

By: Mike Wall Published: 12/13/2012 05:28 PM EST on SPACE.com Two NASA moon probes will end their gravity-mapping mission in spectacular fashion M...