NASA Launches Twin Spacecraft to Moon for GRAIL Mission

Posted on September 10, 2011

NASA launched a pair of spacecraft to the moon today on a mission to study lunar gravity. NASA says the Gravity Recovery And Interior Laboratory (GRAIL) mission will create the most accurate gravitational map of the Moon to date.

NASA says it will improve our knowledge of near-side gravity by 100 times and of far-side gravity by 1000 times. The mission will place two robotic spacecraft into orbit around the moon. GRAIL-A is scheduled to reach the moon on New Year's Eve 2011, while GRAIL-B will arrive New Year's Day 2012. You can find more information about the mission on the GRAIL website, Take a look:

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