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Both GRAIL craft orbiting the moon

1 Jan 2012, 22:42 UTC
Both GRAIL craft orbiting the moon
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Cheers erupted in mission control as the deorbit burn appeared successful Sunday evening to put the second GRAIL spacecraft in orbit around the moon, NASA announced via Twitter.Both GRAIL spacecraft are now orbiting the moon. Starting in March, the mission will map the moon’s lumpy gravity field in detail 100 to 1,000 times better than existing surveys.Both spacecraft were launched Sept. 10 by a

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