gravity mapping the moon

Image via NASA/JPL

The Gravity Recovery and Interior Laboratory (GRAIL) probes, launched in September, kicked off the new year by going into operational orbit around the moon on December 31st and January 1st. The solar-powered probes are tasked with creating the most detailed map of the lunar gravity field to date, 100 times more accurate on the near side and 1000 times more accurate far side of the moon.

The results may provide insight into the the hypothesis that a low velocity collision between a former sibling moon and Luna is what creates the significantly more mountainous geography of the far side.

For more information, check out this article published by NewScientist and the GRAIL website at NASA.

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About imran

Twenty-something in Washington, DC.

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