A new look at the moon from two vantage points

The two spacecraft on NASA's Gravity Recovery and Interior Laboratory will work in tandem in a delicate dance, gathering data that will help scientists gain a better understanding of our nearest neighbor.It has been described as a cosmic ballet — two spaceships in a delicate, silent dance 230,000 miles from Earth, correcting their course in tandem with air thrusts softer than a human breath, their instruments so fine-tuned they can detect a shift in gravity that pulls them no farther than the ...

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