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3:30pm, September 19, 2014

The great asteroid grab

NASA plans to nab an asteroid and bring it into orbit around the moon. The mission is billed as a stepping stone to Mars, but critics question whether redirecting space rocks will help put humans on the Red Planet. Meghan Rosen detailed the debate in “A rocky road to Mars” (SN: 8/23/14, p. 22).

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