NASA's bold plan to park an asteroid near the moon may also test out a new way to protect Earth from dangerous space rocks.Oh, well, any worries about a catastrophic accident are probably the fruits of an overactive imagination. NASA can't fly to the space station without using Russian rockets, and tensions with Russia threaten to make even that relatively modest task an impossibility. 57 years after Sputnik, NASA can't get off the ground.
Last year, the agency announced that it intends to tow a near-Earth asteroid into a stable lunar orbit, where it could be visited repeatedly by astronauts for research and exploration purposes.
© 2014 Stephen Yuen
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