MIT tether could aid asteroid missions

Using a tether system devised by MIT researchers, astronauts could one day stroll across the surface of small asteroids, collecting samples and otherwise exploring these rocks in space without floating away.

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<p><a href="http://www.physorg.com/news109955366.html">MIT tether could aid asteroid missions</a></p> <p>Using a tether system devised by MIT researchers, astronauts could one day stroll across the surface of small asteroids, collecting samples and otherwise exploring these rocks in space without floating away. </p>