NASA is in the early stages of testing a plan to capture and redirect asteroids nearly the size of the Chelyabinsk meteor that struck Russia. If successful, the captured asteroid will be taken to the moon where astronauts will embark on the most dangerous space walk ever in an attempt to take samples for study. | For more, visit www.sciencechannel.com/#mkcpgn=ytsci1 Watch full episodes! | play.google.com/store/tv/show/Man_v_The_Universe?id=31tMOKZvT24 Subscribe to Science Channel! | www.youtube.com/subscription_center?add_user=sciencechannel Check out SCI2 for infinitely awesome science videos. Every day. | bit.ly/SCI2YT Download the TestTube app! | testu.be/1ndmmMq

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