Space Debris: 1957 – 2015

Almost 20,000 pieces of space debris are currently orbiting the Earth. This visualisation, created by Dr Stuart Grey, lecturer at University College London and

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Shuttle Commander Spots Mysterious Objects | NASA’s Unexplained Files

On a routine mission, Commander Brent Jett spots three mysterious objects. | For more, visit http://www.sciencechannel.com/tv-shows/are-we-alone?/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_user=sciencechannel Check out

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