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In 1965, Soviet astronaut Alexey Leonov became the first person to exit a spacecraft in orbit and perform a spacewalk. Subscribe to Science Channel: http://www.youtube.com/subscription_center?add_user=sciencechannel Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq