NASA astronauts perform spacewalk outside the International Space Station

NASA astronauts performed a spacewalk outside the International Space Station. The spacewalk will prepare for the future deployment of additional solar panels for the station, according to NASA. SUBSCRIBE to ABC News: https://bit.ly/2vZb6yP SEE MORE at http://abcnews.go.com/ LIKE ABC News on FACEBOOK: https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER : https://twitter.com/abc #abcnews

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