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Video discussing the possibility of travelling to the Gliese 581 system, where the recently discovered Earthlike exoplanet, Glise581g, is located. How do we get to the Gliese581 system to visit our sister planet and how long will it take? As told by Stephen Hawking - Into the Universe: The Story of Everything - Educational Purposes Only. I am not the creator/owner of the content of this video. Information on the three part series can be found at http://dsc.discovery.com/tv/stephen-hawking/about/about.html Does Gliese 581g exist? http://www.space.com/10897-alien-planet-gliese-581g-great-debate.html
