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[Via] Related posts: Stephen Hawking on Aliens, Real Possibility of Space and Time Travel Happy Birthday, Stephen Hawking! Carl Sagan – A Glorious Dawn ft. Stephen Hawking (Cosmos Remixed) Related posts: Stephen Hawking on Aliens, R... Read Post
In the following video, Carl Sagan explain the concept of “time dilation” and how it would affect us if people would be able to travel at the speed of light. Check it out: [Via] Related posts:Carl Sagan: A Universe Not Made For Us [... Read Post