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Stephen Hawking is a British theoretical physicist who has dedicated much of his life to probing the laws of time and space described by Einsteins Theory of Relativity.
Carl Sagan was an American astronomer who played a major role in the development of the American space program, as well as his contributions to planetary science.
Arthur C. Clarke is a British author, most famous for the science fiction classic, 2001: A Space Odyssey, and his optimistic vision for mankind exploring the galaxy.
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I purchased this DVD because it had such great and interesting figures being interviewed, but found the whole thing rather dry and uninteresting.Published 15 months ago by anonymous
These are some of my favorite thinkers. Content is dated, too short, poorly edited . Hard to follow. But short in this case is good.Published 21 months ago by Bryan blackburn
This was a gift for my grandson and he was very pleased. What makes him happy, makes me happy.Published on May 27, 2011 by L. Crusing