"Lec 3 - What is Life?" (January 19, 2010) Lynn Rothschild, Research Scientist NASA Astrobiology Institute Ames Research Center, discusses the need for and attempts to create an operational definition of what it means to be alive. Stanford University: http://www.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford
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Tags: science biology astrobiology physics organic chemistry earth star cosmic planet galaxy big bang universe extraterrestrial life body survive offspring reproduction virus mutation water carbon definition Darwin evolution Star Trek
Duration: 33m 29s
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