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18

Extraterrestrial Intelligent Life

Lecture no. 18 from the course: Life in Our Universe

Extraterrestrial Intelligent Life

Taught by Professor Laird Close | 28 min | Categories: The Great Courses Plus Online Science Course

How common is simple life is in our universe? What about intelligent life? Start to answer these questions by estimating the prevalence of prokaryotic single-celled microbes and reviewing the process of evolution. Evaluate arguments in the book Rare Earth by Ward and Brownlee claiming that while microbial life is common, only Earth has intelligent life. Finally, touch on how aliens might appear.

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August 30, 2015

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