Is Contacting Aliens Safe? With Dr. David Grinspoon

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Should we contact aliens?
Should SETI conduct METI, Messaging Extraterrestrial Intelligence? Does Intelligent life exist? Are aliens hidden in the universe for some reason.

Dr. David Grinspoon is an Astrobiologist, author, and Senior Scientist at the Planetary Science Institute.

Link:
David Grinspoon
Website: http://funkyscience.net/
David's twitter: https://twitter.com/DrFunkySpoon

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