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Naked Science: Close Encounters

Dr. Rosalba Bonaccorsi of the University of Trieste, Italy, collects samples of sand from the Mojave desert for the study of microbial life in an extremely dry environment. The purpose of this study is to determine how microbial life may survive on the extreme environments of other planets, in particular Mars.

Are aliens abducting humans? Skeptics argue these claims are inspired by pop culture, but scientists want to know if ET could survive the voyage