Extraterrestrial life may be closer than we think, says Harvard astronomer

Science fiction has long given the impression that aliens come from far beyond our own small plot of the universe. But Dr. Abraham “Avi” Loeb, a professor of astronomy at Harvard, believes evidence of extraterrestrial life may be much closer: the moon. 

“The moon is interesting for two reasons,” said Loeb. “One, the moon doesn’t have an atmosphere, so anything that impacts the moon will not burn up. Moreover, the moon also doesn’t have geological activity.”

Its surface doesn’t recycle materials the way the Earth’s does, which means anything that has come into contact with it in its lifetime–be it microbial life or single-celled organisms–could remain, in some capacity, on the surface.

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