Abraham Loeb, known as Avi, is a professor of astrophysics at Harvard University and he has done the unthinkable. He has repeatedly been willing to contemplate the existence of nonhuman technology and how it may explain certain perplexing astronomical observations that mainstream science struggles with. Loeb, 61, is the author of Interstellar: The Search for Extraterrestrial Life and Our Future Beyond Earth, a follow-up to his New York Times bestseller Extraterrestrial: The First Sign of Intelligent Life Beyond Earth. On the day we spoke, the US government was preparing to hold a House of Representatives oversight and accountability committee hearing on UFOs with retired air force officer and former intelligence official David Grusch, who turned whistleblower in June, claiming that the US government had retrieved pieces of crashed alien spacecraft.
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