‘We’re Probably Not Alone’: Harvard Astronomer Believes Alien Debris Passed Earth In 2017

CAMBRIDGE, Mass. (CBS) — A Harvard University professor is making the case that we are likely not alone in the universe. Astronomer Avi Loeb’s new book “Extraterrestrial” examines the 2017 flyby of a space object that he believes was truly out of this world.
“At first people thought, well it must be a rock, just like the asteroids or comets that we have seen before within the solar system,” Loeb told CBSN Boston’s Paula Ebben. “But as they got more