Flying Pancakes from Space
Chris Lintott: Interstellar Visitors, 3 June 2021
“... were quick to consider the possibility that it was an interstellar craft.One of them was Avi Loeb, a cosmologist at Harvard, who is thoroughly convinced that ‘Oumuamua represents humanity’s first encounter with an alien artefact. Loeb puts the chances of a natural origin for it at a trillion to one, based ... ”