Was ‘Oumuamua’ a light sail probe visiting the Solar System? Dr. Avi Loeb chats.
Dr. Avi Loeb of Harvard University (as well as the Harvard Smithsonian Center for Astrophysics) does a little video about the background and science behind the oddness of the recent fly-through of the Oumuamua object, and why science suggests it might have been a solar sail probe of some sort on a fly-by.