SciFriday: Space COVID!

A new academic paper suggests that SARS-CoV-2, the virus causing COVID-19, arrived here last October from outer space. Not surprisingly, the astronomers who co-authored the paper have been trying to prove that life on Earth likewise arrived from space for nearly fifty years. Also: Asteroid Bennu and OSIRIS-REx, signals from space, and a tease of the Gilberts’ new book Giants, Gods, and Dragons. See every new episode at www.SciFriday.tv!