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.

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