SciFriday: SARS-CoV-2 May Invade Central Nervous System

New research suggests that SARS-CoV-2 may cause respiratory distress, above and beyond pneumonia, by crossing the blood-brain barrier and infecting the brainstem.

Also: Comet Atlas may be the return of the Great Comet of 1844, and new genome study shows Homo sapiens and Neanderthals interbred—which assumes, of course, they were separate species.

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