The sun’s extreme ultraviolet light. Credit: NASA/Goddard/SDO AIA Team

Scientists Shine a Light on UV as a Coronavirus Killer

Here’s how ultraviolet light can (and can’t) help in the fight against Covid-19

Ultraviolet light, with a shorter wavelength than visible light, is just beyond our vision, and it’s powerful. You may have heard someone ask whether UV light could be shined on or inside people to cure Covid-19. No, it can’t (though it…

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Robert Roy Britt

Robert Roy Britt

Health & science writer. Independent journalist covering physical health & mental wellness. My new book, “Make Sleep Your Superpower,” is coming Nov. 1.