Astronomer Offers New Theory Into 400-year-old Lunar Mystery

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Image of TLP taken in 1953 courtesy of Columbias Department of Astronomy. The TLP is the small bright spot in the center of the image. Credit: Columbia University
Image of TLP taken in 1953, courtesy of Columbia's Department of Astronomy. The TLP is the small, bright spot in the center of the image. Credit: Columbia University

Columbia astronomy professor Arlin Crotts thinks he has solved a 400-year-old mystery: the origin of strange optical flashes often reported as appearing on the moon’s surface.


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