This image provided by NASA, processed by Kevin M. Gill, shows Jupiter's moon Europa captured by the Juno spacecraft on Sept. 29, 2022, with north to the left. Research published Monday, March 4, 2024, suggests there's less oxygen on the icy surface of Jupiter's moon Europa than thought — and that could affect what if any life might be lurking in the moon’s underground ocean. (Kevin M. Gill/NASA/JPL-Caltech/SwRI via AP)
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