BERKELEY, Calif. — In the cold, swirling clouds above Jupiter’s poles, scientists have spotted something odd: dark, oval-shaped vortices visible only in ultraviolet light that come and go like ghosts.
New analysis on 2017 Hubble images of the Jupiter-family comet, 41P/Tuttle–Giacobini–Kresak (41P/TGK), indicates that the comet underwent a spin reversal between April and December 2017. While this ...
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