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Io's shadow on Jupiter during perijove 22 (closeup)
Io's shadow on Jupiter during perijove 22 (closeup) NASA's Juno spacecraft captured this stunning image of the moon Io's shadow on September 12, 2019. The spacecraft was performing its 22nd perijove, or close flyby of Jupiter, skimming within 8,000 kilometers of the gas giant's cloud tops. NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill