NASA’s Juno spacecraft captured this close view of Io on its 53rd orbit around Jupiter. Credit: NASA / JPL-Caltech / SwRI / MSSS / Thomas Thomopoulos (CC BY 3.0)

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Juno’s orbit around Jupiter will bring it even closer to Io. By year’s end, in late December, the spacecraft will make its closest pass by Io (with another in early 2024).