Juno reveals surprising subsurface tempertures at Io, remarkably smooth surface

· Nasaspaceflight · July 26, 2026, 11:32 p.m.
Featured Science NASA I/O Jupiter I/O NASA Planetary science
Summary
NASA's Juno spacecraft has revealed unexpected subsurface temperatures on Jupiter's moon Io, along with insights into its remarkably smooth surface, based on data from recent flybys.
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