Jupiter’s volcanic moon, Io, is exhibiting geothermal activity far beyond what scientists had anticipated, with heat levels ...

This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft. Io, ...

Jupiter's moon Io stands alone among the solar system's moons. It has more than 400 active volcanoes, and its surface is home ...

Jupiter’s moon Io has revealed a breathtaking spectacle through the lens of the James Webb Space Telescope (JWST).

Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and ...

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During its close flyby of Jupiter's moon Io on December 30, 2023, NASA's Juno spacecraft captured some of the most detailed imagery ever of Io's volcanic surface. In this image, taken by the JunoCam ...

The week features the observation of transient celestial events, including a recently identified supernova candidate (AT 2025yyn) in Ursa Major and Comet C/2025 A6 Lemmon, which is nearing naked-eye ...

Through a vast ocean, Jupiter's moon Europa is an exciting target for research in the search for life. Two space probes are ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.