Juno’s trajectory passes by Io every other orbit, flying over the same part of the moon each time. In December 2023, Juno came within about 930 miles of Io's surface – equal the distance from ...

Jupiter’s third-largest moon Io is the most volcanically active world in our solar system. New radio images by the ALMA telescope array show the direct effect of this volcanic activity on the ...

Jupiter’s moon Io may have been volcanically active throughout its life. In this image of Io, taken by NASA’s Juno spacecraft in 2023, a bright volcanic plume can be seen on the left, just ...

The volcano-laced surface of Jupiter’s moon Io was captured in infrared by the Juno spacecraft’s Jovian Infrared Auroral Mapper (JIRAM) imager as it flew by at a distance of was about 50,000 ...

The mutilated surface of Jupiter’s moon Io was revealed in great detail by the Juno spacecraft, which has been exploring the Jovian system since 2016 and recently pulled off the closest flyby of ...

NASA's Juno mission has gathered new findings after peering below Jupiter's cloud-covered atmosphere and the surface of its fiery moon, Io. Not only has the data helped develop a new model to ...

While Earth’s volcanoes occur in localized hotspots like the “Ring of Fire” around the Pacific Ocean, Io’s volcanoes are distributed all over its surface. A global magma ocean under about 20 to 30 ...

The volcanic moon, which orbits the gas giant Jupiter, has long been written off as a possible home for alien life, as its extreme temperature and lava-covered surface make it wholly inhabitable ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about geologically active moons.

A global "ocean" of molten rock sloshes beneath the surface of Jupiter's moon Io, feeding the fiery satellite's prolific volcanism, a new study finds. IE 11 is not supported.

Jupiter's innermost large moon, Io, is one of the most dramatic bodies in the Solar System. It's the most volcanically active thing we've ever seen, and its surface is spotted with pools of liquid ...