Astronomers at The Johns Hopkins University, the Observatoire de Paris, and other institutions have solved a nearly 30-year-old mystery surrounding Jupiter’s moon Io, showing that volcanoes there ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

A NASA spacecraft is set to swing past one of Jupiter’s moons Thursday, giving astronomers a close-up view of one of the most volcanic spots in the solar system. The Juno probe, which has been ...

NASA is unraveling Io's volcanic secrets. The space agency's Juno spacecraft has been swooping progressively closer to Jupiter's profoundly volcanic moon Io, and its observations reveal the full scope ...

Jupiter's volcanic moon Io doesn't appear to have a subsurface ocean of magma, resolving some issues about how Io's volcanoes erupt and raising broader questions about similar magma oceans within ...

NASA is creeping closer to a tortured world. The space agency's Juno spacecraft has been swooping ever-closer to Jupiter's moon Io, a place teeming with volcanoes and lava. It's a truly volcanic orb.

NASA's Juno spacecraft recently whizzed past the moon Io. Every night's a marvelous time for a moon dance at Jupiter. Jupiter's moon Io displays a volcanic surface including large, dark patches of ...

Jupiter’s moon Io is the most volcanically active world in the solar system, with hundreds of volcanoes, some erupting lava fountains up to 250 miles high (about 400 kilometers). However, ...