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, is exhibiting geothermal activity far beyond what scientists had anticipated, with heat levels ...

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 ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body in our solar system. As demonstrated by explosive news from NASA on Tuesday ...

Behold the volcano-blanketed moon, Io. After swooping by Jupiter's tortured moon on Feb. 3, NASA's Juno spacecraft beamed back some of the closest-ever images of this unique world. The agency's deep ...

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 ...

A NASA spacecraft made its closest-ever approach to Jupiter's moon Io, coming within 930 miles of the "surface of the most volcanic world," and the space agency released new images of the flyby. The ...