Jupiter's moon Io is the solar system's most volcanic body thanks to a gravitational tug of war that rages below its surface. But now scientists know the violent moon has always been this way.

Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...

The spacecraft came to within 930 miles of Io's surface—the closest any spacecraft has flown by the Jovian moon in over 20 years.

NASA's Juno mission has captured stunning new views of Jupiter's moon Io and its lava-scarred surface.

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'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 ...

There are new, high-quality images of Jupiter's moon, Io, thanks to the nearest flyby of the celestial body by a spacecraft in decades. NASA released images Saturday taken by the Juno spacecraft ...

Io’s volcanic gases interact with Jupiter’s powerful magnetosphere to create the ominous-sounding “ Io plasma torus,” bathing Io in radiation.

Jupiter's moon Io is a volcanic hellscape—and has been since the solar system began Io is the most volcanic body known to science, and researchers have puzzled over its history for years. A new ...

The Galilean moon Io has already lost sextillions of tons of sulfur, and will someday run out of this element.

Io, Jupiter's third-largest moon, is covered in lakes made of lava, according to a new paper in the journal Nature Communications Earth and Environment.

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 ...