Whereas Io is the poster child for this mechanism, tidal heating also heats many other worlds, including Io’s neighbor, the icy moon Europa, where the heat is thought to sustain a subterranean ...

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

Striking image and video of 'Steeple Mountain' on Jupiter's moon Io are concept art — but authentic pics do exist According to NASA, the massive mountain on the Jovian moon stands between 3 and ...

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.

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 ...

A NASA spacecraft is set to swing past one of Jupiter’s moon Io, giving astronomers a close-up view of one of the most volcanic spots in the solar system.

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 ...

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 ...

A team of astronomy professors and scientists capture rare, high-resolution optical images of Jupiter’s moon ‘Io’ using a ground-based telescope and new camera technology.

During close flybys of Jupiter’s volcanic moon Io, NASA’s Juno spacecraft captured stunning “bonus science” about the nightmarish world ...

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.

Jupiter's Volcanic Moon Io Looks Hot in Infrared Image From NASA's Juno The spacecraft takes a look at the most volcanically active world in the solar system.