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 ...

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits ...

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 Io–Jupiter system is similar, in scale, to an exoplanet orbiting an M-dwarf, and if volcanic Io doesn't have a magma ocean then perhaps exoplanets on close orbits around M-dwarfs don't either.

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

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 ...

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.

In our favorite space image of the week, NASA's Juno spacecraft got an unprecedented look at Jupiter's volcanic moon Io from just 930 miles away.

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.

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 robotic Juno spacecraft is delivering the fresh data on Io with a series of flybys, each getting closer to Jupiter's volcanic moon until a pair of close-up encounters at a range of less ...

Jupiter’s moon Io is the best example of a world of fire, freckled with volcanoes and cracked by lava spills. There are many competing theories to explain the workings of this fire-orb.