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

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 ...

Jupiter sets record after 12 new moons discovered 00:14. 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 ...

Flybys of Jupiter’s moon Io, the only known volcanic world in our solar system, have captured images of a massive lava lake and a towering Matterhorn-like mountain.

When Io is closer to Jupiter on its wonky orbit, it experiences a stronger gravitational pull; when it’s more distant, the gravitational pull of Jupiter is a little weaker.

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

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.

Jupiter’s third-largest moon Io is the most volcanically active world in our solar system. New radio images by the ALMA telescope array show the direct effect of this volcanic activity on the ...

On March 9, 1979, Linda Morabito discovered a volcanic plume on Io, a moon of Jupiter, in one of the photos from Voyager 1. She wrote, “I could feel tears begin to roll down my face at the sight ...

An artist’s concept of a lava lake on Jupiter’s moon Io called Loki Patera. The image was made using data from the JunoCam imager aboard NASA’s Juno spacecraft.

Io, the third-largest of Jupiter's many satellites, is just a touch bigger than Earth's moon. It orbits about as close to Jupiter, on average, as our moon does to Earth. This proximity and Jupiter ...