S cott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

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

Over the course of the next year and a half, the Juno spacecraft will carry out a total of nine flybys of Io. Two of the close encounters will take the probe to within 930 miles of the moon's surface.

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits Jupiter once about every 42 hours, according to the Planetary Society.

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 ...

After zipping past the massive Ganymede in 2021 and the icy Europa in 2022, Juno executed its first close flyby of Jupiter’s volcanic moon Io, the innermost of the planet’s four large ...

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'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 ...

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.

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 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 ...

Io is about to take center stage as NASA's Jupiter-studying Juno spacecraft turns its cameras and instruments on the fiery moon. In anticipation of capturing new Io views, NASA released a ...