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.

Io is Jupiter's third-largest moon, spanning roughly 2,300 miles (3,700 kilometers) across, which makes it slightly bigger than Earth's moon. It orbits Jupiter at a distance of around 262,000 ...

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 ...

Moon-quakes first measured by the Apollo astronauts have been attributed to these tides. The tides that Jupiter raises on Io, however are powerful enough to induce sufficient friction in that moon ...

Juno reveals 'smooth as glass' lava lake on Jupiter's moon, Io Scott SutherlandMeteorologist, Science Writer Published on Apr. 25, 2024, 8:05 AM ...

After making the closest Io flyby of any spacecraft in more than 20 years, NASA's Juno probe returned amazingly detailed imagery that will help scientists discover the source of the small moon's ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body in our solar system. As demonstrated by explosive news from NASA on ...

Jupiter’s moon Io, the most volcanically active body in the solar system, is littered with hundreds of erupting volcanoes. High-resolution images now reveal several dozen lava lakes, researchers ...

Scott 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, ...