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 ...

As many as 400 volcanoes are erupting on the surface of Jupiter's innermost moon Io, with virtually every square inch of the moon covered in lava plains.

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 ...

There are hundreds of active volcanoes on Io. The new one is located just south of Io’s equator and the Juno images show fresh lava flows and volcanic deposits covering an area of 32,400 square ...

Enormous lava lakes reaching more than 100 miles across dot Io’s surface. Fire fountains sporadically erupt and volcanic deposits change over a period of months.

Recent strange activity around Jupiter’s volcanic moon, Io, confused and excited scientists. By Oliver Whang Io, the third largest of Jupiter’s moons, is caught in a pressurized, explosive ...

Io — Jupiter's fifth moon — is the most volcanically active body in the solar system. Io's surface is peppered with hundreds of volcanoes, some spewing sulfurous plumes hundreds of miles high.

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

New research confirms Jupiter's moon Io has been a volcanic hellscape for almost the Solar System’s entire 4.57 billion-year history.

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.

Jupiter's moon Io, the most volcanic world in the solar system, was imaged from just 7,260 miles away.