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 ...

If Io has been consistently volcanic for billions of years, then this also means it will have recycled its deeper geological layers many times over, says Lionel Wilson at Lancaster University in ...

The encounter was Juno's second with Io (pronounced EYE'-oh) after it first approached for a close-up view of the moon's rocky, fiery landscape on Dec. 30.

A massive volcanic eruption has been spotted emerging from Jupiter's moon Io. The eruption was observed in the Fall of 2022 using the Io Input/Output observatory (IoIO) by Planetary Science ...

Jupiter’s moon Io has been continuously shaped by volcanic activity for billions of years — possibly even for the Solar System’s entire 4.57-billion-year history, a study suggests.

NASA has eight more flybys of Io planned for Juno over the next 18 months, including two that will pass within 930 miles (1,500 kilometers) of the surface to provide perhaps our best view yet of ...

These findings are set to appear in the May 11 edition of Nature. Back in the 1970s, scientists began to suspect that Io—Jupiter’s fourth largest moon—featured a tumultuous and dynamic surface.

(With a diameter of about 2,260 miles, or 3,640 km, Io is slightly larger than Earth's moon.) The $1.1 billion Juno mission arrived in orbit around Jupiter on July 4, 2016.