NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in ...

The hellish surface of a moon of Jupiter known as Io is riddled with ... Juno will use a more-distant flyby of Io on March 3 to look at the hot spot again and search for changes in the landscape.

Io is the most volcanic ... being squeezed and released like a stress ball by Jupiter's crushing gravity. This external force superheats the rock beneath Io's surface, transforming it into magma ...

A NASA spacecraft orbiting Jupiter has just witnessed some of the most extreme volcanic eruptions ever ... Related: Space photo of the week: An eerie look at Io, the most volcanic world in the solar ...

Immense energy from frictional heating on Io melts portions of its interior ... from the estimated 400 volcanoes that riddle its surface. Read the full story ...