NASA probe to inspect the solar system's most active volcanic world, Jupiter's Io

After exploring Ganymede and Europa, NASA's Jupiter probe Juno is about to set its sights on the third of the giant planet's four main moons — the mysterious volcanic moon Io.

NASA probe to inspect the solar system's most active volcanic world, Jupiter's Io
After exploring Ganymede and Europa, NASA's Jupiter probe Juno is about to set its sights on the third of the giant planet's four main moons — the mysterious volcanic moon Io.