The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing ...

Nasa's Juno probe is bearing down on Io, the most volcanically active world in the Solar System ... the volcanoes and lava flows, and to map them," said Juno's principal investigator, Dr Scott ...