New observations of the most volcanic world in our solar system solve a mystery that began with Voyager 1 CNNScientists are starting to learn why this moon keeps erupting with volcanoes The Washington PostNASA’s Juno Mission Uncovers Heart of Jovian Moon’s Volcanic Rage NASAIo Probably Doesn’t Have a Global Magma Ocean After All EosNo shallow magma ocean for Jupiter's moon Io, research suggests Phys.org