At the European Geophysical Union General Assembly held in Vienna last week, NASA’s Juno mission principal investigator Scott Bolton illustrated some new discoveries offered by the Juno space probe, including some regarding Io, Jupiter’s volcano-covered moon. Io was also studied by a team of researchers who used the ALMA radio telescope to map the movements of sulfur isotopes and reconstruct the tidal heating that generates the intense volcanic activity. The results were published in an article in the journal “Journal of Geophysical Research: Planets”.