The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These discoveries could change our understanding of this icy satellite.

Even for a spacecraft out near Jupiter, the rings essentially invisible ... other space missions like Juno and Galileo have continued to study them. Scientists believe that the rings formed ...

"Any instrument or spacecraft would stop functioning ... and their presence beyond the distance where Galileo explored. These beams travel along Jupiter's magnetic field, impacting Io or its ...