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.

The last time scientists had any data on Jupiter’s water it came from the Galileo probe. That mission, which wrapped up in late 1995, returned results that suggested that Jupiter was extremely ...

The Jupiter orbiter is the second spacecraft to visit the moon and the gas giant it orbits, after the Galileo probe. The next big moment for Juno is coming in Sept. 2022 when the probe settles in ...