Get all the news you need in your inbox each morning. This article originally appeared on Florida Today: On this date: Galileo discovers three major moons of Jupiter ...

Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more than 400 years ago ...

The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These ...

JunoCam’s sequence of images of the NASA Juno mission's encounter with Jupiter's moon, io, on 3 February 2024. Comparison of Galileo and JunoCam data showing emergence of new volcano on Jupiter ...

Jupiter had its own moons, four of them (now called the Galilean Moons), revolving around the gas giant in defiance of everything the Church held sacred. In 1633, Galileo found himself on trial ...