Jupiter’s four largest satellites, the Galilean moons, are named after consorts of the Roman god Jupiter: Io, Europa, Ganymede, and Callisto. Credit: NASA/JPL/DLR Although they were identified ...

Growing moons. In general, researchers agree that the four Galilean moons — Io, Europa, Ganymede and Callisto — probably formed from a disk of gas that surrounded Jupiter in its infancy.

Io orbits closest to Jupiter, out of the four Galilean moons. Io has been studied by spacecraft from Pioneer 10 and 11 in 1973 and 1974, all the way up to New Horizons in 2007, augmented by Earth ...

The origins of Jupiter's Galilean moons is a long-standing mystery. But new research suggests a promising pathway for how they may have formed. From bottom to top is Io, Europa, Ganymede, and ...

This montage shows views of Jupiter's four 'Galilean moons' as captured by the LORRI camera system on NASA's New Horizons spacecraft in 2007 as it picked up extra momentum for its target, the dwarf ...

For decades scientists have struggled to understand the strange density differences in Jupiter’s four Galilean moons—which, in order from closest to the planet to farthest from it, are Io ...

95 moons (that we know of so far) orbit Jupiter, the largest planet in the Solar System. From the volcanic landscape of Io to the icy mysteries of Europa, here are some amazing facts about the 10 ...

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

The four larger moons mentioned above, also known as the 'Galilean moons', account for 99.997 percent of the total mass of Jupiter's moons.The other 91 moons account for only 0.003 percent. In ...

Researchers reported auroras around Jupiter’s two largest Galilean moons for the first time and found new features in the auroras of volcanic Io and icy Europa. Share full article. 15.

Jupiter’s Inner Moons Reveal Ancient Secrets. For their study, Batygin and Adams examined Amalthea and Thebe, two of Jupiter’s inner satellites. This family of satellites is low-mass and orbits even ...

Juice will pay particular attention to three of Jupiter’s ‘Galilean moons’: Ganymede, Europa, and Callisto. > Watch the Launch Live. These three moons are thought to harbor hidden oceans beneath their ...