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, ...

Jupiter’s Galilean Moons Shine In The Sky Tomorrow Night. Alexandra Lozovschi. Updated September 1, 2018 at 1:43 PM. Link Copied. Venus, the moon, Jupiter, and two Galilean moons.

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 ...

How much do you know about Jupiter's Moons? Io, Callisto, Europa, and Ganymede are the four Galilean moons (pictured here in that order). They are some of the most well-known moons in the solar ...

Jupiter's big ocean-harboring moons may have a strong gravitational effect on each other, raising big tides in each others' subsurface seas, a new study suggests.

Finally, this same process repeated, leading to the sequential creation of Jupiter’s four Galilean moons, working from inside to out. According to Batygin, Jupiter’s innermost moons — Io and Europa, ...

Io, one of the four Galilean moons of Jupiter, as seen by the Galileo probe, circa 1997. Space Frontiers/Hulton Archive/Getty Images. Io is the solar system's most volcanically active world.

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 ...

Scientists have discovered 12 previously unknown moons orbiting Jupiter, and one of them is a real oddball. While hunting for the proposed Planet Nine, a massive planet that some believe could lie ...

Jupiter's Galilean Moons May Have Formed Bit By Bit, From Pebbles These large moons’ complex combination of properties could be best explained if they grew slowly from pebbles. By Erika K. Carlson.