The most massive of the moons are the four Galilean moons: Io, Europa, Ganymede, and Callisto, all of which were independently discovered in 1610 by Galileo Galilei and Simon Marius and were the first …

The table below lists the moons of Jupiter in increasing order of distance from Jupiter. The table also lists the name of each moon, the year it was discovered, its distance from Jupiter, its orbital period, …

Sep 3, 2025 · Jupiter's four largest moons were the first moons discovered beyond Earth. They are called the Galilean satellites after Italian astronomer Galileo Galilei, who is credited with their …

Feb 6, 2026 · The four largest moons of Jupiter — Io, Europa, Ganymede, and Callisto — are not just distant dots in the night sky. They are fascinating objects, each with its own story to tell.

Jun 8, 2023 · Four of Jupiter 's moons: Io, Europa, Ganymede and Callisto — known as the Galilean moons — were the first celestial objects to be discovered orbiting an object other than the sun or …

Dec 26, 2023 · Although Jupiter has at least 95 known moons, the four largest, known as the Galilean moons, are the best-known and arguably the most interesting. Io, Europa, Ganymede, and Callisto …

Oct 1, 2024 · Jupiter's Galilean moons are its four largest satelilites Io, Callisto, Europa and Ganymede. They're known as the Galilean moons because the first recorded observation was by Italian …

Discover the four revolutionary moons of Jupiter that overturned astronomy and showcase the Solar System’s most extreme geology.

Jupiter has four large moons which were discovered by Galileo in 1610 using a 20-power telescope. These moons are known as the Galilean moons and they are called Io, Europa, Ganymede and …

May 13, 2025 · Its four largest moons are called the Galileans, after astronomer Galileo Galilei, who discovered them in 1610. The individual moon names are Callisto, Europa, Ganymede, and Io, and …