Jupiter's moons resemble little moons! Do they orbit in a regular pattern, similar to how the Moon orbits the Earth? Today, ...

Jupiter's four Galilean moons will line up in front of Jupiter in the early morning sky on Aug. 8. The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up ...

The waning Moon passes Jupiter, Venus, and Mercury before dawn, while Titan’s shadow transits Saturn in the sky this week.

At opposition, Jupiter’s shadow is directly behind it, but later in the year, you can watch one of the moons suddenly reappear some distance away from the planet’s disk.

New research is revealing the secrets of Io, the mysterious volcanic moon of Jupiter. Four centuries after Galileo discovered Io in 1610, NASA sent a spacecraft called Juno on a five-year mission ...

It has 95 known moons and its four largest–Io, Europa, Ganymede, and Callisto–are called the Galilean moons. Io is most volcanically active.

The mutilated surface of Jupiter’s moon Io was revealed in great detail by the Juno spacecraft, which has been exploring the Jovian system since 2016 and recently pulled off the closest flyby of ...

Mission cost: $5.2 billion. Europa, the superstar among Jupiter’s many moons One of Jupiter’s 95 known moons, Europa is almost the size of our own moon.

Twelve new moons orbiting Jupiter have been found — 11 “normal” outer moons, and one that they’re calling an “oddball.” This brings Jupiter’s total number of known moons to a ...

The Solar System has a total of 419 known moons around planets. If we count dwarf planets, asteroids, and other worlds, the ...

Europa Clipper will finally reach Jupiter on April 11, 2030 for a minimum of four years of operation in the Jovian system. But all of that is for the beginning of the next decade.

Jupiter's four largest natural satellites are collectively known as the Galilean moons, in honor of famed astronomer Galileo Galilei, who observed them in 1610.