Jupiter, the largest planet in our Solar System, is 11 times wider than Earth, and has a mass 2.5 times greater than all of ...

As the innermost of Jupiter’s Galilean moons, Io offers a glimpse into some of the most extreme geologic phenomena in the solar system. Roughly the size of Earth’s Moon, Io’s surface is ...

Close-up of the craters and furrows on Ganymede's surface. Credit: NASA/JPL-Caltech/SwRI Aside from being the biggest of Jupiter's 95 moons, Ganymede is best known for its axial tilt and deep ...

NASA spotted something moving in one of the moons of Jupiter. Some natural satellites have similar structures to the Earth, ...

Juno arrived at Jupiter in 2016 and has made over 60 orbits of the giant planet, but for the past few years it has been edging closer and making fly-bys of the large Galilean moons.

At last count, Jupiter has 95 moons, but the four main ones — Ganymede, Callisto, Io and Europa — were discovered in 1610 by famed Italian astronomer Galileo Galilei.

Star Gazers STGZ448 January 20-26, 2025 “Jupiter’s Moons Right Now Jan 2025 ... THE FOUR BIGGEST KNOWN AS THE GALILEAN MOONS ARE IO, EUROPA, GANYMEDE, AND CALLISTO.

Slightly larger than Earth's moon, Io is the innermost of Jupiter's Galilean moons, which in addition to Io include Europa, Ganymede and Callisto.

Europa, the superstar among Jupiter’s many moons One of Jupiter’s 95 known moons, Europa is almost the size of our own moon. It's encased in an ice sheet estimated to be 10 miles to 15 miles ...

JANUS, which is the high-resolution camera on the Jupiter Icy Moons Explorer, received a solid workout during the fly-by of Earth over Aug. 19 and Aug. 20.

NASA’s Europa Clipper spacecraft launched at 12:06 p.m. Monday, beginning a nearly six-year, 1.8-billion-mile voyage to Jupiter, where it will study the frozen moon Europa, scanning below its ...