On Oct. 14, 2024, NASA launched a robotic spacecraft named Europa Clipper to Jupiter’s moons. Clipper will reach the ...

For much of the 20th century, the moon counts for Jupiter and Saturn remained relatively stable at 12 and eight, respectively. But in 1979, NASA's Voyager probes uncovered two previously unknown ...

The Juno mission has been studying the Jovian system—Jupiter, along with its rings and many moons—to learn about the giant ...

These moons were probably captured by Jupiter from solar orbits. Twenty-two of the irregular satellites have not yet been officially named.

Juice will study Jupiter, Europa and two other Jovian moons, Ganymede and Callisto. Both spacecraft will limit their exposure ...

Now that it has launched, the next major milestone for the spacecraft will be a flyby of Mars on March 1, 2025. During this maneuver, the spacecraft will get as close as 300 miles and 600 miles (482 ...

Jupiter’s moons are sort of like opposite lanes on a highway. Two of the new moons are in a group that orbit in the same direction as Jupiter’s rotation called the prograde group. While nine ...

SpaceX readied a Falcon Heavy rocket for launch Monday from Florida to send a $5.2 billion NASA probe on a 1.8-billion-mile voyage to Jupiter to find out if one of its moons hosts a habitable sub ...

Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

Io, Europa, Ganymede and Callisto are, like Earth’s Moon, relatively large, spherical complex worlds. Two previous NASA missions have sent spacecraft to orbit the Jupiter system and collected ...

Juice will study Jupiter, Europa and two other Jovian moons, Ganymede and Callisto. Both spacecraft will limit their exposure to Jupiter's intense radiation belts that could damage onboard systems.