Two new moons have been discovered orbiting Jupiter, bringing the total number of natural satellites orbiting the gas giant ...

Catch the solar system’s largest planet satellite sharing the constellation Gemini the Twins with our Moon this morning ...

Look east around 4 a.m. local time, just before dawn, to see the slender form of the crescent moon climb above the horizon.

Their orbits are tilted relative to Jupiter’s equatorial plane by 0.36 and 1.09 degrees. Those would be quite small angles for more distant moons, but closer moons usually have tiny tilts.

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits Jupiter once about every 42 hours, according to the Planetary Society.

The solar system's largest moon, Ganymede, which orbits the largest planet, Jupiter, was hit by an asteroid four billion years ago that shifted the gas giant's satellite on its axis, new research ...

Jupiter's moon Ganymede was hit by an asteroid about 4 billion years ago that was so large the moon's axis shifted as a result, study finds.

Scientists believe the moon's water, chemistry and energy could support life. Marking the latest foray into space exploration, NASA has launched its first mission to explore Jupiter's moon, Europa ...

Europa, one of the four large moons of Jupiter first seen by Galileo 414 years ago, may have a deep, salty, global ocean hidden beneath a thick crust of ice. Where there is water, there might be life.

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 or more (15 kilometers to 24 kilometers) thick.

Once the spacecraft reaches Jupiter in 2030, it will orbit the planet and begin making 49 close flybys of Europa in the spring of 2031, according to NASA.