While Ganymede hasn’t yet been observed spewing plumes of water vapor like Saturn’s moon Enceladus, Jupiter’s largest moon is most likely hiding an enormous saltwater ocean.

Malcolm-Jamal Warner was more than Theo. He was a blueprint for dignity Hundreds of thousands of people warned to "stay out ...

Ganymede is the only moon in the solar system with a magnetic field. “This suggests we are seeing the remnants of a deep ocean brine that reached the surface of this frozen world,” said Bolton.

Discovered by Galileo in 1610 while he was messing about with his new telescope, Ganymede is not only the largest moon of the planet Jupiter, but the largest in the solar system.

By Ashley Strickland, CNN (CNN) — Jupiter’s moon Ganymede may have shifted on its axis when a massive asteroid smashed into it about 4 billion years ago, according to a new study.

Ganymede likely has some special characteristics. It isn’t just Jupiter’s biggest moon, but the biggest in the entire solar system by far—about the size of Mercury and our moon combined.

Ganymede, which is 50% larger than our own moon, has an ocean beneath its icy surface – up to 60 miles deep – and is suspected of being able to support primitive life.

A colossal asteroid slammed into Jupiter's largest moon Ganymede with so much power it dramatically and permanently reoriented the moon roughly 4 billion years ago, new research suggests ...

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

Instead, it will send the spacecraft on a 3.1-billion-mile interplanetary bank shot carrying it once past the Earth and moon in August 2024, once past Venus in August 2025 and then twice more by ...

By Ashley Strickland, CNN (CNN) — Jupiter’s moon Ganymede may have shifted on its axis when a massive asteroid smashed into it about 4 billion years ago, according to a new study.