New simulations show that Jupiter's massive moon Ganymede was knocked off its axis when it was struck by a roughly ...

Last week, researchers released the first-ever geological map of Ganymede, Jupiter's largest moon. Here's the map again, flattened into a 2D, rectangular ...

Flybys of Jupiter and its moon Ganymede conducted by the NASA Juno mission have revealed new Van Gogh-like images of the gas giant, as well as the sounds made by one of its moons.

It was the closest any probe had come to Ganymede since May 2000, when NASA's Galileo spacecraft got within about 620 miles (1,000 km) of the moon's icy surface.

To create the images, Kardasis attached a camera to his telescope and recorded a video of the ice-covered Ganymede, which is the largest moon in the solar system at 3,273 miles (5,268 kilometers ...

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.

Of course, there’s still a lot we don’t know about planets like Jupiter and its moon, Ganymede. In fact, the closest we’ve come to the Ganymede itself is 645 miles.

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.It ...

Evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede has been discovered for the first time. Astronomers used data from NASA’s Hubble Space Telescope to detect vapor rising ...

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.

A new study revealed that a massive asteroid may have hit Jupiter’s moon Ganymede about 4 billion years ago, shifting the moon on its axis.