Interstellar comet 3I/ATLAS is about to be studied from not one but two locations in deep space. The comet has just gone ...

NASA's Juno deep-space probe has sent back the first close-up images of Jupiter's largest moon, Ganymede, to be captured in two decades. Snapped during Juno's flyby of the giant moon on June 7, the ...

It was the closest spacecraft encounter with Ganymede since May 2000. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The photos from a historic ...

Left to right: The mosaic and geologic maps of Jupiter’s moon Ganymede were assembled incorporating the best available imagery from NASA’s Voyager 1 and 2 spacecraft and NASA’s Galileo spacecraft.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Jupiter’s moon ...

The biggest moon in the solar system harbors a salty ocean beneath its frozen surface, according to a study that examined the moon's flickering auroras to probe its interior. A number of worlds in our ...

Astronomers have found the most conclusive evidence yet that a large watery ocean lies beneath the surface of Jupiter’s moon Ganymede. With the discovery, Ganymede joins Enceladus and Europa as ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This article is more than 4 years old. To present the best ...

Scientists have a new map -- the best created so far -- of the largest moon in our solar system, Ganymede, and it is both beautiful and revealing. Ganymede is technically a satellite of Jupiter, but ...