Saturn long held the record for having the most moon, however just a few months ago after the discovery of more moons ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

Often overshadowed by Europa and Ganymede, Callisto is actually one of the largest moons in our solar system. In this video, ...

Explore NASA's cancelled Europa mission and learn why Europa is a key target in the search for extraterrestrial life.

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

While the moon once had a weak magnetic field generated by a small molten core, the team's research suggests it likely wouldn ...

New observations from NASA's James Webb Space Telescope have revealed that auroras on Jupiter are hundreds of times brighter ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' ...

Jupiter joins Mercury in early twilight as Mars lingers with Leo after dark. Saturn is visible in the morning, meeting ...

Recent calculations suggest that Jupiter, our solar system's largest planet, was once more than double its current size.

The Space Telescope Science Institute in Baltimore, which operates the Webb and Hubble telescopes, released a video of Jupiter's tempestuous roiling auroras, which you can watch above.

Researchers at the University of Leicester have captured stunning images of Jupiter's auroras using the James Webb Space Telescope.