If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's second-largest moon has more impact craters on its surface than any other planetary ...

Newly released high-resolution images have revealed Jupiter’s moon Callisto in extraordinary detail. The surface features ...

Jupiter reaches opposition, making it brighter and larger than at any other time this year. A rare transit of its moon ...

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world. A moon of Jupiter about the size of Mercury likely has a several-miles-deep ocean ...

Yes, even Jupiter's moons produce auroras. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In a landmark observation by a team of international ...

Although Europa is the fourth largest of Jupiter’s 95 moons, it’s the smallest of the Galilean moons – the largest being Ganymede. With an equatorial diameter of about 3,100 kilometres, Europa is ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

Live Science reports on Jupiter’s opposition on January 10, 2026, explaining what it means, how bright Jupiter will appear, where to find it in the sky, and how to see the planet and its four main ...

Explore seven factual aspects of Jupiter, including its size, moons, rotation, atmosphere, rings, formation, and magnetic field based on NASA findings.

Callisto, Jupiter's second-largest moon, may have a rocky surface with an ocean beneath the surface. If there was a contest for the most interesting moon in our solar system, Callisto would be a ...