If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These ...

Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised ...

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world. Credit: NASA / JPL / DLR A moon of Jupiter about the size of Mercury likely has a ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

And it doesn’t stop there. Callisto is also thought to have liquid water, too. The small, rocky body is constantly being stretched and compressed by Jupiter’s huge gravitational force ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...

A total lunar eclipse occurs this month. Venus transitions from evening to morning, while Mars and Jupiter dominate the late ...

Credit: Alison Klesman (via TheSkyX) We’re back at Jupiter this evening to watch a particularly interesting event: the moon Callisto passing north of Jupiter’s disk, missing a transit or ...

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 ...