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 ...

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 ...

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world.

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, keeping the moon ‘malleable ...

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 ...