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

Astronomers have uncovered new evidence that Jupiter’s moon Callisto likely harbors a massive underground ocean, potentially ...

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 ...

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

The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These discoveries could change our understanding of this icy satellite. Callisto, ...

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

In late January this year, NASA’s Psyche spacecraft turned its cameras to the sky and captured some incredible images. The ...

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 ...