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

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

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

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 ...

In the 1990s, however, NASA's Galileo spacecraft captured magnetic measurements near Callisto that suggested that its ice shell surface—much like that of Europa, another moon of Jupiter—may ...

In short, Galileo's readings were initially difficult ... Science won't have to wait another 30 years to find proof. NASA's Europa Clipper mission set sail last year and should reach Jupiter ...

Full of extraordinary footage, Robert Stone's blissed-out mind-bender of a movie meditates on the possibilities of life in the universe.

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

NASA's Galileo mission, which launched into space ... If true, that would make Callisto a close sibling to Europa, another moon of Jupiter. Though the existence of an ocean remains inconclusive ...