Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

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

"It's like a game of billiards around the solar system, flying by a couple of planets at just the right angle and timing to ...

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

What views of the night sky would we have if we had evolved on the Jupiter moon Europa, or one of the TRAPPIST-1 planets?

NASA’s Europa Clipper is using Mars and Earth’s gravity to travel efficiently to Jupiter. The spacecraft will study Europa’s ...

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

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

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

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 ...

NASA's Europa Clipper mission set sail last year and should reach Jupiter and its moons in 2030, while the European Space Agency's JUICE mission should arrive in 2031. Both missions will almost ...