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 planetary ...

If you find Jupiter, you’ll likely see four small dots to the side of ... Discovered by Galileo Galilei in 1610, Io, Callisto, Europa and Ganymede are proving to be fascinating topics of study ...

There are four Galilean moons around Jupiter, the other being Callisto. These icy Jovian moons ... In August Jupiter went into “opposition” as seen from Earth. Caused by Earth passing between ...

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...

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

From the Giant Red Spot to its large ocean-bearing moons, we know a lot about Jupiter already ... three large ocean-bearing moons – Ganymede, Callisto and Europa – using a suite of remote ...

The four largest moons of Jupiter (Io, Europa, Ganymede, and Callisto) can be seen from Earth with just a pair of binoculars. Saturn is almost as large as Jupiter and has 82 moons. It has a system ...