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

Astronomers have discovered a panoply of new moons orbiting Saturn, bringing the ringed gas giant's total up to 274 moons—far ...

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

Saturn surpasses Jupiter with 128 newly discovered moons, becoming the planet with the most moons in our solar system.

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

Scientists have discovered a new form of water called "plastic ice VII" that exists under extreme pressures and temperatures, ...

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

Even before the recently announced moons, Saturn had more than anyone could reasonably keep track of. Now, astronomers have ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.