Far from the warmth of the Sun, some of the coldest-looking worlds in the solar system may be hiding the hottest surprises.

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

On the evenings of Friday, Nov. 28 through Sunday, Nov. 30, a waxing gibbous moon moves past Saturn in the southern sky — an ...

The waxing gibbous moon will appear close to Saturn in the southeastern sky at sunset on Nov. 29 as Neptune lurks unseen ...

Saturn's innermost moon, which resembles the Death Star from Star Wars, may be a "stealth" ocean world, according to new research. Mimas, which is the smallest and closest to Saturn of the ringed ...

A new study reveals how shifting ice shells on icy moons can cause dramatic pressure changes, sometimes enough to boil their hidden oceans. The outer planets of our Solar System are accompanied by ...

Cassini detected fresh organic compounds in ice plumes from Enceladus’s subsurface ocean, strengthening the moon’s potential ...

A mere decade ago, astronomers knew of just 62 moons around Saturn. Today the ringed planet boasts a staggering 274 official satellites. That’s more than any other world in the solar system—and far ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...

This month will bring some striking celestial sights, including one of the year’s best meteor showers and a glowing ...