We used to think moons were the boring sidekicks of the solar system. For decades, we treated them like cosmic leftovers — ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Enceladus, a moon of Saturn ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...

Several small worlds beyond Jupiter are not just frozen rubble. Beneath their shining skins, many hide oceans of liquid water. New research says those seas do not always stay calm. When the ice lids ...

Neptune is the solar system's most distant planet, a cold, blue ice giant sitting nearly 30 times further from the sun than Earth. At that remote distance, temperatures plunge to nearly minus 200 ...

Hunt for the names of the many moons surrounding our solar system's eight planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space ...

Saturn's moon Mimas, just 250 miles wide, could have a liquid water ocean under its outer icy shell, according to new research led by Max Rudolph at UC Davis. If such moons are the right size, water ...

Dust brought back to Earth by China's Chang'e-6 mission contains rare meteorite relics that could change our understanding of sources of water and other life-essential ingredients in our solar system.

Think of it like a playground swing: if you push at the exact same rhythm that the swing naturally moves, the arc gets wider.