This Hubble time-lapse movie shows the orbits of some of Saturn's icy moons as they circle the planet over an 18-hour period. The video is composed of 33 Hubble snapshots of the planet ...

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the mystery of why no ringed moons exist today.

Phoebe, Saturn’s ninth moon, was discovered in 1898, and astronomers have been vainly looking for others ever since. Their long quest has finally been rewarded. French Astronomer Audouin Dollfus ...

A stunning new photo captures the moon and Saturn engaged in a cosmic game of peek-a-boo. On Jan. 4, Saturn briefly hid behind the crescent moon, escaping the view of skywatchers in Europe ...