Now, a new moon may join these ranks, as researchers have found evidence of an ocean beneath the icy shell ... but not sufficient for drawing conclusions. The Solar System will always have ...

Saturn's largest moon Titan is an intriguing world ... of previous studies regarding Titan's subsurface ocean. Using a state-of-the-art numerical model known as SLIM (Second-generation Louvain ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Jupiter’s icy ...

This would have meant the newly formed moon was covered entirely in magma: a global magma ocean, so hot and deep that it took at least tens of millions of years to cool and solidify into rock.

For decades. researchers have theorized that resting beneath Callisto's pockmarked surface is a liquid saltwater ocean that spans the entire moon. After taking a closer look at data from 30 years ...