Astronomers have uncovered new evidence that Jupiter’s moon Callisto likely harbors a massive underground ocean, potentially ...

In a nutshell, the discovery of a massive underground ocean trapped deep beneath the Earth’s surface marks a significant shift in how we understand our planet. While this water isn’t in liquid ...

A theory involving a "mushy zone" of ice along the moon’s fissures could explain the enormous plumes erupting from its south pole. Saturn's icy moon Enceladus has long been considered a ...