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 ...

The Moon was once covered in a vast magma ocean, scientists have confirmed from samples collected by a Chinese spacecraft. A lunar lander, called Chang'e 6, landed on the little-explored far side ...

Liquid from the ocean, scientists believed, could be escaping through cracks in the moon's icy crust. Researchers at Dartmouth College set out to understand exactly how these geysers form ...