If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's second-largest moon has more impact craters on its surface than any other planetary ...

And now, new research based on images taken by the Voyager 2 spacecraft has suggested that Miranda, a small Uranian icy moon, ...

The substance can contain up to 1.5 percent water, and if the ringwoodite under the surface has just one percent water in its ...

New findings from China's Chang'e 6 lunar farside samples offer insights into the moon's volcanic past and mantle evolution.

An icy crust lies atop the moon's liquid ocean. The presence of ample hydrogen in the ocean means that microbes at the bottom of the food web -- if any exist -- could use hydrogen to obtain energy ...

Europa's frozen, fissured surface, seen here in a colorized mosaic image from the Galileo spacecraft, hides a liquid ocean that may hold all the ingredients needed for life. Three key ingredients ...

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 ...