Now another moon appears to be secretly flooded. Saturn’s moon Mimas, known for its uncanny resemblance to the Star Wars Death Star, might harbor liquid water beneath its icy shell. If true ...

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 ...

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 ...

A Chinese study found that the Moon was wholly covered by a molten “magma ocean” in the early phases of its formation. A study by the China National Space Administration, published in the ...