Saturn's innermost moon, which resembles the Death Star from Star Wars, may be a "stealth" ocean world, according to new research. Mimas, which is the smallest and closest to Saturn of the ringed ...

Enceladus has long been considered a prime candidate in the search for life beyond Earth because of its hidden ocean and ...

The ocean hidden under the icy shell of Saturn's moon Enceladus harbours complex organic molecules, a study said Wednesday, offering further evidence that the small world could have all the right ...

The outer solar system is awash with liquid water. A briny ocean is concealed beneath the icy crust of Jupiter’s fourth-largest moon, Europa—with more water than all of Earth’s oceans combined. A ...

The case for a newborn ocean on Saturn's moon Mimas continues to build.

Scientists think Uranus’s moon Ariel once had a hidden ocean beneath its icy shell. The moon’s orbit stretched enough to ...

Scientists think one of Uranus' moons may once have had an ocean roughly 100 miles deep — about 40 times deeper than the ...

Mysterious sounds emanating from the depths of the Southern Ocean continue to astound scientists as the latest research suggests the strange noises may have been a “conversation” between unidentified ...

New data from India's Chandrayaan-3 mission suggests that the Moon may have once had an ocean of lava on its surface sometime in the past. The data is covered extensively in a new paper published in ...