Astronaut Scott Kelly posted this photo, taken from the International Space Station during his year-long space mission, to ...

Cassini spacecraft data has been used to create the infrared views of Saturn's moon Enceladus. "Reddish areas indicate fresh ...

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 ...