Enceladus may have a warm ocean beneath its icy surface, but it may also be shooting through that crust in big sheets, perhaps filled with sea monkeys.
You don't need to be Darth Vader to have fun with your own Death Star. This inflatable "Star Wars" space station from ThinkGeek lights up and is impervious to destruction from Rebels -- unless they have a sharp object.
What if it were Saturn's rings or Jupiter's red spot coming up over the horizon? Russia's space agency imagined what life on such a parallel planet (or moon) might be like.
As part of a NASA-funded program, a needle-like robotic vehicle is plunging the icy depths at our planet's poles. Jupiter's moon Europa could be next.
NASA has a bold new plan to steal a boulder from an asteroid and bring it back for orbit around the moon, to help test an Earth-defense system.
Lunar Mission One wants to bury a time capsule deep below the surface of the bottom of the moon, and it's asking the public to foot the bill. So far, humanity seems willing to chip in.
Observations from the Hubble Space Telescope have confirmed that there's a salty subsurface ocean on Jupiter's largest moon.
NASA says new observations from the Hubble Space Telescope confirm the presence of a subsurface ocean on Jupiter's largest moon.
Scientists think that particles found by the Cosmic Dust Analyzer on the Cassini spacecraft could hint at a watery world where life could thrive on Enceladus, one of Saturn's moons.
Saturn's captivating moon Titan once again draws the eye as NASA releases a color mosaic showing the sun shining on its polar seas.