Guide to some of the sights and characters of the Sochi opening ceremony.
Gravity data gathered by NASA's Cassini probe suggests that the subsurface ocean of Saturn's largest moon, Titan, has a remarkably high concentration of dissolved salts.
For its "grand finale," the Cassini space probe will orbit between Saturn and its innermost ring, before plunging itself into the gas giant's atmosphere.
NASA successfully launched a saucer-shaped space craft designed to prevent crash landings on Mars during test off the coast of Hawaiian island of Kauai.
A NASA landing system that looks like a flying saucer was successfully tested over the Pacific Ocean Saturday.
Curiosity rover: Having spent 687 days on the Red Planet, NASA's Curiosity rover has completed one lap around the sun on Mars.
A feature in a northern sea on Titan appeared suddenly before disappearing again. Researchers attribute this phenomenon to the shifting seasons on Saturn's moon.
Using images captured by the Hubble Space Telescope, scientists have produced a colorful view of our evolving universe.
NASA's sun-watching IRIS observatory captured a recent solar eruption on video, say astronomers.
Images of the blue planet display vibrant auroras, revealing to scientists a new side to the dance of northern light.
NASA is poised to test an inflatable flying saucer that would be used to help land a heavy cargo bay – needed to support human explorers – on Mars. The aim is to create drag as a spacecraft enters Mars' atmosphere.