Asteroids, not comets, may have delivered most of Earth's water to the planet when the solar system was young, new data from a probe orbiting a comet suggests.
SpaceX will apparently attempt something truly epic during next week's cargo launch to the International Space Station.
The towering dunes on Saturn's largest moon, Titan, may look similar to the sandy hills of Earth's Sahara, but their origins are completely different, researchers say.
Pluto, get ready for your close-up: A NASA spacecraft has roused itself from the final slumber of its nine-year trek to the edge of the solar system, setting the stage for the...
NASA’s Orion spacecraft has returned safely to Earth after its historic test flight, splashing down in the Pacific Ocean 275 miles west of Baja California at 11:29 a.m. ET.