NASA

NASA's MAVEN probe will assess whether water on Mars evaporated or froze 3.5 billion years ago.

The SpaceX launch to the International Space Station has been rescheduled for Sunday at 1:52 a.m. EDT: NASA's live stream begins at 12:45 a.m.

The new U.S. program to ferry astronauts to the International Space Station will also accommodate tourists, for a hefty price.

NASA's move is aimed at ending U.S. dependence on Russia to fly crews to the International Space Station by 2017.

Cooperation between the U.S. and Russia on space projects has been jeopardized over the latter's role in the conflict in eastern Ukraine.

Google is backing a second project in the field of quantum computing, based on superconducting electronics, in collaboration with UCSB.

NASA's SLS rocket could bring humans to Mars and asteroids within 20 years, thrilling earlier skeptics.

Perseid meteor shower activity may peak Aug. 12-13 this year, but it might be best viewed around now because of the supermoon in August.

The new rover will carry more sophisticated hardware to determine if the red planet will ever be habitable for humans.

Scientists said they would have to position all spacecraft on the opposite side of Mars before the comet comes closer.

If Voyager 1 is still in the heliosphere, scientists will observe a reversal in the direction of the solar magnetic field before the end of 2015.

“A profitable asteroid industry is upon us.”

NASA will air the Apollo 11 broadcast at 10:39 p.m. EDT on Sunday.

The Cygnus spacecraft's 3,000 pounds of cargo included test satellites and odor-resistant gym clothes.

NASA announced on Monday that it hopes to find alien life in the next 20 years using telescope technology.

The mission will deliver 3,669 pounds of cargo to the Expedition 40 astronauts aboard the space station.

The Orb-2 launch is scheduled for 12:52 p.m. EDT.

NASA signed a $2.8 billion deal with Boeing to build a rocket that would eventually be used to send astronauts to Mars -- and beyond.

ISS astronauts snapped some amazing photos of Hurricane Arthur from 260 miles above the Earth that capture the immensity and power of this storm.

The U.S. space agency will launch the Orbiting Carbon Observatory-2 on Tuesday from California.

NASA will once again attempt the launch of a high-altitude balloon carrying the Low-Density Supersonic Decelerator test vehicle Saturday.