NASA

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.

The Z-2 prototype is being upgraded by NASA with a launch date in mind.

American space companies said they still have contracts for Russian equipment, but they're rushing to develop their own technology.

Over the years, Hubble has been instrumental in uncovering details about planets and their moons.

The 148-second video transmission reached a maximum data transmission rate of 50 megabits per second.

The heat shield is made of a coating called Avcoat, which prevents the transfer of extreme temperatures to the spacecraft’s crew module.

U.S. report makes the case for manned Mars mission, but says the effort will be an international collaboration.

NASA has announced the next phase of certification for its Commercial Crew Program which is working with commercial partners to bring manned launches back to America.

“It’s not only that the Russians are taunting us. They are massively overcharging.”

A group of amateurs has successfully communicated with an abandoned NASA spacecraft.

The new findings are expected to provide more clues about the interior of the moon, according to scientists.

According to the unvetted story, which ran on CNN's iReport section, NASA scientists put the odds of an impact at 1 in 2.04.

In the latest from a partnership with NASA, SpaceX will unveil its latest ship model, meant to shuttle astronauts to and from the International Space Station.

The trio of astronauts who will fly to the International Space Station on Wednesday are in the final stages of preparation.

"We were overwhelmed to see people participate from so many countries," says NASA official.

NASA recently discovered a fresh crater on the surface of the Red Planet, and scientists pinpointed the exact day the impact occurred.

A group of amateur scientists will attempt to reboot a forgotten NASA space probe.

New observations from the Hubble Space Telescope have captured Jupiter's Great Red Spot at its smallest size ever.