NASA

Scientists at the U.S. National Snow and Ice Data Center, using satellite data from NASA, said the ice cover reached its minimum extent on Sept. 10, standing at 1.60 million square miles.

Leroy Chiao has completed four missions into space and performed six spacewalks. Aliens are out there, he said.

NASA will launch its asteroid-sampling spacecraft from Cape Canaveral Air Force base in Florida at 7:05 p.m. EDT Thursday.

The spacecraft, which aims to understand how all rocky planets in our solar system, including Earth, formed and evolved, was originally scheduled for launch earlier this year.

A rumored new study would get rockets to Mars in record time.

A top scientist at NASA says we're seeing global temperature rises that are unprecedented in the past millennium.

The scramjet engine, with its air-breathing propulsion system, uses hydrogen as fuel and oxygen from the atmospheric air as the oxidizer.

The STEREO-B spent 22 months alone in the void until Sunday when NASA successfully reestablished contact with the spacecraft.

NASA calls the low levels of Arctic sea ice the "new normal."

The trailer for "Hidden Figures," which stars Taraji P. Henson, Janelle Monae and Octavia Spencer as NASA mathematicians in the 1960s, has been released.

Three new studies, based on data collected by NASA's Kepler space telescope, aim to understand the complex relationship between the spin rate of stars and their internal structure.

Six companies, including Boeing, Lockheed Martin and Orbital ATK, have been selected to develop full-sized ground prototypes and concepts for deep space habitats.

Comprising over 1,000 high-resolution images, this is the single-largest dump of images captured by the Mars Reconnaissance Orbiter’s HiRise camera.

The camera, dubbed the HiDyRS-X project, can film rocket motor tests that are difficult to record without drastically cutting down the exposure settings on the camera.

NASA’s new Mars Rover video game lets players drive the rover around a simulation of Mars, awarding points for navigating and balancing it on the rough terrain.

Popularly known as “Yutu,” the country’s lunar rover finally ended its mission on the moon with a post on Weibo — “Hi! This could be the last greetings from me!”

Moon Express is the first private company in history to receive U.S. government approval to travel beyond Earth's orbit.

Government auditors say NASA's Journey to Mars initiative is not feasible. Find out why.

Richard Branson's Virgin Galactic has been granted an operating license to fly its passenger rocketship with the world's first paying space tourists.

What NASA has learned about the health effects of long space flights — like the potential trip to Mars.

The solar-powered spacecraft is now falling back toward the gas giant, and will fly by Jupiter on Aug. 27 at a distance of just 2,600 miles above its cloud tops.