13 December 2013, 05:43 PM ET
NASA selected SpaceX (Space Exploration Technologies) to lease a historic launch pad to support the private spaceflight company's rockets.
13 December 2013, 02:03 PM ET
The U.S. Air Force's unmanned X-37B space planes can stay in orbit for months doing who knows what. They have payload bays, solar arrays and are reusable. What do YOU think the military is using them for?
13 December 2013, 01:05 PM ET
The U.S. Air Force's secretive X-37B space plane program has passed another milestone: Its latest mission marked one year in orbit this week.
13 December 2013, 12:00 PM ET
China's first moon rover mission is poised for weekend landing on the lunar surface, an event that — successful — will mark the country's first robotic landing on another celestial body. Here's what Chang'e 3 and the Yutu rover could do.
13 December 2013, 11:20 AM ET
Astronauts have beamed down their views of the Earth from the International Space Station for years, but a new video shows their unique sights in a new light.
13 December 2013, 11:07 AM ET
In the latest episode of NASA's 'Space To Ground', host Josh Byerly talks about the cooling system failure and the orbital sciences' cargo delivery. Also, in station science: circadian rhythms, and the impact on human eyes while living in space.
13 December 2013, 10:15 AM ET
ISS crew member Rick Mastracchio gives an update on the cooling system failure that occurred on Dec. 12, 2013 and the possible spacewalk to repair. Also, he answers SPACE.com reader questions and talks Christmas.
13 December 2013, 09:19 AM ET
A NASA engineer measures velocity and gradient distortion with lasers during a cold-flow propulsion research test.
12 December 2013, 02:10 PM ET
Veteran NASA astronaut Rick Mastracchio is hard at work on the International Space Station, but on Friday (Dec. 13), he will speak with SPACE.com about life in orbit and we want to hear your questions.
12 December 2013, 01:58 PM ET
A modified version of the orange Advanced Crew Escape System (ACES) suits worn during launch and re-entry of Space Shuttle flights was tested at the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center in Houston.
12 December 2013, 01:14 PM ET
The malfunction of a vital cooling system on the International Space Station could delay plans to launch a privately built cargo ship on its first official delivery mission to the orbiting lab next week, NASA officials said today (Dec. 12).
12 December 2013, 01:14 PM ET
ISS Mission Operations Integration Manager Kenny Todd explains what happened with the station's cooling loop on Dec 12, 2013 and the efforts to fix the problem. The ISS crew is not in danger but an Orbital Science's cargo delivery may be delayed.
12 December 2013, 12:45 PM ET
Astronaut Edward White II floats in the zero gravity of space.
12 December 2013, 11:30 AM ET
Commercial U.S. space company Orbital Sciences Corp. is set to send its second unmanned freighter the International Space Station next week. Weather permitting, the rocket launch should be visible for many skywatchers along the East Coast.
11 December 2013, 09:23 PM ET
The International Space Station suffered a problem with half of its vital cooling system Wednesday (Dec. 11), resulting in a partial power down of some non-critical systems, NASA officials say.
11 December 2013, 06:08 PM ET
This computer animation shows how the European Space Agency’s Rosetta spacecraft wakes up from deep space hibernation on 20 January 2014. The spacecraft is headed for a 2014 rendezvous with the Comet 67P/Churyumov–Gerasimenko.
11 December 2013, 05:51 PM ET
Virgin Galactic's private SpaceShipTwo space plane built to fly space tourists on suborbital thrill rides successfully flew its latest glide test over the California desert today (Dec. 11). The flight tested a new coating to the spacecraft's twin tail boo
11 December 2013, 04:07 PM ET
Come along for the ride as SPACE.com's @MiriKramer flies with fmr. Air Force pilot Russell Campell aboard a Marchetti SF260. 10 seconds of weightlessness into a 4G turn, Cuban 8 maneuver and more..she even gets to fly the plane!
11 December 2013, 10:12 AM ET
On 10 December 2013, a lander that uses NASA automated landing tech, conducted a free-flight in which it flew forward and landed 23 feet from its launch point. It could be used deliver cargo to asteroid and other planetary surfaces.
11 December 2013, 10:03 AM ET
Astronaut Edwin E. Aldrin, Jr. stands next to a solar wind experiment during the Apollo 11 EVA.
10 December 2013, 06:01 PM ET
Ed Stone, Project Scientist for NASA's Voyager mission, received NASA's highest honor for a non-government individual on the Colbert Show December 3rd.
10 December 2013, 05:23 PM ET
Mars One, the nonprofit foundation that plans to send astronauts on a one-way trip to Mars, has secured suppliers for its first mission to the Red Planet. The foundation has picked Lockheed Martin to design its unmanned vehicles.
10 December 2013, 05:00 PM ET
As a Canadian, I'm supposed to be used to extremes. I've commuted across the city many times in snowstorms, skated on an outdoor canal in blistering cold and played soccer in the humid soup of 104 degrees Fahrenheit (40 degrees Celsius).
10 December 2013, 04:37 PM ET
Amateur radio operates beamed up 'Hi' in morse code on Oct. 9th, 2013 to NASA's Juno spacecraft. It was received by the probe and the audio from the event was sent back to Earth.
10 December 2013, 02:46 PM ET
See how amateur ham radio operators beamed messages to NASA’s Jupiter-bound Juno spacecraft during its Earth flyby of Oct. 9, 2013. Did their morse code messages of hello reach Juno?
10 December 2013, 02:40 PM ET
This cosmic pirouette of Earth and our moon was captured by the Juno spacecraft as it flew by Earth on Oct. 9, 2013. Set be inserted into Jupiter orbit in August 2016.
10 December 2013, 01:58 PM ET
NASA's robotic astronaut helper is getting its space legs. The space agency is developing two lower limbs for Robonaut 2, a robot designed to eventually help astronauts with tasks on the International Space Station.
10 December 2013, 01:14 PM ET
Meet Robonaut 2, NASA's robot helper for space station astronauts.
10 December 2013, 10:03 AM ET
This experiment is designed to develop and demonstrate the technology required to use the Sun's energy for inexpensive space propulsion research.
10 December 2013, 10:00 AM ET
The private Mars One colony project
09 December 2013, 10:45 PM ET
If NASA were able to leave the rocket booster business, it could go back to true innovation.
09 December 2013, 05:27 PM ET
A $250 million Earth-observation satellite developed by China and Brazil was lost in launch mishap on a Long March 4B rocket early Monday (Dec. 9), officials said. The CBERS 3 satellite launched at 0326 GMT Monday (9:26 p.m. EST Sunday) on a Chinese Long