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, 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, 10:03 AM ET
Astronaut Edwin E. Aldrin, Jr. stands next to a solar wind experiment during the Apollo 11 EVA.
11 December 2013, 06:26 AM ET
SPACE.com invites experts in space exploration, science & technology to provide insightful commentary and informed perspective on news, current events, innovations, big ideas and ongoing research. Expert Voices includes Op-Ed analysis and opinion as well
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, 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, 10:00 AM ET
The private Mars One colony project
09 December 2013, 03:17 PM ET
The next U.S. commercial spacecraft to fly to the International Space Station has been named for Gordon Fullerton, the late NASA astronaut who helped to deploy air-launched rockets built by the same company behind the space freighter.
09 December 2013, 12:01 PM ET
A mission consisting of a 180-day cruise to Mars, a 500-day stay on the Red Planet and a 180-day return flight to Earth would expose astronauts to a cumulative radiation dose of about 1.01 sieverts, Curiosity's measurements suggest.
09 December 2013, 10:46 AM ET
Astronaut John Swigert holds the rigged arrangement used to purge carbon dioxide from the Lunar Module during the Apollo 13 mission.
08 December 2013, 02:38 PM ET
What was your favorite space news story of the last week?
08 December 2013, 01:06 PM ET
From an amazing video of the mysterious six-sided vortex spinning around Saturn's north pole to some stunning photos of Comet Lovejoy C/2013 R1, don't miss these amazing space images of the week for Dec. 8, 2013.
08 December 2013, 08:40 AM ET
'Get ready for the Gs!' Those are the last words I heard from my pilot before four times the force of gravity pinned my arms, legs and the rest of my body to my seat in the Marchetti SF 260 I flew on Friday (Dec. 6) here at Air Combat USA
08 December 2013, 08:00 AM ET
Twenty-three people are now the proud recipients of free trips to space and back again thanks to the Axe Apollo Space Academy, Space Expedition Corporation and XCOR Aerospace.
06 December 2013, 05:56 PM ET
Find out what happened aboard the International Space Station during the week ending December 6th, 2013. NASA's Josh Byerly gives you the run down.
06 December 2013, 05:50 PM ET
Japanese Astronaut Koichi Wakata managed to see Comet ISON's tail from the International Space Station before it disintegrated on its pass around the sun.
05 December 2013, 03:00 PM ET
As if the International Space Station couldn’t get any cooler, the Japanese segment of the orbiting outpost has launched a barrage of small satellites — known as "cubesats" — from their very own Cubesat Cannon!
05 December 2013, 01:11 PM ET
Things are about to get extreme. I flew down here to Florida Wednesday (Dec. 4) to cover the AXE Apollo Space Academy, a space camp designed to give away 23 tickets to space.
04 December 2013, 06:14 PM ET
Soon, we'll know who among the applicants on a one-way trip to Mars makes it into the second round. It's a one-way ticket, but not to worry: you’ll live there longer than back home on Earth. After all, on Mars you can’t get hit by a car. One thing is cert
04 December 2013, 03:00 PM ET
For decades, the space race was seen as being mostly about national pride. Getting there first mattered most, whereas pushing the frontiers of science and technology took a close second.
03 December 2013, 04:01 PM ET
The secretive private spaceflight company Blue Origin has successfully test-fired a new engine for its rockets that could one day lift cargo and astronauts into orbit, NASA announced.
03 December 2013, 03:56 PM ET
Mustaches were everywhere. On the balloons, face-painted on children and of course, on the face of celebrity astronaut Chris Hadfield himself when he showed up at the book signing.
03 December 2013, 03:23 PM ET
A group of would-be astronauts are heading down to Florida this week to compete for the opportunity of a lifetime: a free trip to the edge of space and back again.
03 December 2013, 03:00 PM ET
Canadian astronaut Chris Hadfield visited his hometown Nov. 23, 2013 for a book signing event that attracted an estimated 1,000 people in Sarnia, Ont. – population 72,000.
03 December 2013, 02:59 PM ET
In one of the few behind-the-scenes looks at the private space company's assets, the hydrogen/oxygen fueled BE-3 rocket engine is test fired. Its being tested for use on the company's orbital launch vehicle.
03 December 2013, 02:50 PM ET
See tantalizing spaceship photos from the secretive commercial space company Blue Origins.
03 December 2013, 12:18 PM ET
When it comes to space and energy, we need to think big. That's what one Japanese company is doing — and they're reaching for the moon, literally.
02 December 2013, 01:40 PM ET
NASA is vacuum testing the carbon fiber barrier between the Orion capsule and the propellent stage. Its main purpose is to keep dangerous gasses away from the spacecraft.
02 December 2013, 01:17 PM ET
It does not seem out of place today, but the sight 30 years ago of a pressurized module mounted in the space shuttle's payload bay was described in 1983 as an 'odd-appearing assemblage.' That sight was Spacelab, a $1 billion space laboratory.
02 December 2013, 08:00 AM ET
How does a country preserve its mark on the moon for decades to come? It may not seem like the moon is a busy space-traffic hub these days, but in the not-too-distant future, that could change.
01 December 2013, 02:26 PM ET
What was your favorite space news story of the last week?
01 December 2013, 12:44 PM ET
From a stunning image of the Dragon's Head Nebula to a photo of Comet ISON as seen by a NASA Mercury Probe, don't miss these amazing space photos of the week for Dec. 1, 2013.
01 December 2013, 12:00 AM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in October 2013.