13 October 2014, 05:20 PM ET
Rosetta team members have named the 82-foot-tall boulder on Comet 67P/Churyumov-Gerasimenko "Cheops," after the largest pyramid in Egypt's famous Giza complex.
13 October 2014, 02:04 PM ET
NASA needs your help to name a new robot, and you could win some money doing it.
13 October 2014, 07:00 AM ET
Comet Siding Spring, also known as C/2013 A1, will miss the Red Planet by just 87,000 miles (140,000 kilometers) at 2:27 p.m. EDT (1827 GMT) Sunday. For comparison, the moon orbits Earth at an average distance of 239,000 miles (384,600 km).
13 October 2014, 12:38 AM ET
NASA's Hubble Space Telescope has spotted a few objects that the New Horizons probe might be able to explore after it zooms past the Pluto system during a highly anticipated flyby on July 14, 2015.
12 October 2014, 11:03 AM ET
From spacewalks and sun tentacles to a wild total lunar eclipse, it's been an amazing week for space photography. Check out our favorite space images
12 October 2014, 08:44 AM ET
The U.S. Air Force's mysterious X-37B space plane will return to Earth this week, possibly Tuesday (Oct. 14), after 22 months in orbit on a secret mission.
10 October 2014, 05:56 PM ET
A NASA astronaut living and working on the International Space Station captured an incredible image of Typhoon Vongfong brewing in the Western Pacific.
10 October 2014, 04:43 PM ET
Nichelle Nichols promotes the next-generation NASA capsule and its possible missions.
10 October 2014, 01:03 PM ET
NASA announced Oct. 9 that it has lifted an order that halted work on commercial crew contracts awarded last month to Boeing and SpaceX, saying that delaying work during an ongoing contract protest could jeopardize the operation of the ISS.
10 October 2014, 12:07 PM ET
In an event titled “Go for Payload,” the California Science Center added a Spacehab module to the open hold of the retired space shuttle Endeavour.
10 October 2014, 12:03 PM ET
Retired space shuttle Endeavour continues to draw crowds at the California Science Center in Los Angeles.
10 October 2014, 11:45 AM ET
An excerpt from Marc Kaufman's 'Mars Up Close: Inside the Curiosity Mission,' which was published in August 2014 by National Geographic.
10 October 2014, 10:30 AM ET
NASA's fleet of Red Planet orbiters will be hiding behind the planet when the debris from Comet Siding Spring comes swarming in. The comet will fly within 87,000 miles of the planets surface on October 19th, 2014.
10 October 2014, 08:00 AM ET
Researchers are developing new types of robotic systems inspired by elephant trunks, octopus arms and giraffe tongues. These flexible, maneuverable "tentacle robots" could have a variety of space applications, scientists say.
09 October 2014, 05:06 PM ET
NASA's fleet of Red Planet orbiters and rovers will be watching on Oct. 19, when Comet Siding Spring zooms within 87,000 miles of Mars.
09 October 2014, 07:00 AM ET
Space agency scientists are developing two separate mission concepts, called Lunar Flashlight and the Resource Prospector Mission, to assess, and learn how to exploit, stores of water ice and other lunar resources. Both would launch by 2018.
08 October 2014, 02:38 PM ET
The test flight, scheduled for December 2014, will examine NASA's new spacecraft by flying it farther than any humans have been since the Apollo missions. NASA engineer Kelly Smith takes explains the flight, step by step.
08 October 2014, 12:00 PM ET
SpaceShipTwo completed an unpowered "glide flight" from California's Mojave Air and Spaceport Tuesday. The vehicle rotated its tail and wings upward during the test, "feathering" them as it would to during the descent phase of a suborbital spaceflight.
08 October 2014, 11:23 AM ET
Space Center Houston is now a member of the Smithsonian's crew. Space Center Houston, which serves as the official visitor center for NASA's Johnson Space Center in Texas, is officially the first museum in Houston to be named a Smithsonian Affiliate.
07 October 2014, 04:32 PM ET
An architect with an interest in spaceflight has drafted a design to relaunch the display of a Saturn V moon rocket in Houston. Brantley Hightower's idea for a glass-fronted building came after he visited the booster at NASA's Johnson Space Center.
07 October 2014, 02:49 PM ET
Two astronauts ventured outside the International Space Station to do some maintenance and repair work during a more than six-hour spacewalk today (Oct. 7).
07 October 2014, 11:42 AM ET
ISS crew members Reid Wiseman and Alexander Gerst's spacewalk consists of moving a failed cooling pump, installing a relay system and replacing electronics on October 7th, 2014.
07 October 2014, 10:20 AM ET
See photos of NASA's Reid Wiseman and European Space Agency astronaut Alexander Gerst taking their first spacewalk outside the International Space Station.
07 October 2014, 07:01 AM ET
Two astronauts will venture outside the confines of the International Space Station for a spacewalk today (Oct. 7).
06 October 2014, 03:07 PM ET
The Bigelow Expandable Activity Module (BEAM) is expected to head to the orbiting lab inside SpaceX's Dragon cargo spacecraft in 2015. The BEAM mission will test out expandable-habitat technology, NASA officials have said.
06 October 2014, 07:01 AM ET
Stratolaunch's huge rocket-launching plane could be launching Sierra Nevada Corporation's Dream Chaser space plane into orbit a few years from now.
05 October 2014, 12:26 PM ET
What was your favorite space news story of the last week?
05 October 2014, 08:53 AM ET
One decade after a huge milestone in commercial spaceflight, Sir Richard Branson thinks his spaceflight company Virgin Galactic's spaceship, is "on the verge" of another breakthrough in the industry.
04 October 2014, 11:01 AM ET
From a stunning image of the Red Planet from India's first spacecraft to a spectacular new photo showing a cluster of stars, don't miss these amazing space images of the week for Oct. 4, 2014.
04 October 2014, 08:30 AM ET
A NASA-backed study explores an innovative way to dramatically cut the cost of a human expedition to Mars -- put the crew in stasis.
03 October 2014, 06:00 PM ET
On Oct. 4, 2004, the privately funded SpaceShipOne reached outer space for the second time in less than a week, winning the $10 million Ansari X Prize for the team that built the craft and giving a nascent industry a huge shot in the arm.
03 October 2014, 12:25 PM ET
Lynn Sherr — the author of the recently-released book, "Sally Ride: America's First Woman in Space" — paid tribute to the late astronaut Thursday (Oct. 2) on the satirical news program "The Colbert Report."