23 October 2014, 04:30 PM ET
Apollo 11 moonwalker Buzz Aldrin wants to send people on a trip to Mars, and he doesn't want them to come home — at least not at first.
22 October 2014, 04:40 PM ET
Company executives and government officials at a commercial space conference expressed a mixture of optimism and impatience.
22 October 2014, 03:31 PM ET
Cosmonauts Max Suraev and Alexander Samokutyaev went outside the International Space Station today. They completed what was supposed to be a six-hour spacewalk in just three hours and 38 minutes.
22 October 2014, 03:20 PM ET
Expedition 41 Commander Max Suraev and Flight Engineer Alexander Samokutyaev of the Russian Federal Space Agency worked outside in the International Space Station on Oct. 22, 2014.
22 October 2014, 02:46 PM ET
From spy satellites and missile defense to robot space planes and orbital platforms, get the latest news and views on military space technology.
22 October 2014, 09:18 AM ET
Russian cosmonauts from International Space Station's Expedition 41 crew will complete a six-hour spacewalk on Wednesday (Oct. 22).
21 October 2014, 04:12 PM ET
There's a certain irony to the observation that Tom Hanks today may be better known for flying to the moon than Alan Bean, who actually went there. The actor and director celebrates Bean and laments his anonymity in the pages of "The New Yorker."
17 October 2014, 04:27 PM ET
The private spaceflight company Virgin Galactic will soon begin a new round of rocket-powered test flights of the commercial spaceliner SpaceShipTwo to prepare for eventual passenger flights to space.
17 October 2014, 07:30 AM ET
Forty-six years ago this week, NASA's first Apollo astronauts to launch into space were circling the Earth, just as the crew's mission patch depicted. The official insignia though, was not what the crew initially envisioned as representing their flight.
16 October 2014, 03:45 PM ET
Sierra Nevada Corp. filed suit in federal court Oct. 15, seeking to overturn a NASA decision to lift a stop-work order on contracts it awarded to Boeing and SpaceX.
16 October 2014, 09:52 AM ET
Space travelers from around the globe recently got a firsthand sense of China's blossoming plans to explore Earth orbit and beyond.
16 October 2014, 07:00 AM ET
A new analysis has pinpointed a few purported problems with the blueprint laid out by the Netherlands-based nonprofit Mars One, which aims to land four people on the Red Planet in 2025 as the vanguard of a permanent settlement.
16 October 2014, 07:00 AM ET
Orbital Sciences' Cygnus spacecraft was scheduled to launch on a cargo run to the station on Oct. 24. But that liftoff has been delayed until at least Oct. 27, because Hurricane Gonzalo could affect a tracking station for Cygnus' Antares rocket.
15 October 2014, 03:30 PM ET
Two NASA astronauts working outside the International Space Station raced against the clock during a spacewalk today (Oct. 15).
15 October 2014, 02:43 PM ET
Hubble has spotted three objects that the New Horizons probe could potentially visit after completing its Pluto flyby in July 2015. One of these newly identified bodies is definitely reachable, while the other two require further study.
15 October 2014, 02:09 PM ET
See photos of NASA astronauts Reid Wiseman and Barry "Butch" Wilmore taking a spacewalk outside the International Space Station on Oct. 15, 2014.
15 October 2014, 06:41 AM ET
Two NASA astronauts will venture into the vacuum of space for a spacewalk on the outside of the International Space Station today (Oct. 15), and anyone with an Internet connection can watch it live online.
14 October 2014, 03:28 PM ET
Canadian astronaut Chris Hadfield shares his favorite images of Earth from space in a new book, "You Are Here: Around the World in 92 Minutes."
13 October 2014, 05:46 PM ET
The first meeting of 'The Astronaut Wives Club' — the made-for-TV-version, that is — has convened in New Orleans. Filming has begun on the 10-episode ABC series, which tells the real story of the women who stood beside the United States' first spacemen.
13 October 2014, 02:04 PM ET
NASA needs your help to name a new robot, and you could win some money doing it.
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
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, 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.
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.
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, 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.