07 March 2014, 09:05 PM ET
NASA astronaut Scott Kelly will spend a year aboard ISS, giving researchers a better understanding of how spaceflight effects in the human body. Scott's identical twin Mark (fmr. Space Shuttle cmdr.) provides a unique Earth-based comparison.
07 March 2014, 05:32 PM ET
One of four business jets converted to train NASA astronauts to land the space shuttle is on final approach to the Alabama home of Space Camp, pending the result of the U.S. Space & Rocket Center's first crowd-funding campaign.
07 March 2014, 04:02 PM ET
Scott and Mark Kelly, the only set of astronaut twins, are set to become test subjects in an unprecedented NASA investigation into how weightlessness impacts the human body.
07 March 2014, 03:40 PM ET
A new study indicates that the entry, descent and landing of SpaceX's unmanned Dragon capsule at Mars is viable. Moreover, the capsule's descent technique would help set the stage for future human missions to the Red Planet.
07 March 2014, 02:34 PM ET
A look at the "Red Dragon" mission concept, which would use SpaceX's Dragon capsule and Falcon Heavy rocket to bring Red Planet samples — perhaps gathered by NASA's 2020 Mars rover — to Earth.
07 March 2014, 10:45 AM ET
In case of an off-course Soyuz landing (and the rescue teams inability to reach the crew in a reasonable time period), astronauts are trained in outdoor winter survival. ESA astronaut Andreas Mogensen looks back at his training.
07 March 2014, 10:29 AM ET
NASA's historic jumbo jet that ferried retired space shuttles piggyback to their museums is being prepared for its own lift to where it'll be put on public display. The Shuttle Carrier Aircraft is being readied for its final move.
07 March 2014, 09:45 AM ET
Two astronauts await recovery after completing the Gemini VIII mission.
07 March 2014, 06:30 AM ET
A record release of 33 CubeSats from the International Space Station ended Friday after a methodical series of deployments of miniature Earth imaging satellites for San Francisco-based Planet Labs Inc.
07 March 2014, 06:27 AM ET
San Francisco-based startup Planet Labs released the first images of Earth taken by its Dove 1 and 2 satellites in April and May 2013.
06 March 2014, 02:46 PM ET
The Winklevoss twins launched into the headlines Wednesday (March 5) by announcing their plan to ride a Virgin Galactic space plane (and paying with Bitcoins, no less), but they aren't the first set of identical twins to fly in space.
06 March 2014, 12:27 PM ET
The research center (formerly Dryden F.R.C.) is testing next generation airplanes with plans to increase their efficiency and design. The flight center was renamed after Neil Armstrong, the first moonwalker.
06 March 2014, 11:21 AM ET
The new TV show "Cosmos" isn't just for science nerds and space geeks. The producers of the show want to reach everyone with their broad, visually stunning approach to science.
06 March 2014, 10:43 AM ET
A tiny model (2 percent actual size) of the proposed Space Launch Systems was tested fired by Marshall Flight Center engineers to provide data on convective heating environments during ascent of the actual rocket.
06 March 2014, 10:18 AM ET
Photos of the NASA-funded sounding rocket mission including some stunning shots of the launch—straight into an aurora over Venetie, Alaska.
06 March 2014, 08:35 AM ET
Do you remember the first time you saw 'Cosmos'? Or the first time you heard Carl Sagan's voice tell you that you, too, were made of star stuff? How did Carl Sagan inspire you?
06 March 2014, 07:00 AM ET
The private spaceflight company will be ready to compete for Air Force contracts using its new Falcon rocket soon, Elon Musk, the billionaire founder of SpaceX said today (March 5) during a U.S. Senate Appropriations Subcommittee on Defense hearing.
06 March 2014, 07:00 AM ET
Internet entrepreneurs and Olympic athletes Cameron and Tyler Winklevoss, whose dispute with Facebook founder Mark Zuckerberg was chronicled in film "The Social Network," have bought seats aboard Virgin Galactic's suborbital SpaceShipTwo.
05 March 2014, 03:30 PM ET
Rocky Russian relations could leave U.S. astronauts without rides to the International Space Station. For now, the U.S.-Russian space partnership is insulated from the political whirlwind generated by Russia's decision to move troops into Crimea.
05 March 2014, 11:41 AM ET
William 'Bill' Pogue, a USAF Thunderbirds pilot and NASA astronaut who served on the nation's first space station, died on March 3. Selected by NASA in 1966, Pogue made his first and only spaceflight with the final crew to man the Skylab orbital workshop.
05 March 2014, 11:00 AM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions. See Space.com complete coverage of NASA's 2015 budget request here:
05 March 2014, 09:28 AM ET
An astronaut takes a hot bath on the Skylab space station.
05 March 2014, 01:00 AM ET
The White House's 2015 federal budget request, which was released Tuesday, allocates $15 million to help develop a mission to Europa, which harbors a potentially life-supporting ocean of liquid water beneath its icy shell.
04 March 2014, 06:07 PM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions, while supporting ambitious new science missions. See reactions to the new NASA budget.
04 March 2014, 04:50 PM ET
Tensions between the United States and Russia are heightened as three International Space Station crewmembers (one American astronaut, and two cosmonauts) plan to fly back to Earth on a Russian Soyuz spacecraft Monday (March 10).
04 March 2014, 04:26 PM ET
LiftPort Group of Seattle seems to think so. This private company proposes launching rockets from Earth to a 'Lagrange Point PicoGravity Lab' where cargo can be transferred to and from the lunar surface.
04 March 2014, 03:05 PM ET
NASA unveiled its 2015 budget request today (March 4), a request that seeks $17.5 billion for the agency. See NASA chief Charles Bolden's view of the agency's 2015 budget plan.
04 March 2014, 01:12 PM ET
The NASA Administrator, former Shuttle Cdr. Charles F. Bolden, briefs taxpayers on NASA's goals including commercial partnerships, the Orion crew capsule and a possible heavy lift launcher.
04 March 2014, 01:08 PM ET
NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled today (March 4). It maintains the agency's biggest space programs, lays groundwork for major new astrophysics and planetary science.
04 March 2014, 12:50 PM ET
See images of NASA’s space exploration goals for 2015.
04 March 2014, 12:46 PM ET
The proposed 2015 federal budget released by the White House today (March 4) allocates $17.5 billion to NASA, a $200 million drop from the space agency's 2014 budget request.
04 March 2014, 11:46 AM ET
Two astronauts repair the Solar Maximum Mission Satellite during an EVA on STS-41C.
04 March 2014, 11:04 AM ET
The late astronomer Carl Sagan has inspired scientists, astronauts and the world with his work popularizing science and astronomy. See the long-lasting legacy of Sagan, an astronomy educator for the ages, in this Space.com gallery.
04 March 2014, 10:00 AM ET
Europe’s biggest aerospace manufacturer, Airbus Group, will drop its scale-model Spaceplane from an altitude of 10,000 feet over Singapore in May. If that trial goes well, another unpowered drop from 100,000 feet could follow next year.
04 March 2014, 09:28 AM ET
NASA chief Charlie Bolden and NASA's chief financial officer Elizabeth Robinson will discuss the space agency's newest budget proposal during a news conference at 2 p.m. ET (1900 GMT).
04 March 2014, 07:04 AM ET
The European company EADS/Airbus is developing a commercial space plane for passenger flights. See images of the EADS space plane concept here.