03 February 2012, 01:48 PM ET
NASA has a critical need for commercially built spacecraft to fill the gap in human spaceflight.
03 February 2012, 07:00 AM ET
Shannon Lucid is a veteran of five spaceflights, logging more than 223 days in space.
02 February 2012, 10:01 AM ET
Have a favorite spaceship? Cheer it on in SPACE.com's vote for the best human-carrying spacecraft.
01 February 2012, 10:25 AM ET
See photos of NASA's final shuttle mission to service the Hubble Space Telescope.
31 January 2012, 01:31 PM ET
The space shuttles are undergoing final preparation for public display at museums.
11 January 2012, 06:00 AM ET
Retired NASA spaceflyer Steven Hawley also discussed his own experiences.
29 December 2011, 11:47 AM ET
The old NASA space shuttle simulator has a new lease on life.
27 December 2011, 12:00 PM ET
The 50th anniversary of human spaceflight brought big changes.
21 December 2011, 05:24 PM ET
Flying in space is tough work, and these missions found out the hard way.
21 December 2011, 10:31 AM ET
A look at the most memorable events in spaceflight from 2011.
21 December 2011, 07:00 AM ET
A lot of spacecraft went up this year, and a few came crashing back down.
16 December 2011, 04:50 PM ET
NASA has powered down its oldest space shuttle for the last time.
12 December 2011, 05:14 PM ET
NASA's space shuttle prototype orbiter Enterprise is now an official New Yorker.
12 December 2011, 12:01 PM ET
The full-scale space shuttle replica Explorer moved to clear space for the real shuttle Atlantis.
05 December 2011, 05:55 PM ET
Astronaut Chris Ferguson is retiring for the private sector.
29 November 2011, 07:01 PM ET
Studying how roundworms tolerate microgravity and space radiation may teach us a thing or two.
29 November 2011, 03:27 PM ET
An up-close look at the space agency's new $500 million, 355-foot-high mobile launcher.
15 November 2011, 01:23 PM ET
The congresswoman said she wants to get better first.
08 November 2011, 06:02 PM ET
See photos of NASA's first and last shuttle astronauts together: the crews of STS-1 and STS-135.
08 November 2011, 05:59 PM ET
The current and former astronauts posed for a historic set of photographs.
31 October 2011, 10:00 AM ET
Boeing is leasing an old shuttle processing hangar at NASA's Kennedy Space Center.
31 October 2011, 09:32 AM ET
Every Halloween, I carve one or two pumpkins with the mission emblem of either an upcoming mission or one that is currently in orbit.
28 October 2011, 12:10 PM ET
SpaceX's Dragon capsule has notched another milestone.
24 October 2011, 04:00 PM ET
NASA's is opening its Vehicle Assembly Building for public tours at the Kennedy Space Center.
18 October 2011, 10:55 AM ET
Boeing is putting its CST-100 spaceship through its paces.
14 October 2011, 12:40 PM ET
Endeavour is gearing up for its final voyage, a trip to its retirement home at the California Science Center.
14 October 2011, 07:00 AM ET
The deal could be worth up to $4.5 million.
13 October 2011, 12:57 PM ET
It's time to accept the fact that the shuttles won't fly again, experts say.
11 October 2011, 02:59 PM ET
The California Science Center in Los Angeles is the future home of Endeavour.
04 October 2011, 12:07 PM ET
Houston and New York City are among those with tweaked plans to display NASA space shuttles.
28 September 2011, 09:31 AM ET
After 5 month aboard the International Space Station, the NASA astronaut returned to Earth aboard a Soyuz TMA-21 on September 16. SPACE.com's Clara Moskowitz caches up with him in this exclusive interview.
22 September 2011, 03:17 PM ET
Captain Eugene Cernan, commander of Apollo 17, upset with the United States' current inability to ferry astronauts to Low Earth Orbit, wants the STS program to be reinstated until a suitable replacement is put in place.
17 September 2011, 08:00 AM ET
The prototype shuttle Enterprise was revealed to the public on Sept. 17, 1976.
12 September 2011, 02:39 PM ET
A look at some of the top milestones from the first 50 years of human spaceflight, from Gagarin's historic flight to the birth of space tourism.
07 September 2011, 12:59 PM ET
NASA had 150 astronauts in 1999. Now it has 61.
01 September 2011, 12:34 PM ET
NASA's 30-year shuttle program is over.