22 February 2011, 01:54 PM ET
The shuttle stands ready for its planned liftoff in two days from NASA's Kennedy Space Center.
22 February 2011, 12:36 PM ET
Vote for your favorite innovators of the new digital space age.
22 February 2011, 08:32 AM ET
Learn more about space shuttle Discovery's final cargo: a closet for the International Space Station.
22 February 2011, 08:00 AM ET
NASA's space shuttle Discovery has one last delivery to make before retiring.
22 February 2011, 07:19 AM ET
The space shuttle Discovery's name has long ties with exploration.
21 February 2011, 01:20 PM ET
Space shuttle Discovery has an 80 percent chance of good weather for its final launch.
20 February 2011, 12:00 PM ET
The six astronauts who will fly the space shuttle Discovery on its final mission to the International Space Station arrived at NASA's Florida spaceport today, four days ahead of their Feb. 24 launch. The crew expressed confidence that all will go well wit
18 February 2011, 07:00 PM ET
Top NASA officials decided to proceed with the planned launch of the space shuttle Discovery next week on Thursday, Feb. 24.
18 February 2011, 09:39 AM ET
NASA's top managers will meet today (Feb. 18) to set an official launch date for the space shuttle Discovery's upcoming flight to the International Space Station.
14 February 2011, 06:06 PM ET
If NASA continues operating at 2010 funding levels, the agency will have enough money to fly its third and final space shuttle mission this year.
14 February 2011, 03:38 PM ET
Wounded congresswoman Gabrielle Giffords is relearning how to speak after sustaining a traumatic brain injury from a bullet wound to the head in early January.
11 February 2011, 01:53 PM ET
Astronaut Mike Massimino (First Tweeter from Space) jokes around with the crew of the STS-133 mission about the delay in the flight and the last minute addition of Steve Bowen, who replaces injured Tim Kopra.
11 February 2011, 11:46 AM ET
Recent events have cast an unprecedented public glimpse into the relationship of a spaceman and politician.
10 February 2011, 12:10 PM ET
NASA's first prototype of its new manned Orion space capsule has shipped out for rigorous ground tests.
09 February 2011, 05:54 PM ET
Wounded Congresswoman Gabrielle Giffords is making amazing progress recovering from a bullet wound to the head, her husband says.
08 February 2011, 05:06 PM ET
A NASA contractor has submitted a 'long shot' bid to fly the shuttle as a commercial service after NASA retires its fleet.
07 February 2011, 05:07 PM ET
Rising stars in the private spaceflight realm are drawing NASA's eye for future partners.
07 February 2011, 12:15 PM ET
Astronaut Mark Kelly is back to work preparing to launch on space shuttle Endeavour in April.
04 February 2011, 06:58 PM ET
Kelly will rely on his experience compartmentalizing his feelings to focus on his upcoming space mission.
04 February 2011, 05:51 PM ET
The space shuttle Endeavour's final flight is scheduled to launch on April 19. Here's a look at the details of the upcoming STS-134 mission to the International Space Station.
04 February 2011, 04:53 PM ET
Mark Kelly has decided to go ahead with his planned April space shuttle flight.
04 February 2011, 09:31 AM ET
Mark Kelly, the astronaut husband of Congresswoman Gabrielle Giffords, is expected to announce his decision about whether he will remain in command of his upcoming space shuttle mission, or remain by his wife's side as she recovers from a gunshot wound.
03 February 2011, 06:17 PM ET
Mark Kelly must make a tough call about whether to fly on the space shuttle one more time.
03 February 2011, 06:10 PM ET
This year, NASA will launch its final Space Shuttle missions. The development of the Shuttle had sprung from the supersonic rocket planes of Chuck Yeager, and was an answer to the question: what is the best way to send man into space?
03 February 2011, 03:41 PM ET
The U.S. Air Force is preparing its second X-37B robot space plane for a secret spaceflight in March.
02 February 2011, 12:03 PM ET
The U.S. Air Force's jet and rocket planes were the precursors of NASA's space shuttle fleet.
01 February 2011, 11:50 AM ET
A new Texas museum opens today (Feb. 1) to honor the space shuttle Columbia and its seven-astronaut crew on the eighth anniversary of the fatal disaster that ended the orbiter's final mission.
01 February 2011, 08:00 AM ET
The National Air & Space Museum is considering a display of Challenger and Columbia shuttle debris.
31 January 2011, 09:22 PM ET
Space shuttle Discovery repeated history Monday night (Jan. 31), making its final trip to the launch pad.
31 January 2011, 08:34 AM ET
The shuttle Discovery is set to roll out to the launch pad Jan. 31 ahead of its final mission
28 January 2011, 03:44 PM ET
How the memory of the Challenger crew can lead toward a brighter future in space exploration.
28 January 2011, 02:12 PM ET
SPACE.com takes a look at NASA's Challenger shuttle disaster 25 years later.
27 January 2011, 09:15 AM ET
The dangers of human spaceflight takes center stage this week, but just how risky is flying in space?
26 January 2011, 01:49 PM ET
The loss of the shuttle Challenger was devastating for the whole world, especially for those students and teachers who felt a special connection to the mission through Christa McAuliffe.
26 January 2011, 12:24 PM ET
If you need a place to launch a rocket or put together a spaceship, you're in luck: NASA is looking to rent out many of the facilities at its Kennedy Space Center in Florida.
25 January 2011, 05:44 PM ET
Educator-astronaut Barbara Morgan looks back on the space shuttle Challenger crew and its legacy.