28 February 2011, 06:15 PM ET
Shuttle astronauts completed the first spacewalk of Discovery's STS-133 mission.
28 February 2011, 06:04 PM ET
Two astronauts working outside the International Space Station today collected an unusual souvenir of their spacewalk: a bottle full of space.
28 February 2011, 11:00 AM ET
Two astronauts are tackling a spacewalk outside of the International Space Station today.
27 February 2011, 05:53 PM ET
The astronauts reflect on the significance of Discovery's historic last mission.
27 February 2011, 09:01 AM ET
Discovery's six astronauts are gearing up for a busy day of unpacking.
26 February 2011, 06:32 PM ET
For the first time ever, spaceships from four different space agencies are linked in orbit at the same time.
26 February 2011, 02:23 PM ET
Discovery will stay docked to the orbiting lab for seven days.
26 February 2011, 06:41 AM ET
Shuttle Discovery will make its final arrival at the International Space Station today.
25 February 2011, 08:49 PM ET
A student balloon took dramatic photos of shuttle Discovery launching on its final flight Feb. 24. The balloon captured the photos from the edge of space.
25 February 2011, 08:10 PM ET
A debris strike on the space shuttle Discovery during its Thursday launch poses no threat to the spacecraft or its astronaut crew, NASA officials say.
25 February 2011, 03:00 PM ET
A bicycle crash may have kept astronaut Tim Kopra stuck on Earth, but he's with shuttle Discovery's crew in spirit.
25 February 2011, 10:41 AM ET
What will happen to space shuttle Discovery's flight if there is a partial government shutdown?
25 February 2011, 09:00 AM ET
Reminiscing with a former astronaut from the space shuttle Discovery's maiden voyage.
25 February 2011, 09:00 AM ET
Engineers who helped build the space shuttle Discovery now say goodbye to the space workhorse.
24 February 2011, 06:12 PM ET
The Space Shuttle Discovery and its STS-133 crew blast off from Kennedy Space Center at 4:50pm EST, February 24, 2011, for the shuttle's final mission to the ISS before retirement.
24 February 2011, 05:52 PM ET
See photos from Space shuttle Discovery's final launch into space on Feb. 24, 2011.
24 February 2011, 04:57 PM ET
Engineers are trying to fix a damaged space shuttle heat shield tile in time for today's launch
24 February 2011, 04:53 PM ET
NASA's space shuttle Discovery launched on one final mission Feb. 24.
24 February 2011, 06:33 AM ET
The space shuttle Discovery is set to launch on its final flight today.
23 February 2011, 06:57 PM ET
High-schoolers have helped build a balloon camera to photograph space shuttle Discovery's launch.
23 February 2011, 06:26 PM ET
NASA's space shuttles aren't the gleaming spaceships you might think.
23 February 2011, 05:04 PM ET
Life on the International Space Station may get cushier when a robot butler called Robonaut 2 arrives. NASA's space shuttle Discovery will deliver Robonaut 2 to the station this week.
23 February 2011, 01:18 PM ET
NASA says the space shuttle Discovery is "ready to fly" its final mission.
23 February 2011, 07:30 AM ET
The last astronaut crew of space shuttle Discovery are all veteran spaceflyers.
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.