15 May 2011, 11:28 PM ET
NASA has begun fueling the shuttle Endeavour for its planned May 16 launch at 8:56 a.m. EDT (1256 GMT).
15 May 2011, 06:00 AM ET
NASA will try a second time to launch the shuttle Endeavour on Monday (May 16) at 8:56 a.m. EDT.
14 May 2011, 03:59 PM ET
NASA cleared the Endeavour orbiter for a planned Monday launch to begin the next-to-last space shuttle mission.
14 May 2011, 09:01 AM ET
The six veteran astronauts struck a pose to appear as if they were in J.J. Abrams' 2009 movie.
14 May 2011, 06:00 AM ET
Engineers who helped construct Endeavour reminisce about what it was like to be a part of the space shuttle program.
14 May 2011, 06:00 AM ET
SPACE.com takes a trip down memory lane with Daniel Brandenstein, shuttle Endeavour's first commander.
13 May 2011, 10:33 AM ET
NASA will launch the shuttle Endeavour on Monday at 8:56 a.m. EDT.
12 May 2011, 09:42 AM ET
The STS-134 crew arrived at Kennedy Space Center for Endeavour's last liftoff.
11 May 2011, 01:56 AM ET
See photos from the test launch of NASA's Ares 1 rocket for Orion spaceships.
10 May 2011, 04:23 PM ET
A record-holding spacewalker and veteran shuttle commander are the newest Hall of Fame astronauts.
10 May 2011, 12:57 PM ET
STS-134 is commanded by Mark Kelly. His command of the flight was thrown into question by the Tucson, AZ shooting which injured his wife, Representative Gabrielle Giffords.
06 May 2011, 01:57 PM ET
NASA is aiming to launch the space shuttle Endeavour on its final flight no earlier than May 16.
05 May 2011, 12:19 PM ET
NASA commemorated the launch and landing of the first American spaceflight to honor its 50th anniversary.
05 May 2011, 06:00 AM ET
On the anniversary of Alan Shepard's flight, America is at a turning point in space.
04 May 2011, 01:33 PM ET
Author Mary Roach talks about bathroom humor as a gateway to space science.
02 May 2011, 06:02 PM ET
The launch of NASA's space shuttle Endeavour will now occur no earlier than May 10.
02 May 2011, 05:19 PM ET
Endeavour's STS-134 astronauts will resume training this week at NASA's Johnson Space Center in Houston.
02 May 2011, 12:48 PM ET
See baby photos of space shuttle Endeavour during its construction.
01 May 2011, 07:35 PM ET
On April 12, 2011, NASA will celebrate the 30th anniversary of the first space shuttle flight. Here's a look at some of the most striking images of NASA's iconic orbiters.
01 May 2011, 02:24 PM ET
The soonest NASA can launch shuttle Endeavour's final space mission is May 8.
01 May 2011, 01:58 PM ET
See the spaceships that have launched astronauts and cosmonauts into space in the first 50 years of human spaceflight.
01 May 2011, 09:46 AM ET
NASA is weighing when to try again to launch space shuttle Endeavour on its last mission.
29 April 2011, 06:41 PM ET
The last launch of shuttle Endeavour is delayed to no earlier than Sunday due to a power system malfunction.
29 April 2011, 06:20 PM ET
The Obamas visited the shuttle Atlantis as it is being primed for one last flight in June.
29 April 2011, 05:57 PM ET
There are many factors that dictate the optimal launch window, including orbital mechanics, lighting, wind and crew sleep cycles.
29 April 2011, 12:16 AM ET
Endeavour will carry six astronauts and an expensive astrophysics experiment to the International Space Station
28 April 2011, 11:41 PM ET
Lightning and stormy weather help create unforgettable images of shuttle Endeavour.
28 April 2011, 05:49 PM ET
Skywatchers in western and central Europe could catch a glimpse of Endeavour and its fuel tank flying across the twilight sky.
28 April 2011, 03:26 PM ET
On the eve of the penultimate space shuttle launch, a new wave of space exploration is surging forward.
28 April 2011, 10:39 AM ET
Here are a few interesting facts about NASA's space shuttle Endeavour, as the orbiter prepares to blast into space for the final time.
27 April 2011, 03:02 PM ET
A brush fire at NASA's Kennedy Space Center will not impact the space shuttle Endeavour's scheduled launch on Friday.
27 April 2011, 02:29 PM ET
Space shuttle Endeavour's pilot recounts how the close-knit astronauts reacted to news of Gabrielle Giffords' shooting.
27 April 2011, 12:24 PM ET
The space shuttle Endeavour is "go" for launch this Friday (April 29) for its 25th and final mission.
26 April 2011, 02:37 PM ET
The six astronauts slated to ride the space shuttle Endeavour on its last mission to space arrived in Florida today.
26 April 2011, 11:14 AM ET
There's an 80 percent chance of good weather for Friday's planned launch of the space shuttle Endeavour.
26 April 2011, 08:25 AM ET
NASA officials say they did not consider the coincidence when scheduling the launch.