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, 09:06 AM ET
Samuel Ting, leader of the Alpha Magnetic Spectrometer team, tells us why everyone should care about dark matter.
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
SPACE.com takes a trip down memory lane with Daniel Brandenstein, shuttle Endeavour's first commander.
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.
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.
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.
10 May 2011, 09:46 AM ET
Endeavor's last flight (STS-134) will test a new laser guiding system by undocking and re-docking to the Space Station; an effort to make rendezvous easier and safer.
09 May 2011, 04:36 PM ET
NASA is "go" for launching space shuttle Endeavour on its last mission May 16
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, 06:13 PM ET
NASA hopes to launch Endeavour on its last mission next week.
04 May 2011, 11:25 AM ET
To set Endeavour's new launch date, NASA officials have to jockey around some other big events on the ground and in space.
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, 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, 01:48 PM ET
The bulk of the price tag associated with a scrubbed launch attempt come from the cost of the propellant.
29 April 2011, 10:20 AM ET
The Progress 42 cargo ship delivered nearly 3 tons of cargo to the International Space Station.
29 April 2011, 09:31 AM ET
NASA has a long list of VIP guests for Endeavour's afternoon launch, and even Hollywood found a way to nab seats for the launch.
29 April 2011, 08:14 AM ET
A Russian robot cargo ship will dock at the space station today, just hours before the launch of shuttle Endeavour.
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, 04:51 PM ET
The space shuttle Endeavour may be the baby of NASA's orbiter fleet, but it has an impressive legacy.
28 April 2011, 03:03 PM ET
Space Shuttle Endeavour and its orange external tank are seen over Europe about 20 minutes after launch in the evening twilight on July 15, 2009; similar to what may happen on the last launch of Endeavour.
28 April 2011, 01:03 PM ET
These super-tiny satellites could transform future space exploration and the cost of launching satellites.
28 April 2011, 11:47 AM ET
A crowd of thousands will sendoff the space shuttle Endeavour when the orbiter launches Friday.
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.