24 July 2013, 12:36 PM ET
An astronaut holds a sample of lunar soil in a container.
23 July 2013, 10:52 AM ET
Two men sit in the control room of the Plum Brook Facility before it was shutdown.
22 July 2013, 10:17 AM ET
This spacecraft booster was launched from Cape Canaveral in what was known as a Project Mercury test.
19 July 2013, 10:26 AM ET
The Command Module splashes down after a perilous space flight.
18 July 2013, 10:16 AM ET
A test subject being suited up for studies on the Reduced Gravity Walking Simulator.
17 July 2013, 10:32 AM ET
Astronaut Edgar Mitchell refers to a map as he moves across the Moon's surface.
15 July 2013, 08:42 AM ET
Most often used as a photo chase aircraft, the Beech T-34C was used in some research as well.
12 July 2013, 09:22 AM ET
The Apollo 15 Command Module Endeavour, with astronauts aboard, nears a safe touchdown.
11 July 2013, 09:30 AM ET
The X-2 sits after a rough landing with a collapsed nose landing gear.
10 July 2013, 09:54 AM ET
An astronaut places tools into the Lunar Roving Vehicle.
09 July 2013, 09:46 AM ET
The crew is shown leaving the Crew Compartment Trainer.
08 July 2013, 09:35 AM ET
Astronaut Schmitt stands next to a huge, split boulder.
05 July 2013, 11:05 AM ET
The Space Shuttle Enterprise rolls out as the Star Trek cast watches.
04 July 2013, 11:31 AM ET
Space Shuttle Atlantis is shown during rollout onto Launch Pad 39A.
03 July 2013, 10:12 AM ET
Astronaut John W. Young salutes the U.S. Flag.
02 July 2013, 09:56 AM ET
John C. Houbolt explains his space rendezvous concept for lunar landings.
01 July 2013, 09:46 AM ET
The X-29 Flight Research Aircraft is one of the most unusually designed aircraft in aviation history.
27 June 2013, 04:29 AM ET
The B-52 Mothership flies over the X-15 after a research flight.
26 June 2013, 10:01 AM ET
A test model of the ATS is shown during testing in the Space Environment Simulation Laboratory.
25 June 2013, 10:00 AM ET
The orbiter Discovery lands at KSC's landing facility.
24 June 2013, 11:53 AM ET
An RCA engineer adjusts a propulsion thruster on a communication satellite.
21 June 2013, 10:26 AM ET
Dr. Wernher von Braun stands in front of a Saturn IB launch vehicle at Kennedy Space Flight Center.
20 June 2013, 11:40 AM ET
A view of the test section of NACA's Tunnel #1 shown with a model in place for testing.
19 June 2013, 10:09 AM ET
The Space Shuttle Endeavour prepares to rendezvous with the FGB.
18 June 2013, 10:25 AM ET
The SR-71, on loan from the U.S. Air Force, deploys its drag chute before its nose gear touches the runway after a research flight.
17 June 2013, 09:22 AM ET
A scale model of the X-15 is observed in drop tests inside a wind tunnel.
14 June 2013, 09:57 AM ET
A mechanic checks the turboprop engine prior to testing in the Altitude Wind Tunnel.
13 June 2013, 10:05 AM ET
The X-2 drops away from the B-50 Mothership on an unpowered flight.
12 June 2013, 09:48 AM ET
The International Space Station moves away from the Space Shuttle Discovery after a 1999 mission.
11 June 2013, 10:08 AM ET
A unique shot of Atlantis shows a flock of birds taking flight as it waits for launch.
10 June 2013, 10:14 AM ET
The STS-51-L Space Shuttle Challenger and its crew were lost shortly after launch.
07 June 2013, 10:06 AM ET
The STS-107 crew trains for their mission, learning about the experiments they will be on board.
06 June 2013, 03:42 PM ET
The successful second launch attempt of the Space Shuttle Discovery carried a crew of five and the ATLAS 2 into space.
05 June 2013, 09:53 AM ET
A NASA administrator addresses the audience at the rollout of the Space Shuttle Orbiter Endeavour.
04 June 2013, 02:49 PM ET
The first crew for the Space Shuttle Approach and Landing Tests are pictured with the Enterprise.
03 June 2013, 09:55 AM ET
A NASA engineer watches as a scale model of the Apollo Command Module is prepared for dynamic stability tests.