The Space Environment Simulation Lab (SESL) at the Lyndon B. Johnson Space Center in Houston, Texas, was built in 1965 to be used for thermal-vacuum testing for all U.S. manned spacecraft of the Apollo program era. Can you see the engineers?
Images credit: NASA
In this NASA‘s facilities full-scale flight hardware could be tested here. An essential procedure for the safety of astronauts and the success of the space program.
The facility is split into two test chambers A and B. In chamber A full-scale flight hardware could be tested.
Now the laboratory continues in its original use, and it is in very good condition.
“The SESL was built in 1965 to conduct thermal-vacuum testing for all US manned spacecraft of the Apollo Era. The large size of chamber A meant that full-scale flight hardware could be tested. In addition to Apollo modules, it has been used to test spacesuits, the Skylab/Apollo telescope mount system, various Space Shuttle systems, the Apollo/Soyuz docking module, and various large-scale satellite systems.
The Space Environment Simulation Lab (SESL) contains two large man-rated chambers, instrumentation and data systems, and support facilities. The test chambers have been designated a National Historic Landmark. The chambers, used for space simulation tests, have rotatable floors, dual man-locks to move from ambient air pressure to a thermal-vacuum environment, and irradiation capabilities for various solar simulations.”
see also: World’s largest Vacuum Chamber