Located in Building 4750 at the Marshall Space Flight Center in Huntsville, Alabama, the Neutral Buoyancy Simulator was designed by the Army in 1955. It has responsibility to provide a simulated zero-gravity environment where engineers and astronauts could perform their work. The Neutral Buoyancy Simulator is a facility that is unique within the National Aeronautics and Space Administration (NASA) inventory of training facilities.
to National Park Service, having capability to support research and testing of
operational technique and materials needed to successfully perform space-manned
missions, the Neutral Buoyancy Simulator contributed significantly to the American
manned space program(1).
Gemini, Apollo, Skylab and the Space Shuttle have all benefited from the
Neutral Buoyancy Simulator(1). Until the mid-1970s, when an additional facility
was constructed at the Johnson Space Flight Center to support the Space Shuttle
Program, this facility was the only test facility that allowed astronauts to
become familiar with the dynamics of body motion under weightless conditions (1).
1985, The Neutral Buoyancy Simulator was declared a National Historic Landmark (1).