Twenty-Five-Foot Space Simulator

Twenty-Five-Foot Space Simulator
Mariner 10 in the Twenty-Five-Foot Space Simulator
LocationJet Propulsion Laboratory, Pasadena, California
Coordinates34°12′9.8″N 118°10′22.4″W / 34.202722°N 118.172889°W / 34.202722; -118.172889
Arealess than one acre
Built1961 (1961)
ArchitectNASA
NRHP reference No.85002812
Significant dates
Added to NRHPOctober 3, 1985
Designated NHLOctober 3, 1985

The Twenty-Five-Foot Space Simulator is a chamber for testing spacecraft in space-like conditions, including extreme cold, high radiation, and near-vacuum pressure. Built in 1961, it is located at the Jet Propulsion Laboratory in Pasadena, California. It has been used to prepare many American space probes for their launches, including the Ranger, Surveyor, Mariner, and Voyager spacecraft.

The first facility of its type, the chamber served as an example for other countries seeking to establish space programs. It was declared a National Historic Landmark in 1985 and is on the National Register of Historic Places.