| Acronym | Meaning |
 | NLDP | National Launch Development Program |
| LTP | Lunar Transient Phenomenon |
| CRISTA | Cryogenic Infrared Spectrometer Telescope For Atmosphere |
| LDEF | Long Duration Exposure Facility |
| CLAES | Cryogenic Limb Array Etalon Spectrometer |
| ACRV | Assured Crew Return Vehicle |
| SSRMS | Space Station Remote Manipulator System |
| TCS | Thermal Control System |
| ERS | Environmental Research Satellite |
| LH | Liquid Hydrogen |
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