| Acronym | Meaning |
 | AU | Astronomical Unit |
| CMB | Cosmic Microwave Background |
| NSI | NASA Science Internet / NASA Standard Initiator / National Environmental Satellite Data And Information Service |
| ERBE | Earth Radiation Budget Experiment |
| AGE | Auxiliary Ground Equipment |
| AIPS | Astronomical Image Processing System |
| HRPT | High Resolution Picture Transmission |
| NASP | National AeroSpace Plane |
| NICMOS | Near Infrared Camera/Multi Object Spectrometer |
| RHC | Rotational Hand Controller |
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