| Acronym | Meaning |
 | KTB | Cretaceous-Tertiary Boundary |
| GOES | Geostationary Orbiting Environmental Satellite |
| DSS | Deep Space Station |
| GISS | Goddard Institute For Space Studies |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| ISTS | Institute For Space And Terrestrial Science |
| RME | Radiation Monitoring Experiment |
| NESDIS | National Environmental Satellite Data And Information Service. |
| CRL | Communication Research Lab |
| CDA | Command And Data Acquisition |
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