Space transport engineering, spaceflight engineering, astronautics, astronautical engineering, cosmonautics, rocketry, spacecraft, rockets and missiles.
| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| CSS | Crew Safety System | In English | → Accidents, risks, safety → Aeronautics, aircraft  | 
| CSS | Chinese Space Station | In English | → China | 
| CSTA | Crew Software Training Aid | In English | → Education → Software → Aeronautics, aircraft  | 
| CSTAR | Continuous Stellar-Tracking Attitude Reference | In English | |
| CSTC | Consolidated Space Test Center | In English | |
| CSUE | Centro Satellitare dell'Unione Europea (www.eusc.europa.eu) = EUSC | European Union Satellite Centre | In English = CSUE | Centro de Satélites de la Unión Europea | In Spanish  | 
In Italian | → European Union → Europe  | 
| CSUE | Centro de Satélites de la Unión Europea (www.eusc.europa.eu) = EUSC (look above)  | 
In Spanish | → European Union → Europe  | 
| CTF | Commit To Flight | In English | → Aeronautics, aircraft | 
| CTS | Canadian Technology Satellite | In English | → Canada | 
| CTS | Communications Technology Satellite | In English | → Telecommunications | 
| CTS | Centre des Techniques Spatiales | In French | |
| CV | Deployable Payloads Operation | In English | |
| CVA | Convair Astronautics | In English | → Organizations and associations → Aeronautics, aircraft  | 
| CYSF | Cape York Space Facility | In English | → Astronomy | 
| DADS | Dual Air Density Satellite | In English | |
| DAP | Descent Analysis Program | In English | → Computer programs → Aeronautics, aircraft  | 
| DARA | Deutsche Agentur für Raumfahrtangelegenheiten | In German | → Organizations and associations → Astronomy → Germany  | 
| DASA | Dual Aerospace Servoamplifier | In English | → Aeronautics, aircraft | 
| DC | Delta Clipper | In English | → Aeronautics, aircraft | 
| DEL | Deorbit, Entry, and Landing | In English | |
| DF | Development Flight | In English | → Aeronautics, aircraft | 
| DF | Direct Flight | In English | → Aeronautics, aircraft | 
| DFCS | Digital Flight Control System | In English | → Aeronautics, aircraft | 
| DFI | Development Flight Instrumentation | In English | → Aeronautics, aircraft | 
| DFI | Development Flight Integration | In English | → Aeronautics, aircraft | 
| DFRC | Dryden Flight Research Center | In English | → Research institutes → Aeronautics, aircraft → United States  | 
| DFRF | Dryden Flight Research Facility | In English | → Aeronautics, aircraft | 
| DFVLR | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt | In German | → Research institutes → Aeronautics, aircraft → Germany  | 
| DIASP | Dipartimento di Ingegneria Aeronautica e Spaziale | In Italian | → Aeronautics, aircraft | 
| DLO | Director of Launch Operations | In English | |
| DLR | Deutsche Forschungsanstalt für Luft- und Raumfahrt (www.dlr.de) | In German | → Research institutes → Aeronautics, aircraft → Germany  | 
| DLR | Deutsches Zentrum für Luft- und Raumfahrt (www.dlr.de) | In German | → Research institutes → Aeronautics, aircraft → Germany  | 
| DME | Direction des Missiles et de l'Espace | In French | → Military affairs → Military engineering | 
| DMSP | Defense Meterological Satellite Program | In English | → Military affairs → Meteorology, climatology  | 
| DMSP | Defense Meteorological Satellite Program | In English | → Meteorology, climatology → Military engineering  | 
| DMSS | Defense Meteorological Satellite System | In English | → Meteorology, climatology → Military engineering  | 
| DNA | Direction de la Navigation Aérienne | In French | → Transport and postal services | 
| DNO | Descending-Node Orbit | In English | |
| DOC | Drift-Orbit Correction | In English | |
| DODSTP | Department of Defense Standard Satellite | In English | → Military affairs | 
| DOI | Descent Orbit Insertion | In English | |
| DOI | Direct Orbit Insertion | In English | |
| DOMSAT | Domestic Satellite | In English | |
| DORIS | Determination of Orbit Radio Positioning Integrated from Shuttle | In English | → Telecommunications | 
| DORIS | Doppler Orbitography and Radiopositioning Integrated by Satellite | In English | |
| DPCL | Dedicated Payload Communication Link | In English | → Telecommunications | 
| DPS | Descent Propulsion System | In English | |
| DRS | Data Relay Satellite | In English | → Data | 
| DRSS | Data Relay Satellite System | In English | → Data | 
| DS3 | Deep-Space Surveillance System | In English | |
| DSAT | Defensive Satellite | In English | → Military engineering | 
| DSCS | Defense Satellite Communications System | In English | → Military engineering | 
| DSCS | Defense Support Communication Satellite | In English | → Military engineering | 
| DSIF | Deep-Space Instrumentation Facility | In English | |
| DSIFE | Deep-Space Instrumentation Facility Equipment | In English | |
| DSIS | Defense Satellite Information System | In English | → Military affairs | 
| DSN | Deep-Space Network | In English | |
| DSS | Deep Space Station | In English | → Astronomy | 
| DSS | Deep-Space Station | In English | |
| DSSC | Deep Space Station Complex | In English | → Astronomy | 
| DVB-S | Digital Video Broadcasting - Satellite | In English | → Telecommunications | 
| DWS | Disaster Warning Satellite | In English | |
| EADI | Electronic Attitude Director Indicator | In English | |
| EATR | Extravehicular Assist Teleoperator Robot | In English | |
| ECAL | East Coast Abort Landing | In English | |
| ECATA | European Consortium for Advanced Training in Aerospace (www.ecata.org) | In English | → Organizations and associations → Specialized or polytechnical colleges → Aeronautics, aircraft → Europe  | 
| ECLSS | Environmental Control and Life Support System | In English | |
| ECSS | European Cooperation for Space Standardization | In English | → Standardization → Astronomy  | 
| EDC | EUROLAS Data Center | In English | → Data → Geodesy, cartography  | 
| EDO | Extended Duration Orbiter | In English | |
| EDO | Extended-Duration Orbiter | In English | |
| EDOMP | Extended Duration Orbiter Medical Project | In English | → Medicine | 
| EDRS | European Data Relay Satellite | In English | → Data → Telecommunications  | 
| EEM | Earth Entry Module | In English | |
| EES | Ejection Escape Suit | In English | → Aeronautics, aircraft | 
| EES | Emergency Ejection Suit | In English | → Aeronautics, aircraft | 
| EES | Escape Ejection Suit | In English | → Aeronautics, aircraft | 
| EEU | Extravehicular Excursion Unit | In English | |
| EFA | Experiment Flight Application | In English | → Aeronautics, aircraft | 
| EFP | ESA Furnished Property | In English | |
| EGB | Electronic Gimbal Box | In English | → Electronics | 
| EGNOS | European Geostationary Navigation Overlay Service | In English | |
| EHOT | External Hydrogen/Oxygen Tank | In English | |
| EIU | Engine Interface Unit | In English | → Human-computer interaction | 
| ELACS | Extended-Life Attitude Control System | In English | |
| ELDO | European Launcher Development Organisation | In English | → Organizations and associations | 
| ELINT | Electronic Intelligence Satellite | In English | → Electronics | 
| ELS | Eastern Launch Site | In English | |
| ELV | Expendable Launch Vehicle | In English | → Aeronautics, aircraft | 
| ELV | Earth Launch Vehicle | In English | → Aeronautics, aircraft | 
| EMSEA | Environmental Monitoring from Space of East Asia | In English | → Threats to the environment | 
| EMU | Extravehicular Mobility Unit | In English | |
| ENAC | École Nationale de l'Aviation Civile | In French | → Specialized or polytechnical colleges | 
| ENSAE | École Nationale Supérieure de l'Aéronautique et de l'Espace | In French | → Specialized or polytechnical colleges → Aeronautics, aircraft  | 
| ENVISAT | Environmental Satellite | In English | → Threats to the environment | 
| EOAST | Earth-Oriented Applications and Space Technology | In English | → Serial publications, periodicals → Earth sciences  | 
| EODRS | Earth Observation Data Retrieval System | In English | → Earth sciences | 
| EOHT | External Oxygen and Hydrogen Tank | In English | |
| EOI | Earth Orbit Insertion | In English | |
| EOL | Earth Orbit Launch | In English | |
| EOM | Earth Orbital Mission | In English | |
| EOPF | End of Powered Flight | In English | → Aeronautics, aircraft | 
| EORC | Earth Observation Research Center (www.eorc.jaxa.jp) | In English | → Research institutes → Earth sciences → Japan  | 
| EORSAT | Electronic Ocean Reconstruction Satellite | In English | → Marine research, oceanography | 
| EOS | Earth Observation Satellite | In English | |
| EOS | Earth-Orbit Shuttle | In English | |
| EOSS | Earth-Orbital Space Station | In English | |
| EOSS | Extravehicular Activity Operational Slide-Wire System | In English | |
| EPOC | External Payload Operations Center | In English | |
| ERBS | Earth Radiation Budget Satellite | In English | → Astronomy | 
| ERINT | Exoatmospheric Reentry Vehicle Interceptor | In English | |
| ERIS | Endoatmospheric Reentry Vehicle Interceptor System | In English | |
| EROS | Earth Resources Observations System | In English | → Earth sciences | 
| ERS | European Remote Sensing (Satellite) | In English | |
| ERS | Earth Resources Satellite | In English | → Earth sciences | 
| ERS | Environmental Research Satellite | In English | → Threats to the environment | 
| ERS | Entry and Recovery Simulation | In English | → Aeronautics, aircraft | 
| ERSIR | Earth Resources Shuttle Imaging Radar | In English | → Earth sciences | 
| ERTS | Earth Resources Technology Satellite | In English | → Earth sciences | 
| ERV | Experimental Reentry Vehicle | In English | |
| ESA | European Space Agency | In English | → Astronomy | 
| ESA-CWE | European Space Agency - Study on Collaborative Working environments for large organizations | In English | → Computer-based techniques → Europe  | 
| ESABu | European Space Agency Bulletin | In English | → Serial publications, periodicals → Astronomy  | 
| ESAJ | European Space Agency Journal | In English | → Serial publications, periodicals → Astronomy  | 
| ESAST | European Space Agency Scientific Technical Review | In English | → Serial publications, periodicals → Astronomy  | 
| ESCS | Electronic Spacecraft Simulator | In English | → Computer simulation | 
| ESDAC | European Space Data Center | In English | → Astronomy → Earth sciences  | 
| ESEO | European Student Earth Orbiter | In English | → Specialized or polytechnical colleges → Higher education, universities  | 
| ESIS | ESA Space Information Systems | In English | → Astronomy | 
| ESMC | Eastern Space and Missile Center | In English | → Military engineering | 
| ESMCR | Eastern Space and Missile Center Regulation | In English | → Military engineering | 
| ESMO | European Student Moon Orbiter | In English | → Planets and satellites → Specialized or polytechnical colleges → Higher education, universities  | 
| ESMR | European Student Moon Rover | In English | → Vehicle engineering → Planets and satellites → Specialized or polytechnical colleges → Higher education, universities  | 
| ESOC | European Space Operations Centre | In English | → Astronomy | 
| ESOC | European Space Operations Center | In English | → Astronomy | 
| ESPC | European Space Power Conference | In English | → Energy economics | 
| ESPI | European Space Policy Institute | In English | → International relations → Astronomy  | 
| ESPON | European Spatial Planning Observation Network | In English | → Organizations and associations → Astronomy → Europe  | 
| ESRIN | European Space Research Institute | In English | → Research institutes → Astronomy → Earth sciences  | 
| ESRO | European Space Research Organisation | In English | → Astronomy | 
| ESRO | European Space Research Organization | In English | → Astronomy → Earth sciences  | 
| ESS | Early Space Station | In English | |
| ESTEC | European Space Research and Technology Centre | In English | → Astronomy | 
| ESTEC | European Space Technology Center | In English | |
| ESTP | European Space Technology Platform (www.estp-space.eu) | In English | → Organizations and associations → Astronomy → Europe  | 
| ETO | Earth To Orbit | In English | |
| EUMETSAT | European Meterological Satellite (Organisation) | In English | → Organizations and associations → Meteorology, climatology  | 
| EuPCD | European Crew Personal Dosimeter | In English | |
| EUROCOMSAT | European Consortium Communications Satellite | In English | → Telecommunications | 
| EUSC | European Union Satellite Centre (www.eusc.europa.eu) = CSUE (look above)  | 
In English | → European Union → Europe  | 
| EUTELSAT | European Telecommunications Satellite Organization | In English | → Organizations and associations → Telecommunications  | 
| EUVE | Extreme Ultraviolet Explorer | In English | → Astronomy | 
| EV | Entry Vehicle | In English | |
| EVA | Extravehicular Activity | In English | |
| EVAS | Extravehicular Activity System | In English | |
| EVATA | Extravehicular Activity Translational Aid | In English | |
| EVC | Extravehicular Communications | In English | → Telecommunications | 
| EVCF | Eastern Vehicle Checkout Facility | In English | |
| EVCS | Extravehicular Communications System | In English | |
| EVCU | Extravehicular Communications Umbilical | In English | |
| EVLSS | Extravehicular Life Support System | In English | |
| EVM | Earth-Viewing Module | In English | → Earth sciences | 
| EVMU | Extravehicular Mobility Unit | In English | |
| EVS | Extravehicular Suit | In English | |
| EVSC | Extravehicular Suit Communications | In English | |
| EVSS | Extravehicular Space Suit | In English | |
| EVSTC | Extravehicular Suit Telecommunications | In English | → Telecommunications | 
| EVSU | Extravehicular Space Unit | In English | |
| EVT | Extravehicular Transfer | In English | |
| FACC | Ford Aerospace and Communications Corporation | In English | → Aeronautics, aircraft → Telecommunications  | 
| FACT | Flight Acceptance Composite Test | In English | → Quality management → Aeronautics, aircraft  | 
| FAF | First Aerodynamic Flight | In English | → Aeronautics, aircraft | 
| FAL | First Approach and Landing | In English | → Aeronautics, aircraft | 
| FAMOS | Flight Acceleration Monitor System | In English | → Aeronautics, aircraft | 
| FAO | Flight Activities Officer | In English | → Aeronautics, aircraft | 
| FAP | Freedom Attached Payloads | In English | |
| FAR | Flight Acceptance Review | In English | → Quality management → Aeronautics, aircraft  | 
| FAR | Flight Analysis Review | In English | → Aeronautics, aircraft | 
| FAS | Flight Analysis System | In English | → Aeronautics, aircraft | 
| FASCOS | Flight Acceleration Safety Cutoff System | In English | → Accidents, risks, safety → Aeronautics, aircraft  | 
| FAT | Flight Attitude Table | In English | |
| FBAS | Fixed-Base Aft Station | In English | → Aeronautics, aircraft | 
| FBB | Flyback Booster | In English | → Aeronautics, aircraft | 
| FC | Flight Computer | In English | → Computer hardware → Aeronautics, aircraft  | 
| FC | Flight Control | In English | → Aeronautics, aircraft | 
| FC | Flight Critical | In English | → Aeronautics, aircraft | 
| FCAF | Flight Crew Accommodation Facility | In English | → Aeronautics, aircraft | 
| FCAP | Flight Control Applications Program | In English | → Software → Aeronautics, aircraft  | 
| FCD | Flight Control Division | In English | → Aeronautics, aircraft | 
| FCDB | Flight Control Data Bus | In English | → Aeronautics, aircraft → Computer science  | 
| FCE | Flight Control Equipment | In English | → Aeronautics, aircraft | 
| FCE | Flight Crew Equipment | In English | → Aeronautics, aircraft | 
| FCEF | Flight Crew Equipment Facility | In English | → Aeronautics, aircraft | 
| FCF | First Captive Flight | In English | → Aeronautics, aircraft | 
| FCF | Functional Check Flight | In English | → Aeronautics, aircraft | 
| FCH | Flight Controller's Handbook | In English | → Aeronautics, aircraft | 
| FCHL | Flight Control Hydraulics Laboratory | In English | → Research institutes → Aeronautics, aircraft  | 
| FCI | Flight Control Indicator | In English | → Aeronautics, aircraft | 
| FCI | Flight Crew Integration | In English | → Aeronautics, aircraft | 
| FCIM | Flight Control Interface Module | In English | → Human-computer interaction → Aeronautics, aircraft  |