Space transport engineering, spaceflight engineering, astronautics, astronautical engineering, cosmonautics, rocketry, spacecraft, rockets and missiles.
| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| Ap&SS | Astrophysics and Space Science | In English | → Serial publications, periodicals → Astronomy  | 
| APA | Abort Programmer Assembly | In English | → Software | 
| APAE | Attached Payload Accommodations Equipment | In English | |
| APC | Adaptive Payload Carrier | In English | |
| APC | Aft Power Controller | In English | |
| APCA | Aft Power Controller Assembly | In English | |
| API | Aerospace Performance Improvement | In English | → Quality management → Aeronautics, aircraft  | 
| APLIS | Automated Payload ICD System | In English | |
| APM | Columbus Attached Pressurized Module | In English | |
| APP | Astrophysics Payload | In English | → Astronomy | 
| APPF | Automated Payload Processing Facility | In English | |
| APPLE | Advanced Propulsion Payload Effect | In English | |
| APPS | Auxiliary Payload Power System | In English | → Electrical engineering | 
| APS | Aft Propulsion System | In English | |
| APS | Attitude Propulsion System | In English | |
| APSAP | Auxiliary Propulsion System Aft Pod | In English | |
| ApSSS | Astrophysics and Space Science Supplement | In English | → Serial publications, periodicals → Astronomy  | 
| APT | Astronaut Preference Test | In English | |
| ARA | Attitude Reference Assembly | In English | |
| ARAP | Astronaut Rescue Air Pack | In English | |
| ARBl | Aerospace Research in Bulgaria | In English | → Serial publications, periodicals → Aeronautics, aircraft  | 
| ARC | Ames Research Center | In English | → Research institutes → Aeronautics, aircraft → United States  | 
| ARCOMSAT | Arab League Communications Satellite | In English | → Telecommunications | 
| ARCS | Aft Reaction Control Subsystem | In English | |
| ARD | Abort Region Determinator | In English | |
| ARGMA | Army Rocket and Guided Missile Agency | In English | → Military engineering | 
| ARISTOTELES | Applications and Research Involving Space Technologies Observing the Earth's Field from Low Earth Orbiting Satellite | In English | → Astronomy → Earth sciences  | 
| ARS | Attitude Reference System | In English | |
| ARSDA | Advanced Radiation Space Defense Application | In English | |
| ArtSa | Artificial Satellites | In English | → Serial publications, periodicals | 
| ARU | Attitude Reference Unit | In English | |
| ASA | Abort Sensor Assembly | In English | |
| AsAc | Astronautica Acta | In Latin | → Serial publications, periodicals | 
| AsAer | Astronautics Aeronautics | In English | → Serial publications, periodicals → Aeronautics, aircraft  | 
| ASAL | Agence Spatiale Algérienne | In French | → Central administration → Algeria  | 
| ASAP | ACE Shuttle Application Processing | In English | |
| ASAP | Aerospace Safety Advisory Panel | In English | → Accidents, risks, safety → Aeronautics, aircraft  | 
| ASAT | Antisatellite | In English | |
| ASAT | Anti-Satellite System | In English | → Military engineering | 
| ASATS | Antisatellite Simulation | In English | |
| ASC | American Satellite Corporation | In English | → United States | 
| ASCA | Advanced Satellite for Cosmology and Astrophysics | In English | → Cosmology → Astronomy  | 
| ASCADS | Aft Station Command and Data System | In English | |
| ASCO | Arab Satellite Communications Organization | In English | → Organizations and associations → Telecommunications  | 
| ASCO | Arab Space Communications Organization | In English | → Organizations and associations → Telecommunications  | 
| ASCP | Attitude Set/Control Panel | In English | |
| ASCP | Attitude Set Control Panel | In English | |
| ASCS | Attitude Stabilization and Control System | In English | |
| ASE | Advanced Space Engine | In English | |
| ASE | Aerospace Support Equipment | In English | |
| ASGPD | Attitude Set and Gimbal Position Display | In English | |
| ASI | Augmented Spark Igniter | In English | |
| ASI | Augmented Spark Indicator | In English | |
| ASI | Augmented System Ignition | In English | |
| ASI | Agenzia Spaziale Italiana (www.asi.it) | In Italian | → Central administration → Astronomy → Italia  | 
| Asnau | Astronautik | In Russian | → Serial publications, periodicals | 
| ASPOC | Active Spacecraft Potential Control | In English | |
| ASR | Agenţia Spaţială Română (www.rosa.ro) | In Romanian | → Astronomy | 
| ASRM | Advanced Solid Rocket Motor | In English | |
| ASRM | Abort Solid Rocket Motor | In English | |
| ASRS | Automated Shuttle Requirement System | In English | |
| ASSESS | Airborne Science Shuttle Experiments System Simulation | In English | |
| ASSH | Advanced Space Systems Hardening | In English | |
| ASTD | Advanced Space Technology Division | In English | → Astronomy | 
| ASTER | Advanced Spaceborne Thermal Emission and Reflection | In English | |
| ASTG | Aerospace Test Group | In English | → Aeronautics, aircraft | 
| ASTP | Apollo-Soyuz Test Project | In English | |
| ASTRA | Advanced Star Tracker | In English | → Astronomy | 
| ASTRA | Astrophysics and Space Sciences Transactions | In English | → Serial publications, periodicals → Astronomy  | 
| ASTRO | Ascent Trajectory Optimization | In English | → Aeronautics, aircraft | 
| ATA | Abort Time Assembly | In English | |
| ATA | Ammonia Tank Assembly | In English | |
| ATAL | Alternate Transoceanic Abort Landing | In English | |
| ATCA | Attitude Translation Control Assembly | In English | |
| ATDRS | Advanced Tracking and Data Relay Satellite | In English | → Telecommunications | 
| ATE | Aerospace Training Equipment | In English | → Education → Aeronautics, aircraft  | 
| ATG | Aerospace Test Group | In English | → Aeronautics, aircraft | 
| ATLAS | Analysis of Thrust structure Loads And Stresses | In English | |
| ATM | Apollo Telescope Mount | In English | |
| ATM | Ascent Trajectory Model | In English | |
| ATO | Abort To Orbit | In English | |
| ATOLL | Acceptance, Test Or Launch Language | In English | → Programming languages → Quality management  | 
| ATS | Advanced Technology Satellite | In English | |
| ATS | Applications Technology Satellite | In English | |
| AVCS | Attitude and Velocity Control System | In English | |
| AVE | Aerospace Vehicle Equipment | In English | → Aeronautics, aircraft | 
| AVHRR | Advanced Very High Resolution Radiometer | In English | → Meteorology, climatology → Marine research, oceanography  | 
| AVISO | Archiving, Validation and Interpretation of Satellites Oceanographic data (www.aviso.oceanobs.com) | In English | → Knowledge management → Marine research, oceanography  | 
| AvKos | Aviatsiia i Kosmonavtika = AvKos | Авиация и космонавтика | In Russian  | 
In Russian | → Serial publications, periodicals → Aeronautics, aircraft  | 
| AvKos | Авиация и космонавтика = (look above)  | 
In Russian | → Serial publications, periodicals → Aeronautics, aircraft  | 
| AVNIR | Advanced Visible and Near-Infrared Radiometer | In English | → Earth sciences | 
| AVRCS | Attitude, Velocity, Reaction Control System | In English | |
| AvTek | Aviatsionnaia Tekhnika | In Russian | → Serial publications, periodicals → Aeronautics, aircraft  | 
| AW&ST | Aviation Week and Space Technology | In English | → Astronomy → Aeronautics, aircraft  | 
| AXAF | Advanced X-ray Astrophysics Facility | In English | → Astronomy | 
| BAC | Boeing Aerospace Company | In English | → Aeronautics, aircraft | 
| BAC | Booster Assembly Contractor | In English | |
| BAE | British Aerospace | In English | → Organizations and associations → Aeronautics, aircraft → United Kingdom  | 
| BASD | Ball Aerospace Systems Division | In English | → Aeronautics, aircraft | 
| BAT | Burst Alert Telescope | In English | → Astronomy | 
| BDS2 | Booster Phase Detection System | In English | |
| BESS | Biomedical Experiment Scientific Satellite | In English | → Biological sciences → Medicine  | 
| BESS | Biomedical Experiment Support Satellite | In English | → Biological sciences → Medicine  | 
| BFC | Backup Flight Computer | In English | → Computer hardware → Aeronautics, aircraft  | 
| BFCS | Backup Flight Control System | In English | → Aeronautics, aircraft | 
| BFS | Backup Flight System | In English | → Aeronautics, aircraft | 
| BFS | Backup Flight Software | In English | → Software → Aeronautics, aircraft  | 
| BFSPLP | BFS Payload Preprocessor | In English | |
| BFSS | Backup Flight Software System | In English | → Software → Aeronautics, aircraft  | 
| BIA | Booster Insertion and Abort | In English | |
| BMAG | Body-Mounted Attitude Gyro | In English | |
| BMS | Background Measurement Satellite | In English | |
| BNAE | Bureau de Normalisation de l'Aéronautique et de l'Espace (www.bnae.asso.fr) | In French | → Standardization → Aeronautics, aircraft → France  | 
| BNSC | British National Space Center | In English | → Central administration → Astronomy → United Kingdom  | 
| BOSO | Ballistic Orbital Support Operations | In English | |
| BPS | Boost Propulsion System | In English | |
| BPV | Bipropellant Valve | In English | |
| BRAVO | Business Risk And Value if Operation in space | In English | |
| BSE | Booster Systems Engineer | In English | |
| BUAAJ | Beijing University Aeronautics and Astronautics Journal | In English | → Serial publications, periodicals → Higher education, universities → Aeronautics, aircraft → China  | 
| BUFC | Backup Flight Controller | In English | → Aeronautics, aircraft | 
| BUUA | Beijing University of Aeronautics and Astronautics (https://www.buaa.edu.cn/) | In English | → Higher education, universities → Aeronautics, aircraft → China  | 
| CADE | Controller/Attitude Direct Electronics | In English | → Electronics | 
| CaJRS | Canadian Journal of Remote Sensing | In English | → Serial publications, periodicals → Canada  | 
| CAMM | Centro Aeronautica Militare di Montagna | In Italian | → Aeronautics, aircraft | 
| CAPS | Common Attitude Pointing System | In English | |
| CAS | Cooperative Application Satellite | In English | |
| CASJ | Canadian Aeronautics and Space Journal | In English | → Serial publications, periodicals → Aeronautics, aircraft → Astronomy → Canada  | 
| CASJQ | Canadian Aeronautics and Space Journal Quarter | In English | → Serial publications, periodicals → Aeronautics, aircraft → Astronomy → Canada  | 
| CC | Crew Compartment | In English | → Aeronautics, aircraft → Transport and postal services  | 
| CCAFS | Cape Canaveral Air Force Station | In English | → 358 → Aeronautics, aircraft → United States  | 
| CCDS | Center for the Commercial Development of Space | In English | → Organizations and associations → Economics  | 
| CCFF | Cape Canaveral Forecast Facility | In English | → Meteorology, climatology | 
| CCMTA | Cape Canaveral Missile Test Annex | In English | → Military engineering | 
| CCRA | Cape Canaveral Reference Atmosphere | In English | → Meteorology, climatology | 
| CCRS | Canada Centre for Remote Sensing (www.ccrs.nrcan.gc.ca) | In English | → Research institutes → Earth sciences → Canada  | 
| CCSD | Chrysler Corporation Space Division | In English | |
| CCSDS | Consultative Committee for Space Data Systems | In English | → Organizations and associations → Electronics  | 
| CDC | Confined Detonating Cord | In English | → Military engineering | 
| CDDIS | Crustal Dynamics Data Information System (http://https://cddis.nasa.gov/) | In English | → Software → Data → Geodesy, cartography  | 
| CDSF | Commercially Developed Space Facility | In English | → Astronomy | 
| CEA | Center for Extreme Ultraviolet Astrophysics | In English | → Research institutes → Astronomy → Optics  | 
| CERES | Capacité de Renseignement Électromagnétique Spatiale | In French | → Military engineering | 
| CES | Combined Earth Sensor | In English | |
| CES | Conical Earth Sensor | In English | |
| CES | Crew Escape System | In English | |
| CFF | Columbus Free Flyer | In English | |
| CFP | Conceptual Flight Profile | In English | → Aeronautics, aircraft | 
| CGRO | Compton Gamma Ray Observatory | In English | → Astronomy | 
| CHAMP | Challenging Minisatellite Payload | In English | |
| CHIPS | Cosmic Hot Interstellar Spectrometer | In English | → Astronomy | 
| ChJSS | Chinese Journal of Space Science | In English | → Serial publications, periodicals → Astronomy → China  | 
| ChSAJ | Chinese Society of Astronautics Journal | In English | → Serial publications, periodicals → China  | 
| ChSST | Chinese Space Science Technology | In English | → Serial publications, periodicals → Astronomy → China  | 
| CIMSA | Compagnie d'Informatique Militaire, Spatiale et Aéronautique | In French | → Computer science → Military engineering → Aeronautics, aircraft  | 
| CINCNORAD | Commander-In-Chief, North American Aerospace | In English | → Military affairs → Aeronautics, aircraft  | 
| CIRCE | Confusion-limited Infrared Cosmology Explorer | In English | → Cosmology | 
| CIRRIS | Cryogenic Infrared Radiance Instrument for Shuttle | In English | |
| CIRRIS | Cryogenic Infrared Radiance Instrumentation for Shuttle | In English | |
| CLM | Circumlunar Mission | In English | |
| CLOT | Combined Loads Orbiter Test | In English | |
| CLS | Contingency Landing Site | In English | → Aeronautics, aircraft | 
| CLS | Collecte Localisation Satellites | In English | → Earth sciences | 
| CLSO | Contingency Landing Support Officer | In English | → 692973 | 
| CNAE | Comissão Nacional de Atividades Espaciais | In Portuguese | → Astronomy | 
| CNES | Centre National d'Études Spatiales (www.cnes.fr) | In French | → Research institutes → Astronomy → France  | 
| CNSA | China National Space Administration (www.cnsa.gov.cn) | In English | → Central administration → Astronomy → China  | 
| CNTS | Centre National des Techniques Spatiales | In French | → Research institutes | 
| COBAE | Comissão Brasileira de Atividades Espaciais | In Portuguese | → Astronomy → Brazil  | 
| COBE | Cosmic Background Explorer | In English | → Astronomy | 
| COFR | Certificate/Certification Of Flight Readiness | In English | → Aeronautics, aircraft | 
| COFW | Certificate Of Flight Worthiness | In English | → Aeronautics, aircraft | 
| COGMAN | Center Of Gravity of payload Manifest | In English | |
| COMAS | Combined Orbital Maneuvering and Abort System | In English | |
| COMSAT | Communications Satellite | In English | → Telecommunications | 
| ComSp | Commercial Space | In English | → Serial publications, periodicals → Astronomy  | 
| COMTR | COMSAT Technical Review | In English | → Serial publications, periodicals → 645  | 
| CONIE | Comisión Nacional de Investigación del Espacio | In Spanish | → Astronomy | 
| COP | Co-Orbiting Platform | In English | |
| COROT | COnvection, ROtation & Planetary Transits | In English | → Astronomy | 
| CORSA | Cosmic Radiation Satellite | In English | → Astronomy | 
| COSPAR | Committee on Space Research | In English | → Organizations and associations | 
| COSTAR | Corrective Optics Space Telescope Axial Replacement | In English | → Astronomy | 
| CPF | Cost Per Flight | In English | → Prices → Aeronautics, aircraft  | 
| CPG | Coarse-Pointing Gimbal | In English | |
| CPSE | Common Payload Support Equipment | In English | |
| CRAF | Comet Rendezvous/Asteroid Fly-by | In English | → Astronomy | 
| CRALT | CNES Radar Altimeter | In English | |
| CREAM | Cosmic Radiation Effects and Activation Monitor | In English | → Computer hardware | 
| CRRES | Combined Release/Radiation Effects Satellite | In English | |
| CRRES | Combined Release and Radiation Effects Satellite | In English | |
| CS | Spacelab Operations Directorate | In English | |
| CSA | Canadian Space Agency (www.space.gc.ca) | In English | → Central administration → Astronomy → Canada  | 
| CSCSAT | Commercial Synchronous Communication Satellite | In English | → Telecommunications | 
| CSF | Crew Storage Facility | In English | → Maintenance and logistics | 
| CSG | Centre Spatial Guyanais | In French | |
| CSNU | Commandement Spatial des Nations Unis | In French | → Military affairs → United Nations  | 
| CSOC | Consolidated Space Operations Center | In English | |
| CSS | Control Stick Steering | In English | → Mechanical engineering → Aeronautics, aircraft  | 
| CSS | Core Segment Simulator | In English |