| MSOB |
Manned Spacecraft Operations Building |
In English |
→ Spaceflight engineering, astronautics |
| MSOCC |
Multisatellite Operations Control Center |
In English |
→ Spaceflight engineering, astronautics |
| MSS |
Medium/Small Satellite Servicing |
In English |
→ Spaceflight engineering, astronautics |
| MSSRV |
Mars Surface-Sample Return Vehicle |
In English |
→ Vehicle engineering
→ Spaceflight engineering, astronautics |
| MSSTM |
Military Space System Technology Model |
In English |
→ Military engineering
→ Spaceflight engineering, astronautics |
| MSSTP |
Military Space Systems Technology Plan |
In English |
→ Military engineering
→ Spaceflight engineering, astronautics |
| MSVP |
Master Shuttle Verification Plan |
In English |
→ Spaceflight engineering, astronautics |
| MT |
Mission Trajectory |
In English |
→ Spaceflight engineering, astronautics |
| MTOGW |
Maximum Takeoff Gross Weight |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| MTOW |
Maximum Takeoff Weight |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| MTPE |
Mission To Planet Earth |
In English |
→ Planets and satellites
→ Spaceflight engineering, astronautics |
| MUA |
Maximum Usable Altitude |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| MŰI |
Magyar Űrkutatási Iroda |
In Hungarian |
→ Astronomy
→ Spaceflight engineering, astronautics |
| MVF |
Manned Vertical Flight |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| MVI |
Microgravity Vestibular Investigation |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| MVM |
Mariner Venus/Mercury |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| NAA |
North American Aircraft |
In English |
→ Spaceflight engineering, astronautics |
| NaAIJ |
Nanjing Aeronautical Institute Journal |
In English |
→ Serial publications, periodicals
→ Aeronautics, aircraft |
| NAC |
Naval Avionics Center |
In English |
→ Aeronautics, aircraft |
| NACA |
National Advisory Committee for Aeronautics |
In English |
→ Aeronautics, aircraft |
| NAEC |
Naval Air Engineering Center |
In English |
→ Aerodynamics
→ Aeronautics, aircraft |
| NAS |
National Airspace System |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NAS |
Naval Air Station |
In English |
→ Public administration, government
→ Aeronautics, aircraft |
| NAS |
Nonavionics Simulator |
In English |
→ Computer simulation
→ Aeronautics, aircraft |
| NAS |
National Aircraft Standard |
In English |
→ Standardization
→ Aeronautics, aircraft |
| NASA |
National Aeronautics and Space Administration (www.nasa.gov) |
In English |
→ Central administration
→ Astronomy
→ Aeronautics, aircraft |
| NASAC |
NASA Conference Publication |
In English |
→ Serial publications, periodicals
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASAL |
NASA Circular Letter |
In English |
→ Serial publications, periodicals
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASAR |
NASA Reference Publication |
In English |
→ Serial publications, periodicals
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASAS |
NASA Special Publication |
In English |
→ Serial publications, periodicals
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASCOM |
NASA Communications |
In English |
→ Spaceflight engineering, astronautics
→ Telecommunications |
| NASDA |
National Space Development Agency |
In English |
→ Central administration
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASM |
National Air and Space Museum (www.nasm.si.edu) |
In English |
→ Museums
→ Astronomy
→ Aeronautics, aircraft |
| NASO |
North American Space Operations |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| NASP |
National AeroSpace Plane |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NASTRAN |
NASA Structural Analysis Program |
In English |
→ Spaceflight engineering, astronautics |
| NATF |
Naval Air Test Facility |
In English |
→ Aerodynamics
→ Aeronautics, aircraft |
| NAVDAD |
Navigational Derived Air Data |
In English |
→ Aeronautics, aircraft |
| NAVSAT |
Navigation Satellite |
In English |
→ Spaceflight engineering, astronautics
→ Transport and postal services |
| NAVT |
NASA Altimeter Verification Telemetry |
In English |
→ Spaceflight engineering, astronautics |
| NCC |
NASA Communications Control |
In English |
→ Spaceflight engineering, astronautics |
| NCC |
NASA Class Code |
In English |
→ Spaceflight engineering, astronautics |
| NCOS |
National Commission On Space |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| ND |
NASA Document |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| NDGPS |
Nationwide Differential Global Positioning System |
In English |
→ Geodesy, cartography
→ Spaceflight engineering, astronautics
→ Telecommunications |
| NEACP |
National Emergency Airborne Command Post |
In English |
→ Military engineering
→ Aeronautics, aircraft |
| NEEDS |
NASA End-To-End Data System |
In English |
→ Data
→ Astronomy
→ Spaceflight engineering, astronautics |
| NEMS |
NASA Equipment Management System |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| NERVA |
Nuclear Engine for Rocket Vehicle Application |
In English |
→ Nuclear technology
→ Spaceflight engineering, astronautics |
| NESDIS |
National Environmental Satellite Data and Information Service |
In English |
→ Nature
→ Spaceflight engineering, astronautics |
| NESP |
Naval Extremely high frequency Satellite Program |
In English |
→ Military engineering
→ Spaceflight engineering, astronautics |
| NESS |
National Environmental Satellite Service |
In English |
→ Environment, environmental sciences
→ Spaceflight engineering, astronautics |
| NET |
NASA Employee Team |
In English |
→ Spaceflight engineering, astronautics |
| NEVS |
NASA Equipment Visibility System |
In English |
→ Spaceflight engineering, astronautics |
| NFS |
NASA FAR Supplement |
In English |
→ Spaceflight engineering, astronautics |
| NGA |
National Geospatial-Intelligence Agency |
In English |
→ Central administration
→ Spaceflight engineering, astronautics |
| NGT |
NASA Ground Terminal |
In English |
→ Spaceflight engineering, astronautics |
| NHB |
NASA Handbook |
In English |
→ Spaceflight engineering, astronautics |
| NIFO |
Neidentigita Fluganta Objekto
= OVNI | Objet Volant Non Identifié | In French
= OVNI | Objecte Volador No Identificat | In Catalan
= НЛО | Неидентифициран летящ обект | In Bulgarian
= OVNI | Objeto Volador No Identificado | In Spanish
= UFO | Unidentifiziertes Flugobjekt | In German
= UFO | Unidentified Flying Object | In English
= UFO | Unknown Flying Object | In English
= UFO | Uidentificeret flyvende objekt | In Danish
= UFO | Unbekend fleanend objekt | In Frisian
= עב"מ | עצם בלתי מזוהה | In Hebrew
= OVNI | Oggetto Volante Non Identificato | In Italian
= NLO | Neidentificēts lidojošs objekts | In Latvian
= UFO | Uidentifisert flygende objekt | In Norwegian
= UFO | Uidentifisert flygande objekt | In Nynorsk
= NOL | Niezidentyfikowany Obiekt Latający | In Polish
= OVNI | Objeto Voador Não Identificado | In Portuguese
= OZN | Obiect Zburător Neidentificat | In Romanian
= НЛО | Неопознанный летающий объект | In Russian
= NLO | Neidentifikovani leteći objekat | In Serbo-Croatian
|
In Esperanto |
→ Spaceflight engineering, astronautics |
| NLO |
Neidentifikovani leteći objekat
= NIFO, OVNI, НЛО, UFO, עב"מ, NOL, OZN (look above)
|
In Serbo-Croatian |
→ Spaceflight engineering, astronautics |
| NLO |
Neidentificēts lidojošs objekts
= NIFO, OVNI, НЛО, UFO, עב"מ, NOL, OZN (look above)
|
In Latvian |
→ Spaceflight engineering, astronautics |
| NLR |
Nationaal Lucht- en Ruimtevaartlaboratorium |
In Dutch |
→ Research institutes
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NMI |
NASA Management Instruction |
In English |
→ Management
→ Spaceflight engineering, astronautics |
| NOES |
National Operational Environmental Satellite |
In English |
→ Environment, environmental sciences
→ Spaceflight engineering, astronautics |
| NOL |
Niezidentyfikowany Obiekt Latający
= NIFO, OVNI, НЛО, UFO, עב"מ, NLO, OZN (look above)
|
In Polish |
→ Spaceflight engineering, astronautics |
| NORAD |
North American Air Defense Command |
In English |
→ 358
→ Military engineering
→ Aeronautics, aircraft |
| NORAD |
North American Aerospace Defense Command |
In English |
→ 358
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NOSS |
National Oceanic Satellite System |
In English |
→ Marine research, oceanography
→ Spaceflight engineering, astronautics |
| NPC |
NASA Procurement Circular |
In English |
→ Spaceflight engineering, astronautics |
| NPC |
NASA Publication Control |
In English |
→ Spaceflight engineering, astronautics |
| NPD |
NASA Policy Directive |
In English |
→ Management
→ Spaceflight engineering, astronautics |
| NPN |
NASA Part Number |
In English |
→ Spaceflight engineering, astronautics |
| NPS |
Nonpropulsive Stage |
In English |
→ Spaceflight engineering, astronautics |
| NPS |
NASA Planning Studies |
In English |
→ Spaceflight engineering, astronautics |
| NPSS |
NASA Packet Switching System |
In English |
→ Spaceflight engineering, astronautics |
| NRA&A |
Nouvelle Revue d'Aéronautique et d'Astronautique |
In French |
→ Serial publications, periodicals
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NRALT |
NASA Radar Altimeter |
In English |
→ Geodesy, cartography
→ Spaceflight engineering, astronautics |
| NRDS |
Nuclear Rocket Development Station |
In English |
→ Nuclear technology
→ Spaceflight engineering, astronautics |
| NS |
Nuclear Shuttle |
In English |
→ Nuclear technology
→ Spaceflight engineering, astronautics |
| NSC |
NASA Standard Computer |
In English |
→ Hardware
→ Spaceflight engineering, astronautics |
| NSD |
NASA Standard Detonator |
In English |
→ Spaceflight engineering, astronautics |
| NSI |
NASA Science Internet |
In English |
→ Internet
→ Spaceflight engineering, astronautics
→ Astronomy |
| NSI |
NASA Standard Initiator |
In English |
→ Spaceflight engineering, astronautics |
| NSIF |
Near-Space Instrumentation Facility |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| NSLD |
NASA Shuttle Logistics Depot |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| NSO |
NASA Support Operation |
In English |
→ Spaceflight engineering, astronautics |
| NSP |
NASA Support Plan |
In English |
→ Spaceflight engineering, astronautics |
| NSTI |
NASA Simulation Traffic Interface |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NSTL |
National Space Technology Laboratories |
In English |
→ Research institutes
→ Astronomy
→ Spaceflight engineering, astronautics |
| NSTS |
National Space Transportation System |
In English |
→ Spaceflight engineering, astronautics |
| NTD |
NASA Test Director |
In English |
→ Spaceflight engineering, astronautics |
| NTS |
Navigation Technology Satellite |
In English |
→ Spaceflight engineering, astronautics |
| NTSO |
NASA Test Support Office |
In English |
→ Spaceflight engineering, astronautics |
| NUAAJ |
Nanjing University Aeronautics and Astronautics Journal |
In English |
→ Serial publications, periodicals
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| NV |
NASA Altimeter Verification |
In English |
→ Spaceflight engineering, astronautics |
| NVAFB |
North Vandenberg Air Force Base |
In English |
→ 358
→ Aeronautics, aircraft |
| NVR |
NASA Waiver |
In English |
→ Spaceflight engineering, astronautics |
| OAA |
Orbiter Alternate Airfield |
In English |
→ Spaceflight engineering, astronautics |
| OAA |
Orbiter Access Arm |
In English |
→ Spaceflight engineering, astronautics |
| OAC |
Orbital Activation and Checkout |
In English |
→ Spaceflight engineering, astronautics |
| OAFD |
Orbiter Aft Flight Deck |
In English |
→ Spaceflight engineering, astronautics |
| OAFTO |
Orbiter Atmospheric Flight Test Office |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OAHTS |
Orbiter Avionics Hardware Tracking System |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OALC |
Ogden Air Logistics Center |
In English |
→ Maintenance and logistics
→ Aeronautics, aircraft |
| OAME |
Orbital Attitude and Maneuvering Electronics |
In English |
→ Electronics
→ Spaceflight engineering, astronautics |
| OAMP |
Optical Airborne Measurements Program |
In English |
→ Aeronautics, aircraft |
| OAMS |
Orbital Attitude and Maneuvering System |
In English |
→ Spaceflight engineering, astronautics |
| OAO |
Orbital Astronomical Observatory |
In English |
→ Observatories
→ Spaceflight engineering, astronautics |
| OARE |
Orbital Acceleration Research Experiment |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| OARS |
Orbiter Avionics Radiation Specification |
In English |
→ Aeronautics, aircraft |
| OAS |
Orbiter Aeroflight Simulator |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OAS |
Orbiter Atmospheric Simulator |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OAS |
Orbiter Avionics Simulator |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OAS |
Orbiter Avionics System |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OASCB |
Orbiter Avionics Software Control Board |
In English |
→ Software
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OASIS |
Orbit Avionics Software Integration Study |
In English |
→ Software
→ Aeronautics, aircraft |
| OASM |
Office of Aerospace Medicine |
In English |
→ Medicine
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OAST |
Office of Aeronautics and Space Technology |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OATS |
Orbiter Avionics Tracking System |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OCA |
Orbiter Capability Analysis |
In English |
→ Spaceflight engineering, astronautics |
| OCA |
Orbiter Capability Assessment |
In English |
→ Spaceflight engineering, astronautics |
| OCAC |
Orbiter Cabin Air Cleaner |
In English |
→ Spaceflight engineering, astronautics |
| OCALC |
OKlahoma City Air Logistics Center |
In English |
→ Maintenance and logistics
→ Aeronautics, aircraft |
| OCCP |
Orbit Command Computer Program |
In English |
→ Software
→ Spaceflight engineering, astronautics |
| OCDR |
Orbiter Critical Design Review |
In English |
→ Spaceflight engineering, astronautics |
| OCF |
Orbiter Computational Facilities |
In English |
→ Computer science
→ Spaceflight engineering, astronautics |
| OCH |
Orbiter Common Hardware |
In English |
→ Hardware
→ Spaceflight engineering, astronautics |
| OCTW |
Optical Communications Through the shuttle Window |
In English |
→ Spaceflight engineering, astronautics |
| ODF |
Orbit Determination Facility |
In English |
→ Astronomy
→ Spaceflight engineering, astronautics |
| ODIN |
Orbital Design Integration System |
In English |
→ Spaceflight engineering, astronautics |
| ODM |
Orbiter Disconnect Mechanism |
In English |
→ Spaceflight engineering, astronautics |
| ODRC |
Orbiter Data Reduction Center |
In English |
→ Data
→ Spaceflight engineering, astronautics |
| OEAS |
Orbital Emergency Arresting System |
In English |
→ Spaceflight engineering, astronautics |
| OECS |
Orbital Express Capture System |
In English |
→ Spaceflight engineering, astronautics |
| OES |
Orbiter Emergency Site |
In English |
→ Spaceflight engineering, astronautics |
| OET |
Orbiter Engineering and Test |
In English |
→ Spaceflight engineering, astronautics |
| OEX |
Orbiter Experiment |
In English |
→ Spaceflight engineering, astronautics |
| OF |
Orbital Flight |
In English |
→ Spaceflight engineering, astronautics |
| OFDS |
Orbiter Flight Dynamic Simulator |
In English |
→ Computer simulation
→ Spaceflight engineering, astronautics |
| OFI |
Operational Flight Instrumentation |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OFK |
Optical Flight Kit |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OFP |
Operational Flight Program |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OFP |
Orbiter Flight Program |
In English |
→ Spaceflight engineering, astronautics |
| OFP |
Operational Flight Profile |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OFS |
Orbital/Orbital Flight System |
In English |
→ Spaceflight engineering, astronautics |
| OFS |
Orbiter Flight Simulator |
In English |
→ Spaceflight engineering, astronautics |
| OFS |
Orbiter Functional Simulator |
In English |
→ Spaceflight engineering, astronautics |
| OFT |
Orbital Flight Training |
In English |
→ Spaceflight engineering, astronautics |
| OFT |
Orbital Flight Test |
In English |
→ Spaceflight engineering, astronautics |
| OFT |
Operational Flight Test |
In English |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OFTDS |
Orbital Flight Test Data System |
In English |
→ Data
→ Spaceflight engineering, astronautics |
| OGMT |
Orbiter Greenwich Mean Time |
In English |
→ Spaceflight engineering, astronautics |
| OHA |
Orbital Height Adjustment Maneuver |
In English |
→ Spaceflight engineering, astronautics |
| OHGVT |
Orbital Horizontal Ground Vibration Test |
In English |
→ Spaceflight engineering, astronautics |
| OI |
Orbiter Instrumentation |
In English |
→ Spaceflight engineering, astronautics |
| OI |
Orbiter Insertion |
In English |
→ Spaceflight engineering, astronautics |
| OIA |
Orbiter Interface Adapter |
In English |
→ Human-computer interaction
→ Spaceflight engineering, astronautics |
| OIC |
Orbital Integrated Checkout |
In English |
→ Spaceflight engineering, astronautics |
| OIE |
Orbiter Integration Engineering |
In English |
→ Spaceflight engineering, astronautics |
| OIS |
Orbit Injection Subsystem |
In English |
→ Spaceflight engineering, astronautics |
| OIS |
Orbit Inserting System |
In English |
→ Spaceflight engineering, astronautics |
| OIS |
Orbiter Instrumentation Systems |
In English |
→ Spaceflight engineering, astronautics |
| OIS |
Orbit Insertion Subsystem |
In English |
→ Spaceflight engineering, astronautics |
| OISTP |
Oxygen-Iodine SUpersonic Technology Program |
In English |
→ Aeronautics, aircraft |
| OIT |
Orbiter Integrated Test |
In English |
→ Spaceflight engineering, astronautics |
| OIT |
Orbiter Integration Test |
In English |
→ Spaceflight engineering, astronautics |
| OIT |
Orbiter Interface Test |
In English |
→ Spaceflight engineering, astronautics |
| OIVS |
Orbiter Interface Verification Set |
In English |
→ Spaceflight engineering, astronautics |
| OLERD |
Orbiter Landing Emergency Rescue Data |
In English |
→ Spaceflight engineering, astronautics |
| OLF |
Orbiter Lifting Frame |
In English |
→ Spaceflight engineering, astronautics |
| OLIF |
ORbiter Landing Instrumentation Facility |
In English |
→ Spaceflight engineering, astronautics |
| OLOW |
Orbiter Lift-Off Weight |
In English |
→ Spaceflight engineering, astronautics |
| OLSP |
Orbiter Logistics Support Plan |
In English |
→ Spaceflight engineering, astronautics |
| OMA |
Orbiter Maintenance Area |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMBUU |
Orbiter Midbody Umbilical Unit |
In English |
→ Spaceflight engineering, astronautics |
| OMCF |
Orbiter Maintenance and Checkout Facility |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMDP |
Orbiter Maintenance Down Period |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OME |
Orbital Maneuvering Engine |
In English |
→ Spaceflight engineering, astronautics |
| OME |
Orbiter Main Engine |
In English |
→ Spaceflight engineering, astronautics |
| OMET |
Orbiter Mission Elapsed Time |
In English |
→ Spaceflight engineering, astronautics |
| OMEWG |
Orbiter Maintenance Engineering Working Group |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMK |
Orbiter Mission Kit |
In English |
→ Spaceflight engineering, astronautics |
| OML |
Orbiter Mold Line |
In English |
→ Spaceflight engineering, astronautics |
| OMMH |
Orbiter Maintenance Man-Hour |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMR |
Orbiter Management Review |
In English |
→ Spaceflight engineering, astronautics |
| OMRF |
Orbiter Modification and Refurbishment Facility |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMRF |
Orbiter Maintenance and Refurbishment Facility |
In English |
→ Maintenance and logistics
→ Spaceflight engineering, astronautics |
| OMS |
Orbital Maneuvering System |
In English |
→ Spaceflight engineering, astronautics |
| OMV |
Orbital Maneuvering Vehicle |
In English |
→ Spaceflight engineering, astronautics |
| ONBT |
Orbiter Neutral Buoyancy Trainer |
In English |
→ Spaceflight engineering, astronautics |
| ONERA |
Office National d'Études et de Recherches Aéronautiques |
In French |
→ Aeronautics, aircraft |
| ONERA |
Office National d'Études et de Recherches Aérospatiales |
In French |
→ Aeronautics, aircraft
→ Spaceflight engineering, astronautics |
| OOD |
Orbiter On Dock |
In English |
→ Spaceflight engineering, astronautics |
| OOH |
Orbital Operations Handbook |
In English |
→ Spaceflight engineering, astronautics |
| OOR |
On-Orbit Review |
In English |
→ Spaceflight engineering, astronautics |
| OOS |
On-Orbit Station |
In English |
→ Spaceflight engineering, astronautics |
| OOS |
Orbit-to-Orbit Shuttle |
In English |
→ Spaceflight engineering, astronautics |
| OOS |
Orbit-to-Orbit Stage |
In English |
→ Spaceflight engineering, astronautics |
| OOSD |
On-Orbit Support Document |
In English |
→ Spaceflight engineering, astronautics |
| OOSD |
Orbital Operations Support Document |
In English |
→ Spaceflight engineering, astronautics |
