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(Click for frequent words.) 67 thrusters 64 Thruster 62 SSMEs 62 rocket thrusters 61 spacecraft 61 ion thrusters 61 propulsion 60 ion propulsion 60 Fregat upper stage 60 ion thruster 59 thrust vector 59 thruster firings 58 reboost 58 turbopump 58 deorbit 58 turbopumps 58 propellant loading 58 CMGs 58 propellant 58 electric ion propulsion 57 SSPTS 57 bi propellant 57 maneuvering thrusters 57 SARJ 57 nitrogen tetroxide 57 Launch Abort System 57 drogue parachute 57 orbital maneuvering 57 Thrusters 57 scramjet engine 56 ramjet 56 ECO sensor 56 DART spacecraft 56 Pegasus XL 56 DC1 Docking Compartment 56 hypergolic 56 Jules Verne ATV 56 coolant loop 56 starboard SARJ 56 retrorockets 55 GUCP 55 orbiter 55 orbital insertion 55 Orbital Maneuvering System 55 Minotaur rocket 55 Spacehab module 55 gaseous nitrogen 55 Merlin 1C 55 Solid Rocket Booster 55 Propulsion System 55 actuator 55 propellant tanks 55 bipropellant 54 SSRMS 54 nozzle 54 Elektron O2 generator 54 payload fairing 54 unstowed 54 RPCM 54 hydraulic pump 54 hydrazine thrusters 54 cryogenic cooling 54 Fregat 54 RSRMs 54 repressurization 54 MPLM 54 liquid propellant 53 deorbiting 53 ECO sensors 53 spaceplane 53 Solid Rocket Boosters 53 APXS 53 aeroshell 53 Progress #P 53 orbital velocity 53 orbit insertion 53 aft skirt 53 cryogenic engine 53 parafoil 53 shuttle thrusters 53 TORU 53 VASIMR 53 Orbiter 53 combustor 53 hypersonic speeds 53 aerobraking 53 SPHERES 53 gyroscopes 53 KSLV 1 53 OBSS 53 Elektron oxygen generator 53 supersonic combustion 53 retrorocket 53 Pirs module 52 IBEX spacecraft 52 SSME 52 Soyuz Fregat rocket 52 heatshield 52 shuttle orbiter 52 orbiting telescope 52 drogue 52 NuSTAR 52 ablator 52 Soyuz #S 52 Orbital Express 52 hypervelocity 52 ballistic trajectory 52 Atlas Centaur 52 inlet valve 52 starboard truss 52 RS #A 52 J 2X 52 scramjet 52 P#/P# truss 52 cryostat 52 Elektron oxygen generation 52 CDRA 52 Ares IX rocket 52 Variable Specific 52 STIS 52 cryogenic propellants 52 gimbaled 52 GPS IIF 52 ramjet engine 52 SpaceLoft XL 52 Zenit 3SL 52 Zvezda module 52 Briz M 52 fairing separation 52 SDACS 52 Taurus XL 52 Kibo JPM JEM Pressurized 52 atmospheric reentry 51 gaseous hydrogen leak 51 Skripochka 51 CryoSat satellite 51 Atlas 2AS 51 cryocooler 51 kinetic warhead 51 borescope inspections 51 PSLV C# 51 Russian Elektron oxygen 51 CALIPSO 51 ST5 51 nanosatellite 51 gaseous hydrogen 51 EKV 51 ISS reboost 51 PkhO 51 MSG Microgravity Science Glovebox 51 Control Moment Gyroscope 51 orbital altitude 51 Atlantis robotic arm 51 ICC VLD 51 inertial guidance 51 hydraulic ram 51 SPDM 51 steering thrusters 51 scramjets 51 coolant loops 51 External Tank 51 scramjet engines 51 Pirs docking compartment 51 Curiosity rover 51 rotor 51 particle beam 51 pressurization 51 diverter valve 51 Zenit 3SL rocket 51 GOCE 51 J 2X engine 51 Giove B 51 Mars Reconnaissance Orbiter MRO 51 thrust oscillation 51 GSLV D3 51 #bar [002] 51 geosynchronous 51 FASTSAT 51 planetary Transits 51 uncrewed 51 Orbital Module 51 rocket nozzle 50 propellants 50 deorbit burn 50 Kaleri 50 VIIRS 50 unpressurized cargo 50 Extra Vehicular Activity 50 storable propellants 50 RL# engine 50 safing 50 Impactor 50 orbital maneuvers 50 WISE spacecraft 50 dexterous robot 50 uncommanded 50 liquid hydrogen 50 piston rod 50 indigenous cryogenic engine 50 CDR SO 50 GSLV D3 rocket 50 hydraulic actuator 50 autothrottle 50 pitot probe 50 monomethyl hydrazine 50 unpowered 50 Cryosat 50 Pirs Docking Compartment 50 #kt #km h 50 suborbital trajectory 50 lbf thrust 50 orbital 50 JIMO 50 ADM Aeolus 50 martian atmosphere 50 liquid hydrogen LH2 50 pressurisation 50 AJ# engine 50 reversers 50 Kibo robotic arm 50 DMSP F# 50 NextSat 50 rocket nose cone 50 Vega launcher 50 Solid Liquid Mixtures 50 sensor 50 ATV Johannes Kepler 50 PSLV rocket 50 payload 50 SSRMS Space Station 50 Crew Launch Vehicle 50 Orion Crew 50 External Stowage Platform 50 MetOp 50 Churyumov Gerasimenko 50 lander 50 torque limiter 50 particle detector 50 MetOp satellite 50 BITS2 50 TDRSS 50 supersonic combustion ramjet 50 Helios 2B 50 Ares IX 49 GSLV rocket 49 Thermal Protection 49 shuttle aft compartment 49 ISS robotic arm 49 Jupiter Icy Moons 49 Pad #B 49 GSLV Mk III 49 orbiter payload bay 49 monopropellant 49 Atlantis payload bay 49 recirculation pump 49 ECLSS 49 Discovery thrusters 49 liquid propellants 49 Mars orbiter 49 Electric Propulsion 49 Laser COIL 49 inertial navigation 49 Nasa spacecraft 49 X #A 49 SRBs 49 Ares IY 49 thruster rockets 49 vectored thrust 49 TsUP Moscow 49 solenoid valve 49 Centaur upper 49 THAAD interceptor 49 circularize 49 interstage 49 autonomous rendezvous 49 velocity vector 49 Ryschkewitsch 49 orbital rendezvous 49 GPS 2R 49 interplanetary spacecraft 49 Briz M booster 49 rocket booster 49 LRO LCROSS 49 cosmic ray 49 propellent 49 impactor spacecraft 49 highly elliptical orbit 49 SIRTF 49 reactor coolant pump 49 Hubble gyroscopes 49 airfoils 49 deflector 49 axis perpendicular 49 nozzles 49 EMALS 49 pressurizer 49 FGB nadir port 49 unpressurized 49 Max Launch Abort 49 Volna rocket 49 instrument calibrations 49 Kurs 49 SpaceLoft XL rocket 49 Pilot George Zamka 49 APKWS II 48 HTV2 48 photometer 48 NanoSail D 48 solenoid 48 OMS pod 48 Microgravity Science Glovebox 48 SBSS satellite 48 LO2 48 drogue chute 48 Space Telescope Imaging Spectrograph 48 fuel injector 48 cryogenic liquid 48 feedline 48 GIOVE B 48 orbital module 48 H IIA 48 NASA Orbiting Carbon 48 actuators 48 Vehicle ATV 48 helium leak 48 sun synchronous orbit 48 MRM1 48 interplanetary missions 48 radar altimeter 48 ammonia coolant tank 48 Plate GUCP 48 electrically actuated 48 changeout 48 Heterodyne Instrument 48 LEOP 48 hypersonic scramjet 48 hypersonic jet 48 pump impeller 48 Soyuz TMA-#/#S 48 hypergolic propellants 48 supersonically 48 simulate weightlessness 48 Ariane launchers 48 Discovery STS 48 solid propellants 48 Philae lander 48 hydraulic 48 bipod fitting 48 GSAT 5P 48 Exploration Vehicle 48 Kibo module 48 S1 truss 48 orbiter robotic arm 48 hydraulics 48 Orbiter Processing Facility OPF 48 LOCAD PTS 48 radioisotope thermoelectric generator 48 System OBSS 48 interferometers 48 electrohydraulic 48 hydraulic braking 48 Control Moment Gyroscopes 48 Relative Navigation 48 vaporisation 48 cryogenically cooled 48 aerofoil 48 pneumatic cylinders 48 LISA Pathfinder 48 Foton M2 48 ramjet propulsion 48 DC1 48 Hubble Space Telescope HST 48 spacesuits 48 Antenna LISA 48 Robotic Arm 48 Ariane launcher 48 commander Frederick Sturckow 48 Taurus XL rocket 48 Canadarm2 robotic arm 48 Breeze KM 48 RL#B 2 48 Ocean Salinity SMOS 48 thrust vectoring 48 linac 48 Systems NEX AIQ.H 48 aft compartment 48 hydrazine propellant 48 Hydratus 48 Remote Manipulator System 48 turbine rotors 48 Lunar Module 48 hypersonic glider 48 cryogenic temperatures 48 MARSIS radar 48 Space Shuttle Program 48 JWST 48 oxidizer 48 deorbited 48 LH2 48 Crawler Transporter 48 spacecraft Chandrayaan 1 48 feedwater 48 unplanned spacewalk 48 Helios Prototype 48 Foton spacecraft 48 xenon propellant 48 gamma ray observatory 48 Mössbauer spectrometer 48 resistant tiles 48 Infrared Pathfinder Satellite 48 Payload 48 clutch lever 48 SMOS 47 ionisation 47 CALIPSO satellites 47 compensator 47 orbiting observatory 47 3rd SOPS 47 CHIPSat 47 SpaceShip Two 47 Airlock 47 LTS# 47 gaseous helium 47 KAGUYA 47 spacewalkers 47 shielding tiles 47 astronauts Robert Curbeam 47 pressurized module 47 bow thruster 47 intake valve 47 Orbiting Carbon Observatory 47 ExoMars rover 47 orbit 47 tokamak 47 pintle 47 lunar orbit 47 equatorial orbit 47 scatterometer 47 MTSAT 1R 47 steam boiler 47 aerodynamic 47 interferometer 47 Dyna Soar 47 Glonass K 47 infrared imager 47 Wallops Island Va. 47 STSS satellites 47 Tropospheric Emission Spectrometer 47 cam lobe 47 microgravity environment 47 yaw damper 47 nosecone 47 overpressure 47 Liquid Apogee Motor 47 GOES O 47 Minotaur IV rocket 47 heat shield 47 inertial measurement unit 47 Soyuz landings 47 hourlong descent 47 combustors 47 superfluid helium 47 CDR Padalka 47 Binary Colloidal Alloy 47 venturi 47 contra rotating 47 Skynet 5C 47 IFM Inflight Maintenance 47 tail rotor blades 47 KURS 47 robotic arm 47 station Pirs docking 47 Launch Vehicle 47 sunshield 47 NFIRE 47 hydraulically actuated 47 Suraev 47 ramjets 47 robotic arm Canadarm2 47 electro hydraulic 47 valve actuator 47 EGR valve 47 shuttle Endeavor 47 microgravity experiments 47 Mossbauer spectrometer 47 PW#A 47 Mars Lander 47 SM4 47 Kliper 47 Soyuz FG 47 Vehicles Directorate 47 Permanent Multipurpose Module PMM 47 vibration isolators 47 pneumatic cylinder 47 liquid apogee 47 Webb Telescope 47 powerhead 47 Samokutyayev 47 propeller blade 47 Lyndin 47 Mars Odyssey spacecraft 47 external stowage 47 robotic Canadarm 47 lithium hydroxide canisters 47 pneumatic actuator 47 xenon ion 47 spacecraft thrusters 47 small aft thrusters 47 Elektron 47 station Quest airlock 47 rudder 47 switchbox 47 liquid helium 47 condenser 47 stabilizing gyroscopes 47 planet magnetosphere 47 Orion spacecraft 47 compressed nitrogen 47 Pad #A 47 Main Engine SSME 47 spacewalk 47 fuze 47 microswitch 47 Shepherding Spacecraft 47 Ulysses spacecraft 47 magnetic spectrometer 47 pneumatic actuators 47 gimbal 47 YES2 47 supercold liquid oxygen 47 NASAs 46 watermaker 46 Stardust NExT mission 46 Ares I. 46 numerical simulation 46 HCCI mode 46 Heidemarie M. 46 superheated gases surrounding 46 Bulava missile 46 heater thermostat 46 Laboratory MSL 46 Launch Pad #B 46 oxidiser 46 hydraulic actuators 46 Commander George Zamka 46 middeck 46 Mars Pathfinder lander 46 Soyuz launcher 46 shuttle Discovery STS 46 sideslip 46 Dextre robot 46 perilune 46 Martian orbit 46 gravitational slingshot 46 comet flyby 46 hydrazine fuel 46 exhaust plume 46 Vehicle CEV 46 Kosmos 3M 46 rotational torque 46 airfoil 46 Global Surveyor 46 Cloud Aerosol Lidar 46 SSETI Express 46 NASA Ares IX 46 S#/S# truss 46 Big Bang collider 46 TacSat 46 exhaust valve 46 superconducting magnet 46 Orion capsule 46 Scramjet 46 Mars lander 46 Japan Kibo laboratory 46 reverser 46 GSLV F# 46 circular orbit 46 infrared seeker 46 Satellites GOES 46 rotor shaft 46 Eurockot 46 Ariane 5 46 combustion chamber 46 vernier 46 dewar 46 airglow 46 Titan 4B 46 Undocking 46 JAXA 46 gyroscope 46 S#/S# [001] 46 Tanking Test 46 hydraulic accumulator 46 hydraulic piston 46 STPSat 46 radiosonde 46 O OREOS 46 cosmonaut Alexander Kaleri 46 payload bay doors 46 actuation 46 GPS IIR 46 transonic 46 liquid oxygen feedline 46 Orion CEV 46 Data Grapple Fixture 46 geo synchronous 46 shuttle Canadarm 46 parahydrogen 46 turbojets 46 Poisk 46 gearbox casing 46 idler arm 46 Bulava submarine launched 46 Ariane rocket 46 USOS 46 ESOC 46 spacecrafts 46 hydrazine 46 Altair lunar lander 46 Pressurization 46 afterburner 46 Solid Rocket 46 Rosetta orbiter 46 radome 46 rocket motors 46 lunar orbiter Chandrayaan 46 ailerons 46 magnetron 46 jackscrew 46 SumbandilaSat 46 solid propellant 46 rotary piston 46 orbiter lander 46 Flight Engineer Suni 46 SpaceX Falcon 46 NROL 46 THEMIS spacecraft 46 hydrodynamic 46 wiring loom 46 Cargo Launch Vehicle 46 inertial reference 46 Pirs airlock 46 hydraulically activated 46 impactor 46 Foton M3 46 airlock module 46 Orion Launch Abort 46 auxiliary hydraulics 46 J 2X rocket 46 cryocoolers 46 A#p laptop 46 MRM2 46 particle acceleration 46 Hyper X 46 Endeavour STS 46 solid rocket boosters 46 THAAD interceptors 46 Kazakhstan Baikonur Cosmodrome 46 magneto 46 PSLV C 46 alpha rotary 46 bipod ramp 46 magnetic bearings 46 maxon 46 PSLV C# rocket 46 robotic lander 46 inertially 46 furler 46 Skvortsov 46 Infrared Astronomy 46 ATV Jules Verne 46 P5 truss 46 extravehicular activities 46 compressor 46 pitot static 46 Discovery payload bay 46 DEPTHX 46 Chang'eI 46 Spacesuits 46 payload bay 46 SIRAL 46 intercooled turbocharger 46 unstowing 46 unpiloted 46 lunar explorer 46 Reusable Solid Rocket 46 commander Alexander Skvortsov 46 BepiColombo 46 piezo actuators 46 feedwater pump 46 RSRM 46 COROT 46 Kurs automated 46 pneumatic valve 46 Rockot launch 46 Stardust spacecraft 46 valve malfunctioned 46 rover 46 satellite Giove 46 #SP [002] 46 Reusable Launch Vehicle 46 exhaust muffler 46 Vozdukh 46 exoatmospheric kill vehicle 46 Engelauf 46 pilot George Zamka 46 toroid 46 dipole magnets 46 kg payload 46 Rockot 45 MESSENGER spacecraft 45 Space Propulsion 45 P6 4B 45 Freon coolant 45 particle separator 45 liquid coolant 45 Comet Churyumov Gerasimenko 45 GPS IIR M 45 Ares rocket 45 Descent Module 45 Hayabusa probe 45 protruding strips 45 overspeed 45 MUOS satellite 45 BZh 45 vernier engines 45 pyrotechnic bolt 45 GPS IIF satellites 45 Atlas V 45 airlock 45 Mars Surveyor 45 latching mechanism 45 foam fragment 45 geosynchronous satellite 45 Moessbauer 45 propulsion subsystem 45 Minotaur IV 45 valve 45 booster rocket 45 Herschel Planck 45 Kosmos 3M rocket 45 Insat 4B 45 LEAP X1C 45 Orbiter MRO 45 geo stationary orbit 45 pusher propeller 45 NFIRE satellite 45 electric propulsion 45 Radar Altimeter 45 SOHO spacecraft 45 SolarEagle 45 Martian rovers 45 Thermal Emission Spectrometer 45 copper impactor 45 TDRS K 45 superhot gases 45 Servicing Mission 45 C NOFS 45 Spacecraft Control 45 TVIS treadmill 45 Launch Commit Criteria 45 Molniya 45 Alpha Magnetic Spectrometer AMS 45 turbo compressor 45 Flowmeter 45 ducted fan 45 payload canister 45 airbrakes 45 cryogenic engines 45 NASA Gamma ray 45 aeroelastic 45 bilge pump 45 powerpack 45 sonde 45 lunar spacecraft Chandrayaan 45 indigenous cryogenic stage 45 STOVL mode 45 Mars Reconnaissance Orbiter 45 hydraulically operated 45 wastegate 45 midbody 45 geosynchronous orbit 45 orbiters 45 CDR Whitson 45 STSS 45 hypersonic flight 45 Quest airlock 45 camshaft 45 gamma ray spectrometer 45 HyShot 45 preheater 45 TPS Thermal 45 retroreflector 45 hydraulic valves 45 hydraulic rams 45 ARCTUS 45 Multi Purpose Logistics Module 45 comet chaser 45 STOVL propulsion system 45 turbo generator 45 NASA 45 Plesetsk Cosmodrome 45 sonobuoy 45 Space Shuttle Orbiter 45 Commander Rick Sturckow 45 GE CF6 engines 45 pulsed laser 45 orbital maneuvering system 45 Shenzhou spacecraft 45 ESA GOCE 45 Orlan MK 45 scramjet propulsion 45 HEO payload 45 Jupiter Icy Moons Orbiter 45 Atlas IIAS 45 Yarkovsky effect 45 orbital inclination 45 fluid viscosity 45 thermal gradients 45 electromagnets 45 regeneratively cooled 45 MARSIS 45 depressurised 45 indigenous cryogenic 45 Satellite Launch Vehicle 45 intertank 45 impeller 45 Pressurized Mating Adapter 45 thrust reverser 45 Soyuz 45 trundle bearing 45 capsule parachutes 45 RazakSAT satellite 45 airbox 45 Delfi C3 45 graphite epoxy 45 Earth orbiting satellites 45 bladed rotor 45 Nuclear Spectroscopic Telescope Array 45 Sun synchronous orbit 45 radiator 45 JPM JEM Pressurized Module 45 Rokot 45 PSLV C9 45 airspeed indicator 45 S6 truss segment 45 External Tanks 45 Observatory SDO 45 CCDev 45 gimbals 45 Flight Readiness 45 Early Ammonia Servicer 45 propeller shafts 45 GLAST spacecraft 45 GAG machine 45 MPCV 45 Gyroscopes 45 heat exchanger 45 Roman Romanenko 45 LCROSS spacecraft 45 servomotors 45 SIM PlanetQuest 45 helium purge 45 Automated Transfer Vehicle 45 flapless 45 Huygens Probe 45 TappingMode 45 composite payload fairing 45 Foam insulation 45 heavier payloads 45 cryogenic propellant 45 servomotor 45 CDR Volkov 45 Planck spacecraft 45 Oxidizer 45 galactic cosmic rays 45 Japanese Pressurized Module 45 AIM 9X 45 supercold 45 Tactical Tomahawk 45 Manned Maneuvering Unit 45 Solar Array 45 breathing scramjet engine 45 handwheel 45 Geo IK 45 Magnetic Imager HMI 45 turbofan engine 45 engineer Oleg Kotov 45 coolant leak 45 LSAM 45 astronauts Scott Parazynski 45 Satellite GOSAT 45 crewed spacecraft 45 volumetric efficiency 45 Huygens lander 45 Pirs Docking Compartment airlock 45 Ariane 5G 45 Trajectory Tracker 45 Extravehicular Activity 45 Russian Zvezda module 45 liftoff 45 Sineva 45 AEHF satellite 45 INSAT 4B 45 lunar spacecraft 45 Gravity Probe B 45 Galileo spacecraft 45 stiction 45 Space Shuttle 45 Launch Scrubbed 45 inertial measurement 45 spinning gyroscopes 45 generator stator 45 Pete Siebold 45 ignition coil 45 airflows 45 Merlin 1C engines 45 Proba 2 45 poppet valves 45 NCADE 45 centrifugal pump 45 Geosynchronous Transfer Orbit GTO 45 SRMS 45 backshell 45 SAWs 45 Shuttle Endeavor 45 Quest airlock module 44 orbiting gamma ray 44 pad #A 44 Inertial Navigation System 44 lunar lander 44 Electro hydraulic 44 Jupiter flyby 44 GLAST 44 Yuri Lonchakov 44 Rockot launcher 44 TEGA instrument 44 electro pneumatic 44 Jet Propulsion Laboratory JPL 44 Galileo satellites 44 parabolic antenna 44 turbo intercooler 44 Phobos Grunt 44 WK2 44 geo synchronous transfer 44 Solar Arrays 44 depressurize 44 Metop 44 thermoelectric cooling 44 Spacecraft Operations 44 radio occultation 44 radioisotope thermoelectric generators 44 adiabatic 44 PSLV C6 44 preset orbit 44 Commander Charlie Hobaugh 44 Globalstar satellites 44 rocket boosters 44 ammonia tank 44 coolant 44 Rotary Joint SARJ 44 INMS 44 pneumatic valves 44 gaseous oxygen 44 ultraviolet spectrograph 44 inlet valves 44 Orlan suits 44 GOES N 44 electromagnetic railgun 44 OMS pods 44 Harmony Node 44 tail rotor 44 throttle levers 44 Pad Abort 1 44 polar orbiting 44 Near Infrared Camera 44 P1 truss 44 SBIRS GEO 44 air cooled condenser 44 nosewheel 44 ionosphere 44 gravitational acceleration 44 liquid oxygen 44 Propulsion 44 EPOCh 44 Inertial Navigation 44 Venus Climate Orbiter 44 planetary missions 44 Cartosat 2B 44 Glonass M 44 exhaust gasses 44 Russian Orlan spacesuit 44 solenoid operated 44 HDAM 44 cam shaft 44 pumps ammonia coolant 44 coronagraph 44 superheat 44 robotic spacecraft