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(Click for frequent words.) 66 supercold liquid oxygen 66 supercold propellants 65 gaseous hydrogen 63 propellant tanks 62 SSMEs 62 cryogenic liquid 61 hydrazine propellant 61 liquid propellants 61 hypergolic 60 liquid hydrogen 60 liquid oxygen 59 Solid Rocket Boosters 59 propellant 59 nitrogen tetroxide 59 exhaust plume 59 superhot gases 59 liquid propellant 59 supercold liquid hydrogen 59 monomethyl hydrazine 59 oxidiser 58 Foam insulation 58 Ares IX rocket 58 drogue parachute 58 oxygen propellants 58 payload fairing 58 Fregat upper stage 58 bipod fitting 58 liquid hydrogen LH2 57 Launch Pad #B 57 deorbit 57 propellant loading 57 Pad #B 57 gaseous hydrogen venting 57 countdown dress rehearsal 56 ECO sensors 56 External Tank 56 cryostat 56 Pirs module 56 spacecraft 56 atmospheric reentry 56 crawler transporter 56 solid propellants 56 pressurized module 56 Permanent Multipurpose Module PMM 56 interstage 56 Centaur upper 56 heatshield 56 hypergolic propellants 56 chemical hydride 55 GSLV D3 rocket 55 exoatmospheric kill vehicle 55 supercold fuel 55 gaseous hydrogen leak 55 Jules Verne ATV 55 Soyuz rocket 55 highly toxic heptyl 55 ammonia coolant tank 55 station Quest airlock 55 Soyuz launcher 55 Spacehab module 55 Pad #A 55 unpressurized cargo 55 orbiter 55 pad #A 55 Elektron oxygen generator 54 foam insulations 54 RSRMs 54 docking compartment 54 Progress #P 54 J 2X engine 54 blowdown drum 54 SpaceLoft XL 54 cryogenic propellant 54 cryogenic engine 54 MTSAT 1R 54 hypersonic speeds 54 gaseous nitrogen 54 Curiosity rover 54 coolant loops 54 MetOp satellite 54 liquid oxygen feedline 54 Foton spacecraft 54 viscous fluid 54 ion thrusters 54 S6 truss 54 gaseous helium 54 undocks 53 Japan Kibo laboratory 53 Shenzhou spacecraft 53 Taurus XL rocket 53 KSLV 1 53 shuttle Endeavor 53 ITCS Internal Thermal 53 malfunctioning toilet 53 ECO sensor 53 microgravity environment 53 GSLV Mk III 53 thruster firings 53 maneuvering thrusters 53 orbital insertion 53 Freon coolant 53 hydrazine fuel 53 argon gas 53 scramjet engines 53 orbital module 53 SRBs 53 orbiter robotic arm 53 space shuttle Discovery 53 shuttle aft compartment 53 oxidizer 53 propellants 53 Japanese Kibo laboratory 53 asparagine containing food 53 shuttle thermal tiles 53 rocket thrusters 53 PSLV rocket 53 rocket nozzle 53 Permanent Multipurpose Module 53 liquid coolant 52 MPLM 52 GUCP 52 booster rockets 52 Pirs docking compartment 52 drillship Discoverer Enterprise 52 scramjet engine 52 #bar [002] 52 electric ion propulsion 52 Sun synchronous orbit 52 Soyuz Fregat rocket 52 RPCM 52 flapper valve 52 airlock module 52 liquid helium 52 shuttle Discovery 52 cryogenic engines 52 toxic hydrazine 52 breathing scramjet engine 52 Zvezda module 52 hydrazine toxic 52 external stowage 52 BZh 52 IBEX spacecraft 52 AJ# engine 52 payload canister 52 orbital rendezvous 52 propellent 52 turbopumps 52 chemical reactants 52 vapor mist 52 stage Naro rocket 52 shielding tiles 52 Dragon capsule 52 Tranquility node 52 Minotaur rocket 52 Shuttle Atlantis docks 52 Orbiter Processing Facility OPF 52 finicky toilet 52 Solid Rocket Booster 52 scramjets 52 Atlas 2AS 52 Quest airlock 52 thruster 52 shuttle 52 GLAST spacecraft 52 Kibo JPM JEM Pressurized 52 aft skirt 52 Tranquility module 51 Pirs Docking Compartment 51 shuttle orbiter 51 xenon propellant 51 indigenous cryogenic stage 51 solid rocket boosters 51 prelaunch preparations 51 Russian Elektron oxygen 51 spacecraft checkout encapsulation 51 Dnepr rocket 51 Taurus XL 51 PSLV C# rocket 51 Searing gases 51 SSPTS 51 Foton M2 51 middeck 51 supersonic combustion 51 martian atmosphere 51 CryoSat satellite 51 Atlantis undocks 51 deorbiting 51 magnetic spectrometer 51 P#/P# truss 51 flammable hydrogen 51 bi propellant 51 Harmony Node 51 Multi Purpose Logistics Module 51 Zenit 3SL rocket 51 Orbital Maneuvering System 51 #/#-ton truss 51 foam insulation peeled 51 SCUD Single stage 51 sodium coolant 51 Shuttle Endeavor 51 tile filler 51 SBSS satellite 51 rocket nose cone 51 GOCE satellite 51 German dirigible Hindenburg 51 winged spacecraft 51 OMS pods 51 supercooled liquid 51 allowing superheated gases 51 charcoal canister 51 orbital laboratory 51 Endeavour STS 51 GSAT 5P 51 space shuttle 51 crewed spacecraft 51 Discovery undocking 51 Oefelein piloted 50 orbiter payload bay 50 urine recycler 50 NASA Ares IX 50 Discovery undocked 50 aboard Atlantis 50 hat containment dome 50 Martian orbit 50 landing superheated gases 50 Launch Abort System 50 Shuttle docks 50 windshield washer reservoir 50 O OREOS 50 Giove B 50 Insulating foam 50 Pegasus XL 50 Soyuz spacecraft docked 50 Elektron oxygen generation 50 Quest Airlock 50 storable propellants 50 Ares IX 50 Hubble gyroscopes 50 cosmonaut Alexander Kaleri 50 LH2 50 broken gyroscope 50 mothership WhiteKnightTwo 50 LO2 50 rubber bladders 50 director Chuck Dovale 50 exotherm 50 scramjet 50 Roman Romanenko 50 MUOS satellite 50 H IIB 50 supersonic combustion ramjet 50 orbital maneuvering 50 Briz M booster 50 shepherding spacecraft 50 thrust oscillation 50 monopropellant 50 Oleg Kononenko 50 Orlan spacesuit 50 SpaceX Falcon 9 50 giant crawler transporter 50 Liquid nitrogen 50 Ulysses spacecraft 50 reactants 50 LISA Pathfinder 50 Liquid Oxygen 50 reboost 50 faulty gyroscope 50 aft compartment 50 ion thruster 50 Containment dome 50 liquid oxygen LOX 50 Sensing Satellite LCROSS 50 Russian Dnepr rocket 50 SpaceShip Two 50 Endeavour robotic arm 50 Crawler Transporter 50 tonne truss segment 50 starboard SARJ 50 resistant tiles 50 liftoff 50 Glonass satellites 50 orbiting complex 49 Merlin 1C 49 molten alloy 49 adventure Zamka 49 superheated gases surrounding 49 shuttle orbiters 49 propane burners 49 Soyuz FG 49 protruding strips 49 Leonardo Multi Purpose 49 ship thermal shielding 49 Foton M3 49 Kibo module 49 venerable Soyuz rocket 49 toxic hydrazine fuel 49 Kosmos 3M 49 hydraulic accumulator 49 LRO LCROSS 49 Orion spacecraft 49 cryogenically cooled 49 Cosmonauts Sergei Volkov 49 Dextre robot 49 PSLV C 49 Rockot launcher 49 foam shedding 49 simulate weightlessness 49 shuttle Atlantis 49 Yuri Lonchakov 49 Minotaur IV 49 thermos bottle 49 Systems NEX AIQ.H 49 International Space Station 49 exothermic reaction 49 RL# engine 49 lunar regolith 49 Cosmodrome 49 coolant pump 49 pressurized compartment 49 #/#-hour spacewalk [001] 49 Mars Pathfinder lander 49 Discovery thrusters 49 Salizhan Sharipov 49 Ariane 5G 49 radiators predicament 49 Shuttle Endeavour docks 49 supercold 49 unstowed 49 ICC VLD 49 Zvezda Service 49 DART spacecraft 49 coolant loop 49 exothermic 49 VASIMR 49 four spinning gyroscopes 49 commander Sergei Volkov 49 backwashing 49 Liquid helium 49 NASA Stardust spacecraft 49 bacterial fermentation 49 Opportunity rovers 49 Discovery undocks 49 spaceward 49 Orbiter Processing Facility 49 humidified air 49 deorbited 49 parahydrogen 49 Glonass navigation satellites 49 Tranquility Node 49 scientist Anthony Colaprete 49 coolant hoses 49 unplanned spacewalk 49 uncrewed 49 Altair lunar lander 49 Russian Alexander Kaleri 49 pusher propeller 49 Analyzer TEGA 49 Hubble Space telescope 49 Orlan suits 49 turbopump 49 Shuttle Discovery docks 49 magma chamber 49 ammonia coolant 49 Ariane rocket 49 solid propellant 49 Crewmate Tracy Caldwell 49 jagged ridge 49 Shuttle Discovery blasts 49 Stephanie Stilson NASA 49 lithium hydroxide 49 Elektron O2 generator 49 depressurizes 49 diverter valve 49 Hydraulic fluid 49 broken coolant pump 49 space shuttle Endeavour 49 payload 49 silver iodide particles 49 Geosynchronous Transfer Orbit GTO 49 bulk vitrification 49 PSLV C# 48 valve malfunctioned 48 shuttle payload bay 48 yellowish liquid 48 shuttle Endeavour 48 superconducting magnet 48 propulsion subsystem 48 Orbital Module 48 Helios 2B 48 microgravity experiments 48 SpaceX Dragon capsule 48 defueling 48 NASA MESSENGER spacecraft 48 Baikonur Kazakhstan 48 aeroshell 48 Soyuz TMA spacecraft 48 digester tanks 48 reusable spacecraft 48 sulphate particles 48 drogue chute 48 intertank 48 orbital velocity 48 LRO spacecraft 48 GOES O 48 German airship Hindenburg 48 lunar landers 48 shuttle Endeavour astronauts 48 shuttle Discovery STS 48 OMS pod 48 indigenous cryogenic engine 48 GSLV D3 48 flowrate 48 Orion Crew 48 Lockheed Martin Waterton Canyon 48 Globalstar satellites 48 combustor 48 compressed hydrogen 48 Alexander Samokutyayev 48 INSAT 3D 48 Churyumov Gerasimenko 48 spacecraft thrusters 48 CAPE CANAVERAL Shuttle Discovery 48 Kazakhstan Baikonur cosmodrome 48 Kibo robotic arm 48 STSS Demo 48 sump pit 48 Fregat 48 deorbit burn 48 Merlin 1C engines 48 twin rover Opportunity 48 Launch Pad #A 48 magnetostrictive linear position 48 Ares IY 48 nanobubbles 48 UF6 gas 48 Geeky tweeters 48 THEMIS satellites 48 Discovery STS 48 MESSENGER spacecraft 48 spacewalking repairs 48 #/#-ton addition 48 thermally activated 48 Soyuz landings 48 Yinghuo 1 48 Russian cosmonaut Salizhan Sharipov 48 Crew Launch Vehicle 48 Discovery thermal shielding 48 Rockot 48 Michoud La. 48 injectivity test 48 Planck spacecraft 48 heaviest payloads 48 Atlantis payload bay 48 xenon ions 48 Shuttle Endeavour undocks 48 WISE telescope 48 repressurization 48 defective gyroscope 48 vacuum distillation 48 feedline 48 Cygnus spacecraft 48 pressurizer 48 humanoid robot R2 48 Astronauts inspect 48 cryogenic temperatures 48 Nasa spacecraft 48 magnetic dynamo 48 manned Soyuz 48 astronauts Robert Curbeam 48 Frick radioed 48 cryogenic cooling 48 engineer Oleg Kononenko 48 Soyuz craft 48 rocket boosters 48 evaporator coil 48 Centaur rocket 48 GIOVE B 48 Naro Space Centre 48 Shuttle undocks 48 bipropellant 48 filter feeders sucking 48 deionized 48 External Stowage Platform 48 Space Shuttle Atlantis 48 injector nozzles 48 breathing supersonic combustion 48 Leonardo Permanent Multipurpose 48 Logistics Module 48 ballistic trajectory 48 bipod ramp 48 Flight Readiness 48 Molniya M 48 Cryosat 48 sparging 48 LCROSS mission 48 composite payload fairing 48 Commander Dmitry Kondratyev 48 gaseous oxygen 48 spinning gyroscopes 48 Gasoline vapors 48 windshield wiper maneuver 48 ion propulsion 48 coastal Naro 48 hydrazine 48 water vapor condenses 48 Daniel Tani hooked 48 Eyharts 48 parabolic arcs 48 aeration basin 48 microscopic bubbles 48 purifies urine 48 NFIRE 48 protruding thermal 47 GSLV rocket 47 TDRS K 47 spaceplane 47 MSG Microgravity Science Glovebox 47 MPCV 47 Launch Scrubbed 47 TCDT 47 spy satellites malfunctioned 47 Vehicle ATV 47 robotic Canadarm 47 Spacewalks 47 ELCs 47 Breeze KM 47 liquefied hydrogen 47 Shuttle Discovery astronauts 47 Martian rovers 47 astronaut helper 47 Pirs Docking Compartment airlock 47 Endeavour 47 planetary Transits 47 hypersonic jet 47 shuttlecock shaped capsule 47 centrifuging 47 Space Launch Vehicle 47 GAG machine 47 Astrium Eurostar 47 moisture condenses 47 KAGUYA 47 Stardust capsule 47 pressurized canister 47 superheated gases 47 suborbital trajectory 47 Soyuz #S 47 spacecrafts 47 Russian Soyuz Fregat 47 superheated atmospheric gases 47 space shuttle Atlantis 47 Propellant 47 DMSP F# 47 Pirs airlock 47 chromatographic separations 47 NM spaceport 47 aboard Soyuz spacecraft 47 Skynet 5C 47 washwater 47 permanently shadowed lunar 47 Baikonour Cosmodrome 47 shuttle Endeavour STS 47 orbiting ISS 47 porous membranes 47 Plate GUCP 47 Manned Maneuvering Unit 47 aeration basins 47 dummy payload 47 particle physics experiment 47 ultrasonic humidifiers 47 Exploration Vehicle 47 Orbital Sciences Taurus 47 Shuttle Endeavour blasts 47 suborbital spacecraft 47 Atlantis Undocks From 47 toxic ammonia coolant 47 harmless nitrogen 47 lbf thrust 47 parafoil 47 Spinal fluid 47 popcorning 47 triangular Mylar sails 47 acre waterscape 47 flowable 47 pneumatic cylinder 47 ammonium perchlorate 47 nanocell 47 spokesman Michael Braukus 47 Russian cosmonauts Sergei Volkov 47 capillary tube 47 de ionised 47 drives ammonia coolant 47 lime slurry 47 gel electrolyte 47 BUSHEHR Iran Iranian 47 viscous liquids 47 DC1 Docking Compartment 47 Fermi gamma ray 47 Rain overcast sky 47 ullage 47 J 2X 47 PSLV C9 47 Ares I. 47 Stardust mothership 47 erupting Kilauea volcano 47 ISS robotic arm 47 PSLV C6 47 flammable hydrocarbons 47 Skripochka 47 geo synchronous 47 INSAT 4CR 47 ARCTUS 47 Spacewalking astronauts plug 47 booster rocket 47 Orbiter LRO 47 Shuttle Endeavour 47 Thermal Protection 47 engineer Garrett Reisman 47 ST5 47 President Gwynne Shotwell 47 Soyuz FG booster 47 P5 truss 47 Foton M3 spacecraft 47 shuttle thrusters 47 cement slurry 47 Russian cosmonaut Alexander Kaleri 47 aboard Endeavour 47 unpressurized 47 Poisk module 47 preset orbit 47 CarboGran 47 bottomhole pressure 47 Soyuz capsules 47 spacemen Timothy Kopra 47 particle detector 47 GE CF6 engines 47 Endeavour thermal shielding 47 sulphate aerosols 47 Tanking Test 47 ROCSAT 2 47 planet magnetosphere 47 Mike Leinbach 47 highly flammable soundproofing 47 sonofusion 47 corrosive seawater 47 vit plant 47 KSLV 47 THEMIS probes 47 cryogen 47 Orion capsule 47 entire Milstar constellation 47 NuSTAR 47 radiator coolant 47 interplanetary spacecraft 47 lunar orbiter Chandrayaan 47 humanoid robot bound 47 unbaked pie shell 47 Ionic liquids 47 rotary kiln 47 commander Alexander Skvortsov 47 Cosmonaut Valery Tokarev 47 VIIRS 47 Dual Payload Attach Fitting 46 Atlas Centaur 46 SpaceLoft XL rocket 46 Shuttle Atlantis blasts 46 dexterous robot 46 Mars Opportunity rover 46 Big Bang collider 46 ASTRA 3B 46 magneto rheological fluid 46 spacewalking astronauts rewiring 46 feedwater 46 NASA Spirit rover 46 sunshield 46 GOCE 46 inerting 46 astronauts 46 arduous spacewalks 46 limestone slurry 46 Soyuz Fregat 46 intertank region 46 Briz M 46 Titan 4B 46 particle physics detector 46 gelatin mixture 46 lighter seawater 46 shuttle underbelly 46 External Tanks 46 spaceship 46 astronaut Rick Sturckow 46 Tankless heaters 46 laser diode arrays 46 orbit 46 Laboratory MSL 46 pressurized oxygen 46 fractional distillation 46 parachutes malfunctioned 46 aerobraking 46 Space Shuttle STS 46 hydrocarbon vapor 46 solvent evaporation 46 Space shuttle Discovery 46 heavier payloads 46 shock absorber fluid 46 Galileo spacecraft 46 MSL rover 46 Soyuz docked 46 pad #a 46 inert nitrogen 46 ECLSS 46 shuttle airlock 46 Biomedical Problems 46 comet flyby 46 silicone adhesive 46 Progress resupply 46 LCROSS spacecraft 46 Early Ammonia Servicer 46 Harmony module 46 exhaust gasses 46 BOP blowout preventer 46 station Pirs docking 46 accretion disks 46 autosampler 46 GRACE satellites 46 Soyuz spacecraft 46 Heidemarie M. 46 scramjet propulsion 46 Soyuz booster 46 hypersonic scramjet 46 WISE spacecraft 46 hydrostatically 46 SpaceLoft 46 starboard truss 46 recycles urine 46 vernier engines 46 #m# h 46 rhythmic contractions 46 Ron Garan 46 rubber flapper 46 arid Kazakh steppe 46 George Zamka 46 Endeavour undocking 46 spacecraft SpaceShipTwo 46 Geosynchronous Satellite Launch Vehicle 46 Discovery thermal tiles 46 ablator 46 Reheat gently 46 foam 46 orange spacesuits 46 ramjets 46 changeout 46 Assembly Building VAB 46 indigenously developed cryogenic 46 SpaceX Falcon 46 Laboratory Freezer 46 payload bay doors 46 heatproof glass 46 MELFI 46 liquid electrolyte 46 Baikonur launch 46 titanium brackets 46 copper impactor 46 Pressurization 46 Russia Baikonur cosmodrome 46 laminar airflow 46 Kerosene heaters 46 Jupiter Icy Moons 46 Orbiter 46 ultrasonic vibration 46 ISC Kosmotras 46 microchannels 46 engineer Oleg Kotov 46 spacesuit 46 orbiter Atlantis 46 SLC 3E 46 windscreen washer 46 #C #F [003] 46 SOLO TREC 46 fried circuit breaker 46 helium leak 46 vapor condenses 46 VASIMR engine 46 decommissioned Peacekeeper 46 compressed gaseous hydrogen 46 Kepler spacecraft 46 airborne observatory 46 combustion chambers 46 NASA 46 Yury Lonchakov 46 Kaleri 46 Multi Purpose Logistics 46 Sulfur compounds 46 busted blowout preventer 46 Russian Orlan spacesuits 46 LEOP 46 HydroCell ™ 46 Chang'eI 46 Russian crewmate Yuri 46 potassium hydroxide 46 sodium alanate 46 lander rover 46 Kounotori vehicle 46 Terminal Countdown Demonstration 46 ESA Huygens probe 46 ammonia borane 46 lunar spacecraft 46 Space shuttle undocks 46 Dragon spacecraft 46 earth orbiting satellites 46 ramjet 46 Eta Aquarid meteor shower 46 liquid 46 Russian Salizhan Sharipov 46 Septic tanks 46 LCROSS 46 indigenous cryogenic 46 ton truss 46 graphite oxide 46 MELFI Minus Eighty 46 Spaceway F1 46 chloride salts 46 orbital maneuvers 46 interstellar particles 46 GPS IIIA satellites 46 THEMIS spacecraft 46 Vandenberg AFB Calif. 46 Proton Breeze M 46 dewpoint temperature 46 micro meteorites 46 liquid xenon 46 Commander Oleg Kotov 46 antimatter particles 46 Hydraulic fracturing injects 46 Poisk 46 Shuttle Discovery undocks 46 Rinse thoroughly 46 shuttle underside 45 orbiters 45 Dawn dishwashing soap 45 puttylike 45 Soyuz FG carrier 45 silica tiles 45 flame retardant foam 45 nontoxic antifreeze 45 Stardust spacecraft 45 NASA Gamma ray 45 turbine rotors 45 liquid nitrogen fertilizer 45 recirculation pump 45 Russian crewmate Salizhan 45 strenuous spacewalks 45 kg payload 45 superhydrophobic surface 45 clearwell 45 unscented bleach 45 CDR SO 45 #/#-minute climb 45 supersonically 45 payloads 45 compressed nitrogen 45 Pilot George Zamka 45 gumdrop shaped capsule 45 Discovery liftoff 45 Robert Satcher 45 midcourse phase 45 liquid argon 45 liquid electrolytes 45 condenser coil 45 Soyuz capsule 45 rocket booster 45 chief Vladimir Solovyov 45 H IIA 45 sparks ignited flammable 45 No.3 reactor 45 Beacon flywheels 45 stratospheric airship 45 dehumidified air 45 drip emitters 45 spacesuit malfunction forced 45 reentry capsule 45 Canadarm2 robotic arm 45 experimental humanoid robot 45 Orbiter Boom Sensor 45 AC# machines 45 Orion Ares 45 superheated steam 45 Shuttle Docks 45 turbo compressor 45 simulated weightlessness 45 pipette tip 45 geostationary transfer 45 Refrigerate overnight 45 Starsem 45 Stir gently 45 spherical nanoparticles 45 tubular skylight 45 cryogenic 45 Space Shuttle 45 vaporisation 45 Wallops Island Va. 45 Astrotech payload processing 45 angioplasty balloon 45 spacecraft orbited 45 radial stacker 45 Daniel Tani floated 45 airglow 45 orbiting shuttle 45 Soyuz 45 Ariane 5 45 STOVL propulsion system 45 HTV2 45 Lyndin 45 Flowing tubing pressure 45 NFIRE satellite 45 Russian Zvezda module 45 twin fuselages 45 fission reaction 45 sanded grout 45 rover Spirit 45 carboy 45 geo synchronous orbit 45 diamond anvils 45 switchbox 45 pickling liquid 45 seven windowed cupola 45 orbital outpost 45 CDRA 45 metallic flakes 45 Shenzhou capsules 45 reflow profiles 45 impeller blades 45 Noguchi greeting 45 hydrazine tank 45 orbiting spacecraft 45 aloe gel 45 Optus D3 45 mechanical deformations 45 overheating fuel rods 45 stowage platform 45 asphaltenes 45 Atlantis STS 45 Heavy Launch Vehicle 45 engineer Sandra Magnus 45 airlock 45 Hydratus 45 Cabeus crater 45 SSME 45 blowdown stack 45 spokesman Paul Foerman 45 Launch Complex 45 ammonia crystals 45 Naro rocket 45 Colloidal Emulsions 45 LCROSS Centaur upper 45 shuttle Discovery blasted 45 Cloud Aerosol Lidar 45 PRCB 45 orbiting lab 45 NEOSSat 45 insertion tube 45 PRCB Program 45 reactor coolant 45 CAPE CANAVERAL Fla 45 unpiloted 45 EPOXI mission 45 unscented household bleach 45 ammonia tank 45 interstellar dust samples 45 Shuttle Discovery 45 B5 biodiesel blend 45 liquid droplets 45 NASA Orbiting Carbon 45 flyaround 45 geomagnetic substorms 45 SBIRS GEO 45 cryogenic liquids 45 nosecap 45 electron accelerators 45 Exhaust gases 45 glass beaker 45 Kosmos 3M rocket 45 Orion spaceship 45 Harmony compartment 45 fragile thermal tiles 45 lunar module Eagle 45 oxygen ions 45 Kwajalein Island 45 astronauts Scott Parazynski 45 hydrazine hazardous 45 Scramjet 45 Titan IVB 45 proton particles 45 rigid polyurethane 45 weather satellite TIROS 45 Pad Abort 1 45 Absorbent pads 45 AEHF satellite 45 radioisotope thermoelectric generator 45 spacecraft Chandrayaan 1