Related by context. Frequent words. (Click for all words.) 54 Crew Launch Vehicle 54 Minotaur IV 53 CH #K 53 Stratospheric Observatory 52 GPS IIF 52 JLENS 52 Technology Demonstrator 51 CH #K helicopter 51 Giove B 50 tiltrotor 50 Dragon spacecraft 50 IRCM 50 Operationally Responsive Space 50 preclinical efficacy 50 Stratellite 50 nanosatellite 50 Vehicles Directorate 49 Trofex 49 Neuradiab 49 Phase Ib II 49 MUOS 49 Orion spacecraft 49 Altair lunar lander 49 hypersonic flight 48 APKWS 48 biostatistical 48 Lunar Lander Challenge 48 RTSC 48 optical biosensors 48 TATRC 48 SpaceX Falcon 9 48 phase Ib 48 AFRL 48 AMF JTRS 48 Advanced EHF 48 phase IIa clinical 47 joint warfighting 47 Space Fence 47 GIOVE B 47 GA ASI 47 AV 8B 47 JAUS 47 MQ 8B Fire 47 ornithopter 47 vertical takeoff 47 GAGAN 47 opto mechanical 47 inertial guidance 47 UCAV 47 phase IIa 47 testbeds 47 Kaveri engine 47 Watchkeeper 46 SESAR 46 synthetic genomics 46 Unmanned Aerial Vehicle 46 J 2X 46 scramjet engine 46 PLK1 SNALP 46 UASs 46 unpiloted 46 P 8A 46 BrachySil 46 Orion capsule 46 Mission Directorate 46 Galileo satellites 46 SBRI 46 X #A 46 Trophos 46 reusable spacecraft 46 preclinical toxicology 46 ScanEagle 46 Edwards AFB 46 Versartis 46 NIH Roadmap 46 hypersonic speeds 46 ion propulsion 46 GOES O 46 Spacelab 46 SBIR Phase 45 Vehicle CEV 45 Ares I. 45 JASSM 45 Airborne Laser 45 Diamyd ® 45 Dream Chaser 45 EndoTAG TM -1 45 ARBS 45 SEPET TM 45 Geosynchronous Satellite Launch Vehicle 45 AFOSR 45 Polar orbiting Operational 45 microrobots 45 Successfully completing 45 manned lunar 45 JAGM 45 Dragon capsule 45 J 2X engine 45 NAVAIR 45 VTOL 45 Astrobotic