Related by context. Frequent words. (Click for all words.) 54 X PRIZE 47 Ansari X 46 X Prize 45 Centennial Challenges 39 Armadillo Aerospace 39 Space Elevator 38 Peter Diamandis 38 Saucer 38 Zayed Future 38 Intercontinental Le Mans 37 X PRIZE Foundation 37 FIRST Lego League 37 Maxi Yacht Rolex 37 DARPA Urban 37 SpaceDev 37 Winners 36 Reese Peanut Butter 36 winners 36 FIRST LEGO League 36 RoboCup 36 Scaled Composites 36 Rocketry 35 Diamandis 35 sub orbital 34 Lunar X PRIZE 34 Intel ISEF 34 Rutan 34 SpaceX Falcon 9 34 Challenger 34 Virgin Galactic 34 AUVSI 34 SpaceShipOne 34 Masten Space Systems 34 Burt Rutan 33 Kavli 33 Winner 33 winner 33 Robotics Competition 33 Sally Ride 33 DARPA Grand 33 manned spacecraft 33 Winning 32 suborbital flights 32 Sputnik satellite 32 Bigelow Aerospace 32 ISEF 32 Li ion Motors 32 winning 32 lunar rover 32 suborbital space 32 Formula SAE 32 Mike Melvill 32 Regional Spaceport 31 XCOR Aerospace 31 MathMovesU 31 Elon Musk 31 FIRST Robotics 31 rocketeers 31 Spaceship 31 founder Elon Musk 30 spaceports 30 DARPA 30 Nehru 30 Canstruction 30 Skoal Showdown 30 Dave Villwock 30 XCOR 30 Rocket 29 suborbital flight 29 winnning 29 designer Burt Rutan 29 Winners Announced 29 Automotive X PRIZE 29 soapbox derby 29 Yuri Night 29 Blue Riband 29 spacecrafts 29 unpiloted 29 SpaceX 29 CEV 29 Royalty Income 29 trophy 29 manned spaceship 29 EcoCAR 29 suborbital 29 scramjet 29 lunar lander 29 rocketry 29 spaceplane 29 Shenzhou VII 29 spaceship 29 Commercial Orbital 29 Tin 28 Edison2 28 Rocketplane 28 Victory 28 Dean Kamen 28 NASA Ames 28 Space 28 Endeavour 28 Tom Archdeacon