SimilarityRank
NASA 0.757 9327
NASA's 0.751 24421
unmanned 0.726 26624
Lockheed 0.726 27404
spacecraft 0.725 16461
Boeing 0.725 14335
Boeing's 0.713 67682
orbiter 0.711 76092
Propulsion 0.707 55488
Northrop 0.705 47355
spaceflight 0.705 67313
Orbiter 0.704 76431
Spacecraft 0.701 76108
lander 0.697 64228
JPL 0.695 58179
Bezos 0.691 59782
Grumman 0.680 45107
ISS 0.679 30619
flyby 0.676 80846
Musk 0.666 51615
Soyuz 0.665 53223
Sikorsky 0.665 76765
Raytheon 0.660 53464
Dreamliner 0.660 72826
rover 0.658 36853