SimilarityRank
NASA 0.717 9327
JPL 0.703 58179
NASA's 0.677 24421
Orbiter 0.635 76431
Observatory 0.626 22231
Mars 0.624 7385
orbiter 0.618 76092
rover 0.618 36853
spacecraft 0.613 16461
Phobos 0.605 91146
Chandra 0.601 34408
Mir 0.598 36762
SpaceX 0.595 73268
lander 0.593 64228
rovers 0.592 81638
observatory 0.590 34631
Space 0.588 4706
astronauts 0.588 24220
Hubble 0.588 35333
Astro 0.587 45072
Spacecraft 0.586 76108
Telescope 0.585 33291
SETI 0.582 58441
Astronauts 0.577 92629
Astronomy 0.575 30907