SimilarityRank
rover 0.864 36853
lander 0.761 64228
spacecraft 0.745 16461
orbiter 0.726 76092
spaceships 0.706 57887
Orbiter 0.701 76431
orbiting 0.698 32947
astronauts 0.697 24220
Mars 0.690 7385
telescopes 0.688 27127
NASA's 0.686 24421
unmanned 0.679 26624
asteroids 0.677 33535
NASA 0.673 9327
interplanetary 0.665 60971
Curiosity 0.664 34315
Telescope 0.660 33291
flyby 0.658 80846
ground-based 0.658 65588
Astronauts 0.658 92629
satellites 0.658 15579
exoplanets 0.654 89365
planets 0.651 9219
spaceship 0.651 31046
Spacecraft 0.650 76108