SimilarityRank
spacecraft 0.774 12247
orbiter 0.772 92095
rover 0.725 31046
space_station 0.667 35861
asteroid 0.650 19862
comet 0.632 16244
the_International_Space_Station 0.625 61329
space_shuttle 0.619 81402
Mars 0.618 6486
payload 0.617 16321
astronaut 0.615 16889
thruster 0.611 87566
on_the_moon 0.604 35559
on_Mars 0.602 39049
the_moon 0.601 5760
orbit 0.600 8766
Curiosity 0.599 86989
a_comet 0.598 83115
satellite 0.593 4364
ground_station 0.591 86949
into_space 0.588 54334
lunar 0.586 49812
ISS 0.581 18099
spaceship 0.570 40441
Apollo_[number] 0.570 62486