SimilarityRank
orbiter 0.850 76092
spacecraft 0.849 16461
asteroid 0.812 23057
comet 0.810 23908
Orbiter 0.797 76431
orbit 0.796 11481
orbiting 0.789 32947
lander 0.788 64228
liftoff 0.768 97090
ISON 0.765 79144
NASA's 0.752 24421
Cassini 0.745 49105
asteroids 0.741 33535
Phobos 0.736 91146
Asteroid 0.736 75474
Hubble 0.732 35333
meteor 0.727 29787
comets 0.725 39333
Saturn's 0.721 60708
moon's 0.721 59912
meteors 0.717 55518
Jupiter's 0.711 61517
ground-based 0.706 65588
telescope 0.705 15729
lunar 0.704 16529