SimilarityRank
NASA's 0.749 24421
flyby 0.745 80846
Orbiter 0.744 76431
asteroid 0.738 23057
Asteroid 0.737 75474
Hubble 0.730 35333
comet 0.729 23908
asteroids 0.720 33535
Telescope 0.715 33291
ISON 0.713 79144
spacecraft 0.713 16461
comets 0.708 39333
Jupiter's 0.707 61517
Kepler 0.699 41816
Saturn's 0.697 60708
Phobos 0.695 91146
NASA 0.695 9327
orbiter 0.692 76092
orbiting 0.690 32947
Galileo's 0.690 93239
Ganymede 0.686 96101
Galileo 0.686 29939
supernova 0.684 46579
Mars 0.683 7385
Mars' 0.681 89615