SimilarityRank
quasar 0.752 61018
supernova 0.736 47013
asteroid 0.734 19862
our_solar_system 0.726 82880
comet 0.725 16244
nebula 0.713 48385
galaxy 0.698 7128
NGC_[number] 0.697 64522
the_solar_system 0.693 21341
dark_matter 0.683 32284
Hubble 0.678 49607
the_Solar_System 0.674 94718
astronomer 0.674 20224
pulsar 0.673 56249
planet 0.671 3914
astrophysics 0.664 46058
the_Milky_Way 0.658 65157
cosmic_ray 0.646 60042
other_planet 0.640 72712
neutrino 0.631 41916
the_solar_wind 0.631 80824
our_universe 0.630 66180
Kepler 0.627 46093
a_comet 0.623 83115
dark_energy 0.622 55834