SimilarityRank
gamma_ray 0.774 77142
neutrino 0.761 41916
the_solar_wind 0.724 80824
neutron 0.693 24797
dark_matter 0.680 32284
supernova 0.680 47013
radiation_from 0.680 89043
photon 0.679 18937
magnetic_field 0.676 15604
quasar 0.674 61018
solar_activity 0.673 98984
dark_energy 0.656 55834
electron 0.654 9389
electromagnetic_wave 0.653 81340
our_atmosphere 0.647 72416
these_particle 0.647 95022
exoplanet 0.646 88229
solar_radiation 0.642 50199
radio_wave 0.642 55042
proton 0.640 20444
comet 0.630 16244
electromagnetic_radiation 0.630 65326
water_vapor 0.630 40856
sunspot 0.624 64517
astrophysics 0.617 46058