SimilarityRank
neutrino 0.949 70890
photons 0.884 31946
neutrons 0.868 44331
quasars 0.856 93060
protons 0.850 41243
antimatter 0.845 64679
neutron 0.843 35660
photon 0.829 33504
electrons 0.826 17880
supernovae 0.824 82066
subatomic 0.823 64342
redshift 0.823 88264
quarks 0.822 65913
gravitational 0.821 22967
boson 0.820 78382
galaxies 0.815 19979
comets 0.815 39333
atoms 0.811 14412
deuterium 0.807 86208
supernova 0.794 46579
electron 0.784 16811
ionosphere 0.783 85878
exoplanets 0.777 89365
asteroids 0.776 33535
orbits 0.769 29511