SimilarityRank
dark_matter 0.775 32284
neutron 0.771 24797
quark 0.767 60736
cosmic_ray 0.761 60042
photon 0.744 18937
gamma_ray 0.720 77142
proton 0.717 20444
electron 0.713 9389
supernova 0.706 47013
dark_energy 0.702 55834
Higgs 0.701 67350
quasar 0.695 61018
an_electron 0.692 98873
the_LHC 0.678 64297
atom 0.674 7438
spacetime 0.663 96462
particle_physic 0.657 87009
these_particle 0.649 95022
particle 0.649 4733
black_hole 0.647 19818
the_solar_wind 0.641 80824
pulsar 0.638 56249
quantum_theory 0.634 83208
quantum_mechanic 0.633 38195
hydrogen_atom 0.632 96670