| Similarity | Rank | |
|---|---|---|
| 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 |