| Similarity | Rank | |
|---|---|---|
| a_black_hole | 0.848 | 67425 |
| supernova | 0.709 | 47013 |
| quasar | 0.709 | 61018 |
| dark_matter | 0.707 | 32284 |
| galaxy | 0.692 | 7128 |
| dark_energy | 0.692 | 55834 |
| nebula | 0.685 | 48385 |
| the_Milky_Way | 0.649 | 65157 |
| neutrino | 0.647 | 41916 |
| our_universe | 0.633 | 66180 |
| pulsar | 0.633 | 56249 |
| our_solar_system | 0.619 | 82880 |
| NGC_[number] | 0.616 | 64522 |
| exoplanet | 0.612 | 88229 |
| comet | 0.609 | 16244 |
| spacetime | 0.604 | 96462 |
| the_solar_wind | 0.603 | 80824 |
| galactic | 0.599 | 60709 |
| string_theory | 0.593 | 85187 |
| the_Big_Bang | 0.593 | 46860 |
| the_universe | 0.586 | 5701 |
| asteroid | 0.586 | 19862 |
| astrophysics | 0.582 | 46058 |
| cosmic_ray | 0.580 | 60042 |
| the_solar_system | 0.579 | 21341 |