| Similarity | Rank | |
|---|---|---|
| quasar | 0.752 | 61018 |
| supernova | 0.736 | 47013 |
| asteroid | 0.734 | 19862 |
| our_solar_system | 0.726 | 82880 |
| comet | 0.725 | 16244 |
| nebula | 0.713 | 48385 |
| galaxy | 0.698 | 7128 |
| NGC_[number] | 0.697 | 64522 |
| the_solar_system | 0.693 | 21341 |
| dark_matter | 0.683 | 32284 |
| Hubble | 0.678 | 49607 |
| the_Solar_System | 0.674 | 94718 |
| astronomer | 0.674 | 20224 |
| pulsar | 0.673 | 56249 |
| planet | 0.671 | 3914 |
| astrophysics | 0.664 | 46058 |
| the_Milky_Way | 0.658 | 65157 |
| cosmic_ray | 0.646 | 60042 |
| other_planet | 0.640 | 72712 |
| neutrino | 0.631 | 41916 |
| the_solar_wind | 0.631 | 80824 |
| our_universe | 0.630 | 66180 |
| Kepler | 0.627 | 46093 |
| a_comet | 0.623 | 83115 |
| dark_energy | 0.622 | 55834 |