| Similarity | Rank | |
|---|---|---|
| astronomy | 0.623 | 10180 |
| astronomer | 0.567 | 20224 |
| planetary | 0.563 | 32522 |
| telescope | 0.550 | 9569 |
| celestial | 0.529 | 39686 |
| astrophysics | 0.523 | 46058 |
| cosmic | 0.521 | 22844 |
| lunar | 0.518 | 49812 |
| galactic | 0.515 | 60709 |
| cosmology | 0.514 | 24700 |
| Astronomy | 0.513 | 21432 |
| Kepler | 0.503 | 46093 |
| mathematical | 0.502 | 15619 |
| observatory | 0.495 | 17937 |
| solar_activity | 0.487 | 98984 |
| scientific | 0.486 | 2917 |
| Hubble | 0.480 | 49607 |
| the_solar_system | 0.479 | 21341 |
| astrology | 0.478 | 21451 |
| Herschel | 0.476 | 88675 |
| geological | 0.475 | 28476 |
| geophysical | 0.472 | 90583 |
| a_telescope | 0.468 | 53621 |
| moon | 0.465 | 11556 |
| comet | 0.465 | 16244 |