| Similarity | Rank | |
|---|---|---|
| NASA | 0.717 | 9327 |
| JPL | 0.703 | 58179 |
| NASA's | 0.677 | 24421 |
| Orbiter | 0.635 | 76431 |
| Observatory | 0.626 | 22231 |
| Mars | 0.624 | 7385 |
| orbiter | 0.618 | 76092 |
| rover | 0.618 | 36853 |
| spacecraft | 0.613 | 16461 |
| Phobos | 0.605 | 91146 |
| Chandra | 0.601 | 34408 |
| Mir | 0.598 | 36762 |
| SpaceX | 0.595 | 73268 |
| lander | 0.593 | 64228 |
| rovers | 0.592 | 81638 |
| observatory | 0.590 | 34631 |
| Space | 0.588 | 4706 |
| astronauts | 0.588 | 24220 |
| Hubble | 0.588 | 35333 |
| Astro | 0.587 | 45072 |
| Spacecraft | 0.586 | 76108 |
| Telescope | 0.585 | 33291 |
| SETI | 0.582 | 58441 |
| Astronauts | 0.577 | 92629 |
| Astronomy | 0.575 | 30907 |