| Similarity | Rank | |
|---|---|---|
| Mars | 0.644 | 6486 |
| on_Mars | 0.612 | 39049 |
| rover | 0.603 | 31046 |
| lander | 0.599 | 74502 |
| orbiter | 0.594 | 92095 |
| the_Moon | 0.568 | 9806 |
| spacecraft | 0.560 | 12247 |
| curiosity | 0.556 | 7132 |
| Apollo_[number] | 0.544 | 62486 |
| Pluto | 0.544 | 18273 |
| the_International_Space_Station | 0.543 | 61329 |
| comet | 0.538 | 16244 |
| Martian | 0.530 | 36404 |
| Hubble | 0.524 | 49607 |
| Rosetta | 0.519 | 56006 |
| astronaut | 0.518 | 16889 |
| Venus | 0.517 | 10227 |
| NASA | 0.517 | 4997 |
| Rover | 0.511 | 57640 |
| Opportunity | 0.511 | 17528 |
| asteroid | 0.505 | 19862 |
| Endeavour | 0.503 | 76751 |
| JPL | 0.499 | 94014 |
| Earth | 0.498 | 3650 |
| a_comet | 0.496 | 83115 |