| Similarity | Rank | |
|---|---|---|
| NASA | 0.894 | 9327 |
| NASA's | 0.863 | 24421 |
| Propulsion | 0.770 | 55488 |
| Caltech | 0.766 | 53787 |
| Orbiter | 0.763 | 76431 |
| Spacecraft | 0.748 | 76108 |
| Hubble | 0.737 | 35333 |
| Astrophysics | 0.719 | 75101 |
| ISS | 0.716 | 30619 |
| Telescope | 0.712 | 33291 |
| Sandia | 0.705 | 61546 |
| Nasa | 0.703 | 87618 |
| Keck | 0.698 | 65283 |
| SpaceX | 0.695 | 73268 |
| Goddard | 0.695 | 35766 |
| spacecraft | 0.694 | 16461 |
| NOAA's | 0.693 | 90701 |
| NREL | 0.688 | 96585 |
| orbiter | 0.688 | 76092 |
| Astronomy | 0.683 | 30907 |
| ESO | 0.683 | 82637 |
| Cassini | 0.681 | 49105 |
| Battelle | 0.677 | 96767 |
| USGS | 0.677 | 38284 |
| SETI | 0.674 | 58441 |