| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | alien life | NASA | Ongoing research and missions to explore the potential for microbial life on other planets or moons within our solar system. | 1 |
| 2 | extraterrestrial life | NASA researchers | Conducting vigorous research and exploration to discover evidence of extraterrestrial life through telescopes, space probes, and analysis of meteorites | 1 |
| 3 | extraterrestrial life | NASA scientists | The subject of extensive scientific research and speculation | 1 |