| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | exoplanets | Modern astronomy | Recognized as planets outside our solar system through scientific observations | 1 |
| 2 | exoplanets | astrophysicists | Planets that orbit stars outside our solar system, of great interest for the search for extraterrestrial life | 1 |
| 3 | planets | astronomy | Planets are studied scientifically for their physical properties, atmospheres, and potential for exoplanetary life. | 1 |
| 4 | pluto | astronomy community | Pluto is considered a dwarf planet, not a full planet, since its reclassification by the International Astronomical Union in 2006. | 1 |
| 5 | pluto | astronomy community | Considered a dwarf planet since 2006 | 1 |