| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | lunar calendar | Scientific communities | The lunar calendar is not considered a reliable or accurate way to measure time and is mostly used for cultural or religious purposes | 1 |
| 2 | lunar phases | Scientific community | Lunar phases are studied to understand celestial mechanics and their impact on Earth's tides. | 1 |
| 3 | moon | Scientific culture | The moon is a natural satellite of the Earth. | 1 |
| 4 | moon | scientific context | The moon reflects light from the sun and has a gravitational effect on Earth's tides. | 1 |