| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | asteroid | Europe | Asteroids were believed to be the projectiles thrown by the gods and were associated with various myths and legends. | 1 |
| 2 | asteroid | Europe | Asteroids are studied and monitored for potential impact on Earth. | 1 |
| 3 | asteroid | Europe | Astronomical interest and research in tracking and potentially mitigating asteroid impacts on Earth. | 1 |
| 4 | asteroids | Europe | Astronomical topic of interest due to potential impact on Earth and space exploration | 1 |
| 5 | de havilland comet | Europe | Revolutionized commercial aviation as the world's first jet airliner in the 1950s. | 1 |