| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | zero gravity | United States | Zero gravity is experienced by astronauts in space during space missions. | 1 |
| 2 | zero gravity | United States | Training for zero gravity experiences is an essential part of astronaut preparation for space missions. | 1 |
| 3 | zero gravity | United States | Zero gravity flights, also known as parabolic flights, are conducted for scientific research and astronaut training. | 1 |
| 4 | zero gravity | United States | Zero gravity research and experiments are a significant focus of space agencies and scientific institutions. | 1 |
| 5 | zero gravity | United States | Experiencing zero gravity is considered an extraordinary and awe-inspiring event for astronauts during space missions. | 1 |