| NOUN | phenomenon | gravity-assist | (spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field |
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| Meaning | (spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field. | |
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| Category | spaceflight, space travel, spacefaring | A voyage outside the Earth's atmosphere |
| Broader | trajectory, flight | The path followed by an object moving through space |
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