Birdwatch Note Rating
2023-11-27 06:36:53 UTC - HELPFUL
Rated by Participant: 15A94681DC12B2BF39CAECC114CC860FF9C57EE09ADAF292799A6871BAD4C94A
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Original Note:
Propulsion is normally required to keep altitude of heavier-than-air craft. However, once an object goes fast enough and reaches the so-called escape velocity this no longer holds. There are special trajectories (called orbits) that can keep objects "suspended" indefinitely https://simple.wikipedia.org/wiki/Escape_velocity https://education.nationalgeographic.org/resource/orbit/
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