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by caleb-allen 473 days ago
You are right, an object at supersonic speeds will create a sonic boom, but it can be mitigated by structuring the object in such a way that it shapes the sound wave(s) in such a way that they reduce the noise at ground level.

This is a great explainer from Scott Manley: https://www.youtube.com/watch?v=CM5lbIzH2kc