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Does SpaceX make a boom sound on re-entry and why?

Asked by JLeslie (65453points) 3 months ago from iPhone

Not long ago I heard a huge boom that sound like someone dropped something huge in my attic.

On facebook someone wrote asking about it, and one reply was it’s the SpaceX Falcon Dragon coming back into the atmosphere. We were watching on TV.

Is the boom from breaking through the atmosphere? Or, does the space craft pick up speed (breaking the sound barrier) after coming through to the earth’s atmosphere before slowing down again?

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