Why the Falcon 9 Creates Three Sonic Booms

Scott Johnson with Spaceflight Insider got in touch with SpaceX about the signature sonic booms of Falcon 9:

“[The] first boom is from the aft end (engines),” said John Taylor, SpaceX’s Communications Director, “[The] second boom is from the landing legs at the widest point going up the side of the rocket. [The] third boom is from the fins near the forward end.”

The sound of progress.