You probably have heard the BOOM that happens when a jet plane hits Mach 1 and breaks the sound barrier. But, I didn’t know till just recently that there is often also a dramatic visual phenomenon that occurs as well.
The picture on the upper left shows one of the several visual appearances that happens. Wow. Amazing. Who would have thought.
Anyway. There was a recent article telling about this. To read the article HERE’S THE LINK
And to see 14 more pictures HERE’S THE LINK