Even though that pic might be fake, its still funny, you got to admit it. I can't remember what this is called. but it can happen way below M1 but it looks like the sound barrier but its not, can someone name it for me, i think someone has already said it. I was at an a blue angels homecoming and they had a F-18 super hornet do fast fly by, it had a greenish glow around the leading edges of the wing, it was a night show when this happened, the annocers said that he was very close to M1, ( I would have loved it if he had broken the sound barrier in front of us, but he would have broken about every window there, but still would have been awsome