That picture has been around a long time and has come under a bit of scrutiny by a bunch of professionals.
It seems most improbable that all could have been in the same place at the same time, and, for me I doubt the authenticity of it. Having said that, none, that I know of, from my limited research of it, has ever found a flaw in the picture. That is, a flaw that would obviously have signs of being a constructed picture or a changed picture.
It is interesting.
Blessings
