Can Air planes fly through rainbows? I am wondering whether or not it is possible for an air plane to fly through a rainbow, and, if so, does anyone have any pictures or experiences of what you can see? 

I've always been intrigued by this.
A rainbow is created by refraction of sunlight so you have to be in the right position to see it. The effect is only created at some distance. A rainbow that you see from the ground may appear to be in a particular place in the sky. An airplane could fly through that space and it might appear to you that it is passing through it The occupants of the airplane, however, would not see a rainbow there.