Fly through an arch in orbit or while slingshotting

[hunter558]

So i\'ve been hearing some people claiming that they\'ve managed to go right through an arch on the Mun while orbiting it or slingshotting to either Minmus or Kerbin. I feel like this is possible but have yet to see any proof. If anyone can post a trustworthy group of screenshots or a video of accomplishing this i would be very impressed, as would much of the KSP community i\'m sure. I might try a futile attempt at this myself but im sure someone will manage to prove themselves before me.

[vexx32]

I think there\'s already a challenge here somewhere for this... and there\'re people with picture proof of having done it.