How would it not prove anything? They're going past the 32 miles according to the FAQ that states the sun, stars, whatever, are only 32 miles above the surface.
It proves plenty.
I just joined, someone linked me to this, and it's so entertaining to read all of this. Mind you, there's always going to be people out there doubting something, but there's so many factual, well documented, REAL stuff that proves the earth isn't flat.
I just enjoy the useless responses that I see all over the place here that give no real explanation or answer to most questions, just "no" or "you're wrong" or "it's part of the conspiracy"