Humans can't possibly refute and explain away the position of all the absolute stupid shit that other humans spew out of their mouths like unadulterated garbage.
the problem seems to be..
we can't seem to fix stupid.
or it's just too profitable of a system to let die.
Good luck explaining infinite atmosphere would mean infinite gravity and we'd be crushed into a black hole.
But yeah, sure. Earth is the flat object in the observable universe and NASA totally has the power and budget to make possible test you can do to prove otherwise wrong.