Socks come in pairs.

I'm always curious where these nutty ideas about NASA come from. With the thousands of NASA employees and contractors there is no way someone would get away with faking the data for any length of time. Too many within the organizations would call them out on it, there is no secret conspiracy all NASA people adhere to, that's just complete tin foil hat territory.

As for evidence of a spherical earth, there are thousands of pictures from orbit. If the only way you conspiracy theorists can "debunk" all those pics is to claim:
   1. a massive NASA/gov't/contractor conspiracy at all levels to fake data
   2. that we've never gone to space
...then you really aren't debunking anything, just denying the life's work of generations of engineers and scientists. Apply Occam's Razor. Which is more likely, thousands of people all working together to deceive you or that you just don't grasp basic science concepts?

That belongs to the level of critical thinking that also thinks scientists are in it for the money and fat gov't grants. I know I'm drivin' around in my Maserati from those juicy space research proposals, I feel sorry for those investment bankers and lawyers and medical doctors, they are really missing the gravy train, lol.

https://cdn.geekwire.com/wp-content/uploads/2016/12/ezgif.com-resize-6.gif

It was taken from 3km high, genious. But don't bother... So yeah, there is the curvature.