I get what you are saying but I think the analogy of NASA and flat earth is not appropriate. To entertain that example: I've been to the southern hemisphere an

I get what you are saying but I think the analogy of NASA and flat earth is not appropriate. To entertain that example: I've been to the southern hemisphere and I've seen the toilet flush the other way. I've seen the curvature of the earth from an airplane. Perhaps more importantly, there's consensus among many disconnected and conflicting parties (eg: Soviet and US space programs) And even most importantly - I don't see the motive to lie. NASA's funding isn't contingent on the earth being spherical. That's totally different than a hot war going on right now, where the belligerents disagree on everything from what led up to it to how many casualties there are on each side. That's probably the most difficult situation for you as an outsider to suss out - your own information is low and there's a big reward for making you see one narrative or the other.