And the standard response is usually NASA are all liars and all...

And the standard response is usually NASA are all liars and all their pictures of earth are CGI..........conveniently forgetting that many nations and Unions of Nations (many of whom hate each other) have very active space programs - USA, Russia, China, India, Japan, EU......not to mention private individual self made billionaires such as Elon Musk, Jeff Bezos and Richard Branson who choose to spend their hard earned money on space exploration.

All the above pumping literally tens of billions of dollars each year into space exploration.......and if we are to believe the flattards it is all to keep alive a giant (and essentially meaningless) conspiracy from the masses.