Posted by Mikelkie on 27/05/2017 20:45:53:
But why haven't they made a return visit to the moon ??
Because the crews are no longer considered expendable, and because the expense is too great when the aim of the Apollo project (beating the Soviet Luna project) is no longer there.
In the 60s and 70s astronauts and cosmonauts were widely publicised as heroic ex test pilots and their deaths served to demonstrate to the public just how difficult and dangerous the mission was, possibly increasing public interest and support. Once the shuttle programme began however, the public face of the missions became that of a bus taking scientists to work (possibly to cover up for the military nature of most of the earlier missions) and each failure became a public relations disaster as "ordinary people" were involved. (Try naming Mercury, Gemini and Apollo crew members, then do the same for the Shuttles).
As far as landing on the moon in 1969 is concerned, I think the answer is found in three questions:
1: Is the basic technology behind space travel possible? (The physics works, unfortunately there were plenty of holes in London to prove Von Braun's rockets worked, and artificial satellites have entered everyday life. It would be difficult or impossible – not to mention pointless and expensive – to fake GPS transmissions, in a way which would be consistent around the world.)
2: Which would have caused the US a greater problem, being publicly found out in a lie by the USSR at the height of the cold war, or losing a second Apollo crew? (Apollo 1 delayed manned missions, but development and testing continued.)
3: Could NASA have successfully predicted the composition of the mineral samples returned by the USSR's later Luna missions in order to fake Apollo 11's samples? (And would they still be faking data to produce the LRO photographs of the Apollo landing sites?).
Brian