Humanity is very vague, it was the Nazi Germany (wernher von braun) who mastered the rocketry, without them the space program would have been years if not deca

Humanity is very vague, it was the Nazi Germany (wernher von braun) who mastered the rocketry, without them the space program would have been years if not decades behind. btw i don't get the amazement when 28 years ago we had Voyager's 2 flyby photos of Neptune.