The Cold War and that whole mutual assured destruction thing sure made the space race fun.
Every astronaut strapped into a rocket and sent toward the stars was an ideological finger in the chest of the other side, each mission asserting who had the better technology or, more importantly, the most firepower.
The United States took its licks as the Soviet Union was first to launch a satellite, put a man in space (and then a woman) and execute the first spacewalk. Only after Neil Armstrong and Buzz Aldrin set foot on the moon could the Americans begin to perceive they were finally winning the race.
But the Reds were absolutely unmatched when it came to using talented illustrators to make the average citizen believe their country would conquer the cosmic frontier.