Vonnegut wrote
The Sirens of Titan during the Space Race, the period of the Cold War during which the U.S. and the U.S.S.R. competed via their space programs. In particular, the two powers wanted to be the first to put a human astronaut on the moon (something that wouldn’t occur until 10 years after
The Sirens of Titan was published, although the U.S.S.R. managed to send an object to the moon in 1959). Thus, it makes sense that people in the novel romanticize space exploration, since this was relatively uncharted and mysterious territory at the time.