"I’ve been against the space program.... After all, we knew there were no resources we could economically bring back from [the moon], and we knew there was no atmosphere."

"Even if the whole thing were paved with diamonds, that wouldn’t help us much. So it seems like a vaudeville stunt. A lot of scientists felt it was money that might be spent in other areas of research. What it was was money spent on engineering. It might as well have been an enormous skyscraper or a huge bridge or something like that. It was publicity and show business, not science. John F. Kennedy was largely responsible for it. He was competitive. He was a tough, joyful athlete and he loved to win. And it wasn’t a bad guess, really, that this might cheer Americans up and make us more energetic. It didn’t quite work out that way, but Kennedy, in his enthusiasm for this thing, was really wishing the best for the American people. He thought it might excite us tremendously.... It seemed childish. It seemed childish even to children. My children simply weren’t interested. There was nothing they wanted on the moon. A third grader knows there’s no atmosphere there. There’s nothing to eat or drink, nobody to talk to. They already know that. There’s more that they want in the Sahara or on the polar icecap.... They picked colorless men to make the trip, because colorless men were the only sort who could stand to make it. In science-fiction stories, people on spaceships are arguing all the time. Well, people who are going to argue shouldn’t go on spaceships in the first place."

Said Kurt Vonnegut in a 1973 interview with Playboy.
Playboy: You said it was sexual. 

 

Vonnegut: It’s a tremendous space fuck, and there’s some kind of conspiracy to suppress that fact. That’s why all the stories about launches are so low-key. They never give a hint of what a visceral experience it is to watch a launch. How would the taxpayers feel if they found out they were buying orgasms for a few thousand freaks within a mile of the launch pad? And it’s an extremely satisfactory orgasm. I mean, you are shaking and you do take leave of your senses. And there’s something about the sound that comes shuddering across the water. I understand that there are certain frequencies with which you can make a person involuntarily shit with sound. So it does get you in the guts. 
Playboy: How long does that last? 
Vonnegut: Maybe a full minute. It was a night flight, so we were able to keep the thing in sight in a way that wouldn’t have been possible in the daytime. So the sound seemed longer. But who knows? It’s like describing an automobile accident; you can’t trust your memory. The light was tremendous and left afterimages in your eyes; we probably shouldn’t have looked at it. 
Playboy: How did the people around you react? 
Vonnegut: They were gaga. They were scrogging the universe. And they were sheepish and sort of smug afterward. You could see a message in their eyes, too: Nobody was to tell the outside world that NASA was running the goddamnedest massage parlor in history.