You just don't much more classic sci-fi than this Pan-Books edition of The Green Hills of Earth by Robert Heinlein. That gleaming steel rocket speeding toward a mysterious crater pocked moon. What adventures await our stalwart heroes? What would that plucky band of men, and maybe a woman, find there? The ruins of an ancient civilization hiding a sinister secret? Insidious aliens bent on their destruction? Humans with strange customs that are alien to our oh-so-very-normal heroes and maybe heroine?
The Green Hills of Earth is actually none of those things. Its about a musician who wanders the space ways. Once a rocket man he lost his sight saving his ship from certain doom. Now he's a hero and even though he's blind and little use to a crew, he can always find a berth.
Or something like that, it's been a long time.