The Voyage of the Space Beagle

Blurb

The Voyage of the Space Beagle is a science fiction novel by A. E. van Vogt in the space opera subgenre. The novel is a "fix-up" compilation of four previously published SF stories:
"Black Destroyer"
"War of Nerves"
"Discord in Scarlet"
"M33 in Andromeda"
The book was republished in 1952 under the title Mission: Interplanetary.
A huge globular spaceship, manned by a chemically castrated all-male crew of nearly a thousand, who are on an extended scientific mission to explore intergalactic space, encounters several, mostly hostile, aliens and alien civilizations. On board the spaceship during its journey, both political and scientific revolutions take place.
The title of the book is a reference to The Voyage of the Beagle, Charles Darwin's book about his five-year voyage around the world on the HMS Beagle.