The Hitchhiker's Guide to the Galaxy, written by Douglas Adams, is a hilarious and whimsical space novel. It follows the misadventures of Arthur Dent, an ordinary human who is swept off Earth just before its destruction to make way for a hyperspace bypass. Arthur embarks on a journey through space with his alien friend Ford Prefect, encountering eccentric characters and absurd situations along the way. The Hitchhiker's Guide to the Galaxy is a delightful and witty space adventure for kids.