Space Cadet was published by Charles Scribner’s Sons in 1948 as the second of Heinlein’s Scribner’s juveniles. Matt Dodson enters the Space Patrol Academy — an interplanetary peacekeeping force charged with preventing nuclear war and maintaining order in the solar system. The novel follows his training, his friendships (particularly with Tex Jarman, a Texan, and Oscar Jensen, a Venusian colonist), and his first mission, which involves diplomacy with the native Venusians.
The novel is the direct ancestor of Star Trek — Gene Roddenberry acknowledged it — and virtually every subsequent story about a young person entering a military academy in space. Heinlein’s emphasis on multiculturalism (the Patrol is deliberately multiethnic and multinational), on diplomacy over force, and on the moral responsibility of power anticipated the ideals of the Federation by two decades.
The Star Trek Connection
Gene Roddenberry cited Space Cadet as a direct influence on Star Trek. The Patrol’s multicultural composition, its commitment to diplomacy over force, and its vision of a unified human species cooperating for peace all reappear in the Federation. The novel’s insistence that the Patrol must be above national loyalty — that its officers serve humanity, not any single nation — directly prefigures the Prime Directive and Starfleet’s multinational ethos.
Collecting Space Cadet
First edition (Charles Scribner’s Sons, New York, 1948): Green cloth with Scribner’s “A” on copyright page. Dust jacket.
Approximate market values:
- Fine in dust jacket: $2,000–$5,000
- Very good: $800–$2,000
- Without jacket: $100–$300
Value trajectory (2016–2026): Strong appreciation.
Projected values (2026–2036): Fine copies should reach $5,000–$10,000.
Frequently Asked Questions
Is this related to the Tom Corbett: Space Cadet TV show? The show (1950–1955) was closely based on the novel, though the legal relationship was complicated. Heinlein received some credit but felt the adaptation diluted his ideas.