Star Smashers of the Galaxy Rangers is a 1973 comic science fiction novel by American writer Harry Harrison.

[2] Two college students, Chuck van Chider and his friend Jerry Courtenay, accidentally invent a device that can transport them through space, powered by a substance called "Cheddite", which is created by irradiating cheddar cheese.

Chuck, Jerry, their apparent mutual love interest Sally Goodfellow, and their janitor-turned-KGB spy Old John find themselves transported to Titan, a moon of Saturn, where they must contend with the native Titanians.

Later, through a bizarre chain of events, they are flung into the far reaches of the galaxy, where they become involved in an intergalactic war that could change the universe forever.

[3] Science fiction writer Theodore Sturgeon, describing the novel as "a Tom Swiftian, gee-whiz parody of the very worst that our severest and most ignorant critics lay on us," concluded that "I love this kind of thing at short-short length.