From the back of the book:
There's a Big, Bold Cosmos Out There...
...and it's just waiting for you to get you greasy hands all over it. Myriad stars and planets await your eager, plundering grasp, and it doesn't matter if you're a rockabilly archaeologist, dry-witted Southern cop or amnesiac time-traveller, this game bends whole imaginary worlds to your will with simple tools for rules-light satirical roleplaying and a setting bulging with weird creatures, sinister drama, and mind-bending alternate universe shenanegans!
Dinosaurs...in Spaaace! is a perfectly decent game mixing classic 1950s science fiction tropes with a blisteringly fast system that shares narrative authority using the "Token Effort" system. This innovative game mechanic measures narrative will, ensuring that nothing happens unless someone wants it to. Combined with mechanics that reward laughter and a setting that privileges the absurd, you're holding dozens of hours of entertainment, miraculously made solid in your hands.