Science fiction 173 Science fiction, American 112 Interplanetary voyages 80 Star Trek fiction 67 Life on other planets 44 Kirk, James T. (Fictitious character) 39 Spock (Fictitious character) 36 mer ... Fiction 34 McCoy, Leonard (Fictitious character) 33 Picard, Jean Luc (Fictitious character) 30 Space ships 25 Time travel 20 Science fiction, English 14 Twenty-first century 14 Genetic engineering 11 Space colonies 11 Human-alien encounters 9 Space and time 9 Skywalker, Luke (Fictitious character) 7 Telepathy 7 Artificial intelligence 6 Picard, Jean-Luc (Fictitious character) 6 Solo, Han (Fictitious character) 6 Space flight 6 Virtual reality 6 Women 6 Dinosaurs 5 Dune (Imaginary place) 5 Fantasy 5 Fantasy fiction, American 5 mindre ...