Enemies Human-alien encounters 4 Interplanetary voyages 4 Space flight 4 Space ships Exploration 3 Science and civilization 3 more ... Enterprise (Imaginary space vehicle) 2 Exploration of outer space 2 Closed caption video recordings 1 Friendship 1 Resurrection 1 Scott, Montgomery (Fictitious character) 1 Sulu, Hikaru (Fictitious character) 1 Video recordings for the hearing impaired 1 less ...