Original sentence: It depicts a secular humanistic future in which humankind has overcome sickness, racism, poverty, intolerance, and warfare on Earth; the central characters explore the galaxy, finding new worlds and meeting new civilizations, while helping to spread peace and understanding.Star Trek collectively refers to six science fiction television series spanning 725 episodes, ten motion pictures, and hundreds of novels, video games, and other works of fiction all set within the same fictional universe created by Gene Roddenberry in the early- to mid-1960s
Edited sentence: It depicts an optimistic future in which humankind has overcome sickness, racism, poverty, intolerance, and warfare on Earth; the central characters explore the galaxy, finding new worlds and meeting new civilizations, while helping to spread peace and understanding.Star Trek collectively refers to six science fiction television series, ten motion pictures, and hundreds of novels, video games, and other works of fiction all set within the same fictional universe created by Gene Roddenberry in the early- to mid-1960s