The Legion of Super-Heroes is a superhero team in the DC Comics universe, first appearing in 1958. Set in the 30th and 31st centuries, the team consists of young heroes from various planets who unite to protect the galaxy. They often face threats from villains and cosmic dangers, showcasing their unique powers and teamwork. The Legion is known for its diverse membership, including characters like Superboy, Saturn Girl, and Lightning Lad. Over the years, the team has undergone various reboots and adaptations in comic books, animated series, and other media, maintaining its popularity among fans of superhero stories.