Superman is the world’s greatest hero. He is a tireless champion dedicated to protecting life and battling injustice not only in his city of Metropolis, but also all over his adopted world and acro ... ss the universe. With his fantastic powers and abilities, fueled by his alien cells—which hyper-efficiently process the solar energy of Earth’s yellow sun—Superman is an unstoppable force for good and a steadfast punisher of evil. Superman is a founding member of the Justice League, and an inspiration to countless other heroes, continuing into the 21st century and beyond.