Superman was born in Klip, and his alien name is Kal-El. When he was a baby, he was sent to a spaceship by his father "Jor-El" and his mother "Laura". When his spaceship left, the planet where he was born exploded. His spaceship landed on the earth. It was adopted by a couple at Kent Farm in Smallville, Kansas, USA, and was renamed "clark kent". When Clark was a boy, he wore superman's tights, served as a superhero in smallville, and took time travel adventures with the 3 1 century hero organization, the superhero legion. When I grow up, I will be a reporter for the Daily Planet in metropolis, and I will become a superman when the crisis comes.
Generally speaking, he is not from the earth, and aliens can fly. It's just that he likes to wear underwear to show his uniqueness .............