Clark Kent is the Man of Steel, the Last Son of Krypton — an alien orphan raised here on Earth where our yellow sun gives him powers of flight, strength, speed and invulnerability, as well as X-ray and heat vision and cold breath.
You know the story: As the planet Krypton is destroyed, a pair of Kryptonians send their only son into space to save him. The ship lands on Earth, and human parents find the Kryptonian baby and raise him. As he grows up, he realizes he has amazing powers. Cue the music and a passer-by shouting, “It's a bird. It's a plane. It's Superman.”