Name: Clark Jerome Kent [Earth Name] Kal-El [Kryptonian Name]
Group: None (Ocassionally, JLA)
Origin: Krypton
First appearance: Action Comics #1 (June 1938) The Man of Steel #1 [Post-"Crisis"](July 1986)
Known Relatives:
Publisher:DC
On the doomed planet Krypton, scientist Jor-El had his unborn son Kal-El, still within his birthing matrix, placed on a hyperlight drive rocket. Then with his wife Lara, Jor-El watched the ship's launch as a simmering nuclear chain reaction tore the planet apart. Jor-El targeted his son's rocket to reach the planet Earth through hyperspace, where Jor-El hoped his son would find a good life.
The tiny rocket was found by a Kansas farming couple, Jonathan and Martha Kent. They found the infant within the rocket and, being childless, Martha persuaded Jonathan that they should adopt him. Named Clark Kent, the child grew up in Smallville, Kansas, never knowing how his parents found him. The Kents began realizing Clark's special abilities at age 8 when he was unhurt after being trampled by a bull. Clark demonstrated more abilities as he grew, even being able to fly at age 17.
The following year, after Clark used his abilities to excel in a football game, Jonathan Kent revealed the remains of the rocket and how his adoptive parents had found him. Clark now understood his special powers came with responsibilities.
That night, Clark revealed his secret to his closest friend, Lana Lang. He also told her he would be leaving Smallville the following day. Thus at age 18, Clark Kent began to travel around the world to learn about his powers, become better educated, and secretly help people.
After a few years he decided to enroll in the University of Metropolis and major in journalism. Seven years after leaving Smallville, Clark witnessed an experimental NASA space plane about to crash. He saved the plane and there first met Daily Planet reporter Lois Lane. It was Lois' newspaper account of the rescue that gave Clark the superhero name of Superman.
Although Clark managed to hide his identity during that incident, he realized he must adopt a superhero identity if he was to continue a public career of superheroics. With his parents' help Clark developed a superhero costume with a distinctive chest emblem. He also practiced mannerisms and began wearing glasses to distinguish Clark Kent's appearance from that of Superman.
Returning to Metropolis, Clark began his superhero career as Superman, and his journalism career at the Daily Planet by getting the first exclusive interview with Superman.
At age 28, Clark learned about his Kryptonian heritage from an electro-psionic recording created by Jor-El and stored in Clark's birthing matrix. Learning of Krypton's fate, Clark was further determined to protect Earth.
Clark Kent's Kryptonian body acts as a solar battery absorbing solar energy which can then be used as various remarkable powers. If Earth had a red sun like Krypton's, Clark would not have these powers. Using his powers causes Clark to use up his stored yellow sun energy. He can lose his powers if he expends a lot of energy quickly (e.g. during his battle with the monster Doomsday) or if he spends too much time away from a yellow sun while in outer space. When low on solar energy, Clark can 'recharge' if exposed to a source of yellow sun energy. The rate at which he 'recharges' can vary.
Superman's superpowers include:
Clark can survive in outer space as long as he has a breathing apparatus, and doesn't lose too much solar energy. Using his powers of flight and super-speed Clark can travel interplanetary distances by himself. Interstellar distances require a spaceship.
Besides the using up of his solar energy, Clark has two other weaknesses:
When Clark's birthing matrix left Krypton, a fragment of kryptonite became embedded in the tail section. Villain Lex Luthor obtained this fragment and used part of it for a ringstone, to protect himself from Superman. After being exposed to it for a year, Luthor found the radiation destroyed his hand, and was killing his body through cancer, requiring him to obtain a new cloned body.
Note: Another villain, Mr. Mxyztptlk, a Fifth Dimensional being who can use super-science that resembles 'magic' once created red kryptonite to temporarily remove Clark's powers. Without Mr. Mxyztplk's powers, though, this 'red kryptonite' would be harmless to anyone, and is in no way connected to genuine green kryptonite.