Powers: Super Strength
Atomic Energy Blasts
Nuclear Energy Absorption
Power of flight
Weaknesses: Captain Atom's metal "skin" is a containment suit. When breached, a nuclear explosion is released from within him.
Bio: Nathaniel Christopher Adam was a United States Air Force Officer of the Vietnam War era. Adam had been framed for a crime he didn't commit and sentenced to death under the watch of Col. Wade Eiling in 1968. As an alternative to execution, he was invited to participate in a military experiment with little chance of survival, in exchange for a presidential pardon. The experiment involved testing the hull of a crashed alien ship's durability by exploding a nuclear bomb under it. Adam survived as the metal melted into his body and the excess energy threw him forward in time nearly twenty years. Blackmailed by Eiling, Adam was given the code-name Captain Atom and forced to become a superhero under the U.S. government's command.
Notes: When Captain Atom's containment suit was cut by Wonder Woman's sword, he took Superman into Earth's upper atmosphere in an attempt to kill Superman when he went critical. Captain Atom was killed; Superman was not.