Exotic atom to weak, electromagnetic and gravitational forces, muonic atoms are governed to very high precision by the electromagnetic interaction. Since a muon is more massive than an electron, the Bohr orbits are closer to the nucleus in a muonic atom than in an ordinary atom, and corrections due to quantum electrodynamics are more important. Study of muonic atoms' energy levels as well as transition rates from excited states to the ground state therefore provide experimental tests of quantum electrodynamics. Muon-catalyzed fusion is a technical application of muonic atoms. A "hadronic atom" is an atom in which one or more of the
Captain Atom which returns Captain Atom to his usual self (if somewhat confused). In 2005/2006, Captain Atom appears in a nine-part limited series entitled "Captain Atom: Armageddon" under DC's Wildstorm imprint. Captain Atom's sacrifice in "Superman/Batman" sends him to the WildStorm universe for the duration of the series. In this title, he wears a yellow/red outfit that was first seen in the 1996 "Kingdom Come" limited series. At the moment of his apparent death, Captain Atom experiences a time-shift coinciding with his 2005 appearance in "Superman/Batman", resulting in his arrival in the Wildstorm Universe. He quickly gets into a fight with an