|First Appearance:||"Action Comics 1"|
Orbiting a red dwarf star some fifty light-years distant from Earth, the planet Krypton was once very much like our world. In fact, Krypton's inhabitants were indistinguishable from humans, though far more advanced. But as Kryptonian civilization flourished, the planet turned towards isolationism. Space exploration was abandoned as Krypton quarantined itself from the surrounding galaxy. The planet was an enigma to all but itself when internal pressures in Krypton's volatile core led to its destruction. Now, all that remains of a once great world is a particle cloud of radioactive dust.