Krypton is a fictional planet in the DC Comics universe, and the native world of the super-heroes Superman and, in some tellings, Supergirl, and Krypto the "super dog". Krypton has been portrayed consistently as having been destroyed just after Superman's flight from the planet, with exact details of its destruction varying by time period, writers and franchise. read more
Krypton: history Krypton was discovered by Sir William Ramsay, Morris W. Travers in 1898 at Great Britain. Origin of name: from the Greek word "kryptos" meaning "hidden". read more