After the Kryptonians refused the Shi'ar from using the World-Gate network like the Kree and the Skrulls, and mediation deteriorated, the Kryptonians constructed a massive shield around Krypton to protecting the planet and constructing orbital defense weapons as it was then besieged by the Shi'ar for over five years. The battlestation decimated millions of Kree and Skrull ships within minutes that forced the Skrull to abandoned the invasion while the Kree would persists for the next thousand years before finally leaving in defeat.Ī period of peace resumed until the Shi'ar Empire under Emperor Kral'Nor expanded into the Xerius Galaxy. In ensuring that their enemies would not come into the Xerius Galaxy, Krypton's brilliant scientists constructed a massive and heavily armed battlestation called Sentrius. Krypton underwent an isolationist policy from being involve in the Kree-Skrull War, but knew that the Kree and Skrulls would eventually come. Seeing there was no use in convincing either side to settling peace, every Kryptonian returned to Krypton and shut down the entire World-Gate network in order to prevent the Kree and the Skrulls from using it. Initially, the Kryptonians tried to mediate for both sides to peacefully end their conflict but neither Kree nor Skrull would be satisfied until the other side was destroyed. Both sides want them as allies, to completely annihilate the other. Immediately, both the Kree and Skrull Empires recognized that Kryptonian technology was infinitely superior to theirs. Because of their technological advances, the Kryptonians began to explore the farthest reaches of space and establishing a World-Gate network, allowing to explore much of the universe and contacting many alien races.ĭue to their explorations, the Kryptonians founded themselves involved in the Kree-Skrull War. Because of these drastic environmental changes, Krypton's inhabitants developed advanced technology, enough to halt the tide of glacial ice.

By the time Rao turned into a red supergiant, the Kryptonians lost their powers and Krypton succumbed to early ice ages.

The Kryptonian race evolved on the planet until the point where their very bodies drew strength directly from Krypton's sun, giving them amazing abilities and nearly godlike in power. Krypton was the third planet from its sun Rao, located in the Ku'Raon System in the Xerius Galaxy. Krypton was, before its destruction, the home planet of the Kryptonian race, including Kal-El, the future Superman.

Krypton planet