Krypton

Krypton was the home world of superhero cousins Superman and Supergirl. It was eventually destroyed due to the negative affects of crystals becoming unstable, causing the entire planet to gradually deteriorate piece by piece.

It was then that Jor-L and Lara, Superman's parents and Supergirl's paternal uncle and aunt, had sent their infant son into space onto Planet Earth for his safety and perished along with the rest of their kind as Krypton finally disintegrated to smithereens.

It debuted in the feature film Teen Titans Go! To the Movies when the Teen Titans had traveled through time to prevent the infant Kal-L from being sent to Earth and becoming Superman in the first place.

Former Inhabitants

 * Jor-L and Lara (deceased)
 * Zor-L and Alura (deceased)
 * Brainiac

Survivors

 * Kal-L/Superman
 * Kara-Zor L/Supergirl