|First appearance||Adventure Comics #359 (August 1967)|
|In story information|
Takron-Galtos is a planet-sized prison built to house the most dangerous criminals in the galaxy. It exists in the 20th Century, as shown in Justice League of America #247, February 1986. It is featured in JLA #21, when Adam Strange, along with the League, tricks an invading force of aliens, the En'teran Slavemasters. The aliens end up teleported to the surface of Takron-Galtos.
During a prisoner uprising a guard named G'Hu is captured. By the time fellow guards break in, G'Hu has defeated his captors. This action causes him to be recognized and recruited for the Green Lanterns.
A Takron-Galtos prisoner is recruited for the Lantern's enemies, the Sinestro Corps. Bur'Gunza, a model prisoner is let out of his restraints on the day of his release. He slays forty-two guards before he is defeated. This brings him to the attention of the Sinestro Corps.
It is still in use in the 30th Century. Most of the prison functions are automated, and the administrative staff consists of a warden and a small group of Science Police.
In Takron-Galtos' first appearance, members of the Legion of Super-Heroes are imprisoned there after the new President of Earth, Kandro Boltax, outlaws the Legion. The young superheroes are released after Boltax is revealed to be the supervillain Universo, who had turned the population of Earth against the Legion by putting a mind control chemical in the water.
In the miniseries Final Crisis: Legion of Three Worlds, Superboy-Prime launches an attack on Takron-Galtos and frees every inmate. His purpose is to re-gather the 'Legion of Super Villains' in order to take on the Legion of Superheroes. He then proceeds to scorch the planet's surface and brand it with the Superman insignia. Twenty-thousand staff and guards are murdered in the conflict. In the final issue, #5, the planet is shown to be under reconstruction.
Appearances in other media
Takron-Galtos has appeared or been mentioned in several episodes of the Legion of Super Heroes animated television series. As in the comic books, Takron-Galtos is used as a prison planet for the galaxy's worst criminals.