The Sun-Eaters are an extraterrestrial species of powerful creatures that feeds of the energy of small stars, thus making them a sort of living bombs.
Sun-Eaters resembles black holes surrounded by multiple tentacles, they seem to be sentient altough with an animal-like intellect and are driven by their hunger. They can only feed on stars, thus filling their systems with thermonuclear reactions.
The same baby Sun-Eater was then released by a Morae who had infiltrated the Fortress of Solitude under Lex Luthor's orders. It had nearly consumed Earth's yellow sun before being shrunk and brought back to the Fortress.
Behind the scenes
- In the DC comics, the Sun-Eaters were created by an alien race known as the Controllers as a way to destroy entire worlds that they deemed to be too "evil."