The Sun-Eaters are an extraterrestrial species of powerful creatures that feed off of the energy of small stars, thus making them a sort of living bombs.
Overview
Sun-Eaters resemble black holes surrounded by multiple tentacles; they seem to be sentient although with an animal-like intellect and are driven by their hunger.[1] They can only feed on stars, thus filling their systems with thermonuclear reactions.[2]
History
Original multiverse

A baby Sun-Eater was found by Superman during one of his adventures. Eventually, he decided to keep it as a pet in the Fortress of Solitude.[2]
New multiverse

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.[1]
Appearances
Supergirl
Season 4
Season 5
Season 6
- "I Believe in a thing Called Love" (mentioned)
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".
References
- ↑ 1.0 1.1 "Deus Lex Machina"
- ↑ 2.0 2.1 "Stand and Deliver"