Supergirl Officially Just Teased the DCU’s Deadliest Superman Weapon

The trailers for Supergirl have shown a lot of the story’s space-based chase, but they’ve left out one key element from the comics – until now. Warner Bros. recently released new posters for premium formats like Dolby Cinema, and fans who know the comics will notice something important in the artwork. The posters show Supergirl flying through space with several suns in the background, and one of them is distinctly green. This color is a direct reference to a dangerous sun containing Kryptonite, which orbits the planet Barenton – a powerful weapon created to harm Superman, as seen in the comics by Tom King and Bilquis Evely.



