The connection between Superman and Kryptonite is so firmly established in American culture that “Kryptonite” has become ...

Black Kryptonite is one of the deadliest forms of Kryptonite in existence, and now it's back and worse than ever.

10 Types Of Kryptonite (Other Than Green) That You Need To Know About. Who knew there were so many? by Niall McAvera. Jul 18, 2017 July 18th, 2017. Warner Bros.

But don't expect any steamy make-out sessions in Kara's future. Based on the episode description, Supergirl's exposure to Red Kryptonite will make Kara turn on her friends and the citizens of ...

Kryptonite is no longer just the stuff of fiction feared by caped superheroes. A new mineral matching its unique chemistry - as described in the film Superman Returns - has been identified in a mine ...