Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics. In its best-known form, it is a green, crystalline material originating from Superman's home world of …

Kryptonite is the name given to shards of matter that were cast off from the planet Krypton after its destruction.

Aug 11, 2025 · Kryptonite is an irradiated piece of crystal from his homeworld of Krypton, which causes physiological changes to any Kryptonian in close proximity. Like the multiple versions of Superman …

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Apr 5, 2018 · From unexpected origins to tumultuous development, this glowing radioactive rock from space has proven to be almost as endearing and ubiquitous as Big Blue himself. And after eighty …

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The meaning of KRYPTONITE is a substance that causes the comic-book character Superman to become weak when he is exposed to it—often used to describe something likened to kryptonite in …

This radioactive debris became known as Green Kryptonite, or simply kryptonite, and it is deadly to super-powered Kryptonians. It does not react with oxygen, so it does not combust when it enters …

Jul 7, 2025 · Here’s our list of the different types of Kryptonite in the DC Comics Universe, along with their effects on Superman and others. It should be noted, this list only includes Kryptonite that is...

Jun 3, 2015 · Radioactive fragments of Superman’s home planet, Krypton, Kryptonite is the go-to choice for anyone wanting to take him down.