Superman did the impossible and developed a new power that made him immune to Kryptonite, but just what is the cost for that ...

Jadarite—commonly known as kryptonite due to its chemical similarity to the mineral bane of Superman—has only every been ...

Most fans know of Superman's vulnerability to Green kryptonite, though there are many types of his radioactive home planet ...

Superman Unlimited #2 hits stores Wednesday with Krypto-Knights and a Kryptonite King! Can the Man of Steel handle this ...

Red Kryptonite has Superman seeing red, so Lois turns to the enemy for help in Superman #27. Can the Lex Luthor Revenge Squad ...

The first issue of Superman Unlimited ended with the Man of Steel emitting a golden glow after awakening from a coma. The ...

In 2004, researchers from the mining group Rio Tinto found this peculiar mineral in Jadar (pronounced "Yadar"), Serbia. Its ...

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 ...