Superman is able to stop the meteor, but it breaks up and showers the Earth in Kryptonite. Superman Unlimited #1’s cover boasts that this is the beginning of the Emerald Age, and things change rapidly ...

Superman's greatest weakness has always been Kryptonite - the radioactive element that saps his strength and leaves him vulnerable to attack. It makes one wonder what would happen if he somehow gained ...

Superman is one of the most powerful superheroes of all time, and he can pretty easily handle most threats on Earth, so DC Comics writers need some ways to weaken him. Kryptonite was the perfect ...

The connection between Superman and Kryptonite is so firmly established in American culture that “Kryptonite” has become shorthand for everything from the idea that even the strongest have weaknesses ...