Kryptonite has been a long-running weakness for Superman, but its latest form threatens far more than Kryptonians this time ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Kryptonite was first introduced in a Superman radio serial episode in 1943. In 2004, workers at a drill site in Serbia’s Jadar ...

Superman debuted in Detective Comics' (known now as DC Comics) Action Comics #1 in April of 1938. It depicted Superman's first sally of righteousness into the criminal underworld of Metropolis. On its ...

Superman might be faster than a speeding bullet, but even the Man of Steel needs a day off. Kryptonite, his most infamous Achilles’ heel, wasn’t part of the original lore. It was cooked up during a ...

When you first became a leader, did you realize that your success, failure and progress would be based on the same fictional substance that plagued Superman? Imagine for a moment that, when close to ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: Warner Bros. Superman has gone up against many different types of foes, but what about pink Kryptonite? What does the pink ...

You can’t hear the word kryptonite without thinking of the Man of Steel. Radioactive fragments of Superman’s home planet, Krypton, Kryptonite is the go-to choice for anyone wanting to take him down.

“Kryptonite” is a fictional material that brings down Superman, but the element krypton actually exists, and molecules that end in “ite” actually exist. Why can’t we make kryptonite? Chemistry is one ...