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 ...

DC has officially introduced a Kryptonite unlike any other to Superman and the Super-Family’s lore. Not only is this new ...

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 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 ...

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 ...

Kryptonite is one of those things that can get a little annoying when it’s overused. The current Emerald Era could easily fall into that trap, but Superman Unlimited #2 actually makes the whole thing ...

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 ...

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 ...

The mineral jadarite has the same chemical composition as Superman’s weakness. It may be a problem for humans, too. By Andrew Paul Published Jul 14, 2025 11:05 AM EDT Add Popular Science (opens in a ...