Questions tagged [kryptonite]

For questions about the kryptonite substance that is known to harm Superman from the DC comics franchise. Always use with the [dc] tag and any other more specific tags where necessary such as [comics]. Use with [superman] only when asking specifically about the character and not merely mentioning him.

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Why, exactly, does kryptonite hurt Superman?

To my understanding, kryptonite is a rock that is from the planet Krypton. Superman is also from planet Krypton. Yet somehow kryptonite weakens Superman and can even kill him. How does this work? Why ...
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