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Kryptonite: Superman's radioactive weakness explained

Uncover the secrets of Kryptonite, Superman's ultimate weakness! Learn how this radioactive "bling" from Krypton impacts the Man of Steel. The kryptonite weakness originated in a 1943 radio show!
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Superman beware! Scientists claim a real-life KRYPTONITE could be the secret to a greener future

In the classic films and comics, kryptonite is Superman's ultimate weakness, robbing him of his powers. Originating from Superman's home world of Krypton, the green alien material emits a unique, ...