GREEN KRYPTONITE	BIOGRAPHY
Created by (comics): Bill Finger and Al Plastino

TECHNICAL DATA

Name: Green Kryptonite
DCU Creator(s): Caused during the destruction of Krypton
Weight: Varies
First Appearance: Introduced on Superman radio show;
(Kryptonite in comic, originally colored red): Superman Vol. 1 #61 (November-December 1949): "Superman Returns to Krypton!"
(green): Action Comics #161 (Auguest 1951)
Creators: (comics): Bill Finger and Al Plastino

HISTORY

Green kryptonite is the best-known version of a variety of radioactive substances created during the destruction of the planet Krypton. The force of the planet's explosion sent fragments of varying size and shapes across space, with arguably the bulk of recorded debris making its way to Earth. It is believed the kryptonite fragments were pulled through the space warp which brought the spacecraft carrying baby Kal-El to Earth.

Green kryptonite exposure is ultimately lethal to Kryptonians such as Superman.

In most versions of reality, green kryptonite has no effect on humans, though in one reality long-term exposure led to cancer.

CHRONOLOGY

For a definitive list of appearances of Green Kryptonite in chronological order click here

PROFILE REFERENCES

Who's Who: Update '87 #3 (October 1987)