I apologize if this question has been asked to death, but I tried the Search function and didn't really come up with what I was looking for.
How did Kryptonite get to Earth? It seems like an awfully long way away for fragments of Krypton to tumble through space at sub-light speeds...
I assume there are probably as many answers to this as there are Superman series, graphic novels, Otherworlds books, animated and live-action television series, and movies. Still, I'd love to hear a consensus on this question from the people who know the comics.
Pre-Crisis it was stated in Action #500 that the warp-drive Jor-El developed was flawed and created a sort of 'space-warp' between Earth and Krypton through which Krytonite and about everything Jor-El had shot up into space had been pulled through.
Post-Crisis where was originally one piece of Krytonite which caught ont he tail of the rocket. Then Luthor developed a way manufacture the stuff but artifical K didn't seem as effective as the real stuff. Then Batman fiddled with the piece Superman gave him and came up with Red K which turned Superman's skin transparent and sent his powers throught he roof to the point he could not really do anything. Now we have multicolored K again. Hopefully not with the same powers as before.