[FredZarguna]

It was a fragment from the exploded planet, Krypton.

[Somehow, planetary fragments were able to reach Earth through interstellar space. How that happened is curious but by no means the most serious of the ontological and metaphysical problems still unresolved in the DC® Universe.]

[PROCON]

Thank you, one of the long, unexplained questions that haunted my youth has been answered.

OK, 'nuther one, who wins in a fight, Batman or Green Lantern and why?