One of the biggest mysteries about Superman, other than “how does he have sex without killing the woman” has always been how does the Man Of Steel shave? Now, several celebs are giving their thoughts on the matter. Is it Laser vision? Is it a Kryptonite razor? Maybe even comets to the face? Check out what Kevin Smith, Bill Nye, Mayim Bialik, and Jamie Hyneman & Adam Savage have to say on the matter.