Astronomy Picture of the Day . M1: Polarization of the Crab . ... 23.11.1995 . ... Credit Copyright: AATB , Caltech , David Malin, Jay Pasachoff Explanation: The Crab Nebula resulted from a star that exploded - a supernova. ... Much of the emitted light has been found to be polarized . Light waves with the same polarization vibrate in the same plane. Light waves can be polarized by reflection from a surface, an effect familiar to sunglass wearing fishermen and skiers. ... November 1995 . ...