The VLA detected polarized light at radio wavelengths emitted by a jet streaming away from the site of the star that exploded. Faraday rotation causes polarized light to twist as it travels away through a strong magnetic environment surrounding the site. Courtesy Jeff Hellerman, NRAO/AUI/NSFThe Mechanics of Faraday RotationPolarized light is light that oscillates in a specific direction. Our new GRB observations allow us to use the Universe as our laboratory to test our understanding of how physics operates in such extreme conditions.” Now that the VLA has successfully measured the Faraday rotation of polarized light in a GRB, it points the way for similar observations of other GRBs.