A Black Hole in Polarized Light (IMAGE) Center for Astrophysics | Harvard & Smithsonian Caption A view of M87's supermassive black hole in polarized light. The lines mark the orientation of polarization, which is related to the magnetic field around the shadow of the black hole. Credit EHT Collaboration Usage Restrictions Credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.