In April 2019, a group of astronomers from around the globe stunned the world when they revealed the first image of a black hole — the monstrous accumulation of collapsed stars and gas that lets nothing escape, not even light. The image, which was of the black hole that sits at the core of a galaxy called Messier 87 (M87), revealed glowing gas around the center of the black hole. In March 2021, the same team produced yet another stunning image that showed the polarization of light around the black…
