On left, this composite simulated image shows how M87* is seen by the Event Horizon Telescope at 86 GHz (red), 230 GHz (green), and 345 GHz (blue). On right, 345 GHz is seen in dark blue ...

The Changing Shadow of M87* In 2019, the EHT collaboration released the first-ever image of a black hole, a “fiery doughnut” ...

NASA has discovered a supermassive black hole at the center of galaxy M87, 52 million light-years away from Earth. Estimated to be 2.6 billion times the mass of the Sun, this intriguing black hole ...