Key takeaways The galaxy M87, located in the Virgo constellation, provided the first-ever photo of a black hole in 2019, when the Event Horizon Telescope captured an image of the supermassive black hole at the galaxy’s center. An international research team including UCLA has observed a teraelectronvolt gamma-ray flare seven orders of magnitude — tens of millions of times — larger than the event horizon, or surface of the black hole itself. A flare of this intensity — which has not been observed...