Astronomers have finally glimpsed the blackness of a black hole. By stringing together a global network of radio telescopes, they have for the first time produced a picture of an event horizon — a black hole’s perilous edge — against a backdrop of swirling light.
For more details see: https://www.nature.com/articles/d41586-019-01155-0
Image of a black hole at the centre of the galaxy M87 obtained by the Event Horizon Telescope network.