The First Photograph of a Black Hole (2019)
This is the first ever photograph of a black hole, taken in April 2019 by the Event Horizon Telescope (EHT). The image shows a supermassive black hole and its shadow at the center of a galaxy known as M87. This is the first time a black hole has been photographed directly
A black hole is an astronomical body so compact that its gravity prevents anything, including light, from escaping. Albert Einstein's theory of general relativity, which describes gravitation as the curvature of spacetime, predicts that any sufficiently compact mass will form a black hole. The boundary of no escape is called the event horizon. In general relativity, crossing a black hole's event horizon traps an object inside but produces no locally detectable change. General relativity also predicts that every black hole should have a central singularity, where the curvature of spacetime is infinite.