Cygnus X-1 Was the First Widely Accepted Black Hole Candidate

LIGO detected the ripples in spacetime on September 14, 2015, from two black holes that had collided over a billion years ago.

In 1974 Hawking showed that black holes should emit faint radiation and eventually evaporate, though the effect has never been observed directly.

The supermassive black hole at our galaxy's center was imaged for the first time in 2022.

The Event Horizon Telescope captured the glowing ring around the black hole at the center of galaxy M87, about 55 million light-years away.