@Fahim88 15 February 2021 more from that month

Stephen’s greatest scientific achievement was a discovery about black holes in 1974 that shook the world of physics. According to Einstein’s theory, nothing — including light — can escape from inside a black hole. That’s why it’s black. But Stephen found that black holes are not really completely black. Instead, due to the subtle consequences of quantum physics, they emit what we now call Hawking radiation