The Black Hole Is a Dark, Very High Energy Photon Source

Around the same time, we started seeing unexplained radiation from the sky. And thatt made people think, hey, maybe this other crazy idea called the black hole exists out there. Let's go look for it. So neutron stars are totally different, because you can still escape a neutron raght,. They don't have an event horizon, but they are crazy, dense gravitational objects. We found thit.