For a few brief nights each year, you get a rare chance to watch a monster blink. The Event Horizon Telescope collaboration has released new, detailed views of M87*, the supermassive black hole at the ...

Black holes live forever, at least according to general relativity. Once material crosses a black hole's event horizon, it is trapped forever, until the last day of cosmic time. But we know that isn't ...

The idea of black holes was first proposed in 1916, but at the time, physicists didn't think they actually existed. Today, we ...