Eight New Echoing Black Hole Binaries Discovered in Our Galaxy: MIT Researchers

Black holes are intriguing and mysterious objects. They are dreaded, too, because their gravitational pull is so strong that they do not allow anything to pass through them, not even light, except on the rare occasions when they feed. When a black hole pulls in gas and dust from an orbiting star, it sends out spectacular bursts of X-ray that bounce and echo off the ga...