Black Hole

Science Daily: LIGO detects gravitational waves for third time - Results confirm new population of black holes

summary - The Laser Interferometer Gravitational-wave Observatory has made a third detection of gravitational waves, ripples in space and time, demonstrating that a new window in astronomy has been firmly opened. As was the case with the first two detections, the waves were generated when two black holes collided to form a larger black hole.