The Coming Explosion of Gravitational-Wave Detections
Astronomers have spotted the phenomenon for a fourth time—and they say there’s many, many more to come.
Astronomers have detected gravitational waves coming from the collision of black holes somewhere in the universe—again.
The detection, Wednesday, marks the fourth time in less than two years that scientists have observed the cosmic phenomenon. The Laser Interferometer Gravitational-Wave Observatory, or LIGO, the first-ever detection in February 2016. That news came a century after Albert Einstein predicted the existence of gravitational waves in 1916 as part of his general theory of relativity. A second
