Astronomers May Have Spotted Another Neutron Star Merger

In 2017, gravitational waves and light were observed coming from the merger of a pair of neutron stars. The discovery proved that gravitational wave sources could also be viewed at visible, X-ray, and even gamma-ray wavelengths, but has remained the only such event observed to date. Now, researchers have identified a “cosmic look-alike” — an event they believe came from the same type of system as the one that produced the gravitational waves.