Scientists say they may have detected the never-before-seen collision of a neutron star and a black hole, a collision between two neutron stars and three potential black hole mergers
The detections were made last month shortly after researchers turned on three gravitational wave detectors -- the twin LIGO detectors in the United States and the Virgo detector in Italy -- for a third observational campaign that began April 1. Gravitational waves are ripples in space and time. Neutron star collisions release gravitational waves, as well as light. The detectors' observations are being regarded as candidates until further data can confirm them.
What are gravitational waves? 04:46On April 25, one of the LIGO detectors and the Virgo detector observed a signal suggesting a neutron star merger. It was dubbed S190425z, and scientists believe that it happened between 370 million to 640 million light-years from Earth. The previous neutron star merger detected by Virgo and LIGO, GW170817, was 130 million light-years away.
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