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 https://t.co/OrOj5yxEkx

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 https://t.co/OrOj5yxEkx (via Twitter http://twitter.com/CNN/status/1124271910379053057)