LIGO–Virgo announces 'bumper crop' of gravitational-wave detections physicsworld.comWatch simulations of 38 gravitational wave events | Science News Science NewsAstronomers probe black hole origins after 39 new cosmic collisions detected msnNOWThe universe teems with weird black holes, gravitational-wave hunters find Science MagazineLIGO and Virgo’s gravitational wave tally more than quadrupled in six months Science NewsView Full Coverage on Google News