A tiny crystal device could boost gravitational wave detectors to reveal the birth cries of black holes

In 2017, astronomers witnessed the birth of a black hole for the first time. Gravitational wave detectors picked up the ripples in spacetime caused by two neutron stars colliding to form the black hole, and other telescopes then observed the resulting explosion.

source https://phys.org/news/2021-02-tiny-crystal-device-boost-gravitational.html