Astronomers Might use Pulsars to First Detect Merging Supermassive Black Holes

Astronomers have been using gravitational waves to detect merging black holes for years now, but may have to rely on pulsars – rapidly spinning neutron stars – to observe the mergers of supermassive black holes. When black holes merge, they release enormous amounts of energy in the form of ripples in the fabric of spacetime. …