What Gravitational Waves Can Say About Dark Matter
Now that observatories have begun to record gravitational waves on a regular basis, scientists are discussing how dark matter—only known so far to interact with other matter only through gravity—might create gravitational waves strong enough to be found. Since that first detection, the LIGO collaboration—together with the collaboration that runs a partner gravitational-wave observatory called Virgo—has detected gravitational waves from at least 10 more mergers of black holes and, in 2017, the first merger between two neutron stars. By using gravitational waves to learn about the properties of black holes, LIGO might be able to prove or constrain this dark matter theory.
Source: www.symmetrymagazine.org