The Nanograph and the Pulsar Timing Arrays

Nanograph is a different experiment from LIGO and it uses a totally different technology and method. The idea is that they're using pulsars to detect kind of how the whole galaxy reacts to a gravitational wave. These pulsars are really cool fascinating end point of stars. You have stars out there that are burning bright and turning their fuel into light then eventually they collapse with like a type 2 supernova. They leave behind this very very dense object a neutron star which is something that has like a 10 kilometer radius but weighs as much as our sun.