Gravitational wave ‘radar’ could help map the invisible universe
Such “GRADAR” signals could spot globs of dark matter or very distant neutron stars
![illustration of gravitational waves from merging black holes](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/06/061722_AS_grav-waves_feat.jpg?fit=1030%2C580&ssl=1)
Gravitational waves (visualized in this simulation radiating from a merging pair of black holes) can get redirected by massive objects, which researchers might someday leverage as a kind of gravity ‘radar’ to map the unseen denizens of the universe, a new study suggests.
NASA