New hunt for dark matter: Physicists theorize a novel way to explore the nature of dark matter with lasers

Dark matter is only known by its effect on massive astronomical bodies, but has yet to be directly observed or even identified. A theory about what dark matter might be suggests that it could be a particle called an axion and that these could be detectable with laser-based experiments that already exist. These laser experiments are gravitational-wave observatories.

Source:
https://phys.org/news/2019-09-dark-physicists-theorize-explore-nature.html