Researchers want to use gravitational waves to learn about dark matter | Digital Trends

When two sufficiently massive objects collide — such as when two black holes merge — the forces can actually bend space-time, creating ripples called gravitational waves. These gravitational waves can be detected even from millions of light-years away, making them a way to learn about distant, dramatic events in far-off parts of the universe. And now, a team of astronomers has come up with a method for using gravitational waves to study the mysterious phenomenon of dark matter.

Scientists know that dark matter doesn’t interact with light, but some people think that it could interact with a type of particle called a neutrino. That means that neutrino collisions could prevent dark matter from forming into the structures which are the basis for galaxies, so these particles could stop galaxies from forming. If we could find these “missing” galaxies, that would support the idea that dark matter can be affected by neutrinos.

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