Gravitational waves may be responsible for dark matter in the universe

Gravitational waves may be responsible for dark matter in the universe

Dark matter is thought to exist everywhere, wrapping around galaxies and helping to shape the largest things in the universe. But nobody knows what it is made of. Now, a new theoretical study presents a surprisingly unique situation that could provide some of the missing puzzle pieces. Some of the dark matter may have originated from ancient gravitational waves. These waves travelled through the early universe before stars or galaxies had formed…