We know dark matter exists because of gravity. It makes up about 85 percent of all the matter in the Universe. But we still don’t understand it well. We don’t know what it is or where it comes from. We can’t see dark matter because it does not interact with light.
Scientists think dark matter might not have formed with regular matter during the Big Bang. Instead, it could have come later from its own “Dark Big Bang.” This idea suggests dark matter lives in a separate part of the Universe, only connected by gravity.
Research has mainly looked for weakly interacting massive particles, or WIMPs. These are the particles that might make up dark matter. However, after many years of searching, scientists have not found WIMPs.
Researchers are now exploring different ideas about dark matter. They suggest that dark matter could have formed from a special process in the dark sector of the Universe. If we can find signs, like gravitational waves, it could prove these ideas are correct.
Future experiments could help us learn more about dark matter and its origins.
