World's most sensitive dark matter detector set up in old gold mine in Lead, SD

"If we find it, it's going to be a much bigger shift in our understanding of physics."

"Dark matter, meanwhile, is elusive matter that scientists believe makes up about 25 percent of the universe. They know it's there by its gravitational pull, but unlike regular matter and antimatter, it's so far undetectable. By discovering dark matter, scientists could explain why the universe isn't made up equally of matter and antimatter. That, in turn, could explain how the world as we know it came to be."