Astrophysicists are looking everywhere — inside the Large Hadron Collider, in deep mines and far out into space — for evidence of dark matter, which makes up about 25 percent of the energy density of the universe.
Astrophysicists are looking everywhere — inside the Large Hadron Collider, in deep mines and far out into space — for evidence of dark matter, which makes up about 25 percent of the energy density of the universe.