EarthDark matter secrets could lie buried in ancient rocks on EarthFossil traces hidden deep underground may solve the mystery of dark matter, the elusive substance that makes up 80 per cent of the universeFeatures
PhysicsParticles crossing to our world could open portal to dark-matter realm We've identified particles that could secretly cross from the regular world to the shadowy realm of dark matter. Now we just need to catch them in the act Features