PhysicsThe universe could vanish at any moment – why hasn’t it? A cataclysmic quantum fluctuation could wipe out everything at any moment. The fact that we’re still here is revealing hidden cosmic realities Features
PhysicsWe've seen particles that are massless only when moving one direction Inside a hunk of a material called a semimetal, scientists have uncovered signatures of bizarre particles that sometimes move like they have no mass, but at other times move just like a very massive particle 51¶¯Âþ