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
PhysicsThe physicist who argues that there are no objective laws of physics Daniele Oriti’s pursuit of a theory of quantum gravity has led him to the startling conclusion that the laws of nature don’t exist independently of us – a perspective shift that could yield fresh breakthroughs Features