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 ¿ìè¶ÌÊÓÆµ
HumansA bizarre skeleton from a Roman grave has bones from eight people Radiocarbon dating and DNA analysis have revealed that a complete skeleton found in a 2nd-century cemetery is made up of bones from many people spanning thousands of years – but we don’t know who assembled it or why ¿ìè¶ÌÊÓÆµ