HumansIntricate ancient tattoos revealed by shining lasers on mummies The tattoos of 1200-year-old mummies from Peru can now be seen in exquisite detail, showing fine markings that may have been made with cactus needles or animal bones ¿ìè¶ÌÊÓÆµ
PhysicsUltracold indium atoms could make unexpected new types of matter For the first time, atoms of the metal indium have been chilled to temperatures a few millionths of a degree above absolute zero, a state where strange quantum phenomena begin to appear ¿ìè¶ÌÊÓÆµ