PhysicsMetallic hydrogen finally made in lab at mind-boggling pressure Diamonds, low temperatures and pressures way above what's found at Earth's centre were used to create a form of hydrogen foreseen back in the 1930s News
EarthThird-ever natural quasicrystal found in Siberian meteorite A tiny grain of metallic rock from a meteorite found in north-eastern Russia contains a form of matter called a quasicrystal – the third one ever found in nature News