(CNN) — Ever since it was discovered in 2004, graphene has been hailed as a natural wonder of the materials world destined to transform our lives in the 21 st century. Graphene’s amazing properties excite and confound in equal measure. How can something one million times thinner than a human hair be 300 times stronger than steel and 1, 000 times more conductive than silicon? CNN Labs asked the head of MIT’s graphene research department, Tomas Palacios, to explain why graphene is such a special material and what we can expect it to do for us in the future.