If the 20th century was the age of plastics, the 21st century seems set to become the age of graphene, a recently discovered material made from honeycomb sheets of carbon just one atom thick. Science journals have been running out of superlatives for this wondrous stuff: it's just about the lightest, strongest, thinnest, best heat and electricity conducting material ever discovered. And if we're to believe the hype, it promises to revolutionize everything from computing to car tires and solar cells to smoke detectors. What is this strange and remarkable new stuff? Let's take a closer look!