Sir Harry Kroto won the Nobel Prize for discovering the soccer-ball-shaped fullerenes, strangely-structured carbon molecules also known as buckyballs. These molecules led to the development of carbon nanotubes and the burgeoning field of nanoscience. But young chemists Stephanie Benight and Maher El-Kady want to know how we can use buckyballs in the future, and whether we should be worried by some aspects of these new nano-scale technologies.