Electron microscope spots hydrogen atoms resting on invisible carbon sheet. The smallest of atoms can now be seen sitting in splendid isolation with a standard transmission electron microscope, thanks to the most fashionable form of carbon, graphene. The technique, developed by scientists at the University of California, Berkeley, and the Lawrence Berkeley National Laboratory, California, could help to produce images of individual molecules in atomic detail using relatively conventional laboratory kit. The research is reported in this week's Nature1. A transmission electron microscope (TEM) works by firing a beam of electrons through a very thin sample supported by a scaffold....