Scanning Tunneling Microscope (image) Helmholtz Association Caption The scanning tunneling microscope makes single holmium atoms on a platinum surface visible. Credit (Photo: KIT/T. Miyamachi) Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.