<i>Archaellum</i> Image (IMAGE) University of Exeter Caption Left: 3-D view of a Pyrococcus furiosus cell obtained by electron cryo-tomograpy. Right: Composite CryoEM structure of the archaellum machinery. Credit Bertram Daum / University of Exeter Usage Restrictions Please credit as above License Licensed content 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.