Complex patterns of lunar wheel prototype (IMAGE) DOE/Oak Ridge National Laboratory Caption Additive manufacturing allows fine design details, such as wavy tread on a domed shape, to be incorporated into the prototype lunar wheel. Credit Carlos Jones/ORNL, U.S. Dept. of Energy Usage Restrictions None License Original 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.