Fusion Healing (IMAGE) DOE/Sandia National Laboratories Caption Green marks the spot where a fissure formed, then fused back together in this artistic rendering of nanoscale self-healing in metal, discovered at Sandia National Laboratories. Red arrows indicate the direction of the pulling force that unexpectedly triggered the phenomenon. Credit Dan Thompson, Sandia National Laboratories Usage Restrictions For news reporting purposes only. All other uses must receive express permission from Sandia National Laboratories 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.