Mach wave (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This computer simulation shows a supersonic Mach wave as it evolves in an expanding quark-gluon plasma. Credit Berkeley Lab Usage Restrictions Credit Berkeley Lab 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.