Supersonic Jets (IMAGE) American Physical Society Caption Supersonic jets fired from 7 plasma guns collide in PLX test firings. In addition to debugging the machine, the experiments provide data to verify models of colliding plasmas important for astrophysics, aeronautics, and various controlled fusion schemes. Credit Los Alamos National Laboratory Usage Restrictions Use with appropriate credit. 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.