PPPL Image for APS-DPP Story (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption Schematic of fast ions (black spirals) interacting with plasma waves (color) in a fusion experiment. The theoretical methods used to study fast ions in plasmas have also been used to describe the dynamics governing the evolution of galaxies. Credit Photo courtesy of Steve Allen, a physicist at the DOE's Lawrence Livermore National Laboratory, and adapted by Mike Van Zeeland, a physicist at General Atomics Usage Restrictions N/A 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.