PPPL physicist Andrew Alt (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption PPPL physicist Andrew Alt in front of an image of the sun Credit Composite image by Elle Starkman / Solar image by NASA Goddard Media Studios Usage Restrictions None 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.