Nick Melosh, Stanford University (IMAGE) Stanford University Caption Nick Melosh, assistant professor of materials science and engineering, stands beside the ultra-high vacuum chamber used in the tests that proved the PETE process works. Credit Linda Cicero, Stanford University News Service 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.