Glass Particles (IMAGE) Rutgers University Caption These are glass particles colliding in microgravity. Credit Gerhard Wurm, Tobias Steinpilz, Jens Teiser and Felix Jungmann 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.