Carolin Frueh portrait (IMAGE) Purdue University Caption Purdue University engineer Carolin Frueh studies how parts of satellites, such as the shimmering multilayer insulation materials in this photo, tend to come off over time and become space debris. Credit Purdue University image/John Underwood Usage Restrictions No restrictions. License Public Domain 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.