Tess Science (2 of 2) (IMAGE) DOE/Argonne National Laboratory Caption This is a magnified view of the application-specific phase change material incorporated into TESS?'s high-thermal-conductivity porous foam. Credit Argonne National Laboratory 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.