Tess Science (1 of 2) (IMAGE) DOE/Argonne National Laboratory Caption This shows a magnified view of the high-thermal-conductivity foam used in Argonne's TESS thermal battery. 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.