Meet the Expert: Dr. Sarah D’Souza, the Orion Thermal Protection Deputy System Manager at NASA Ames Dr. Sarah D’Souza is currently the Orion Thermal Protection System (TPS) Deputy System Manager at NASA Ames Research Center which is part of NASA’s Artemis program. Dr. D’Souza is a California native with a passion for all things aerospace and a proud graduate of the… Continue Reading Episode 158: Why Does a Spacecraft Need a Heat Shield?