NASA's Webb Telescope's 'Deployable Tower Assembly' (IMAGE) NASA/Goddard Space Flight Center Caption Recently, engineers at Northrop Grumman Corporation in Redondo Beach, Calif., were testing the DTA to ensure it worked properly. Credit Northrop Grumman Corp. 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.