Alex Janas, NASA (IMAGE) NASA/Goddard Space Flight Center Caption RROxiTT lead roboticist Alex Janas stands with the Oxidizer Nozzle Tool as he examines the work site. Credit NASA/Chris Gunn 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.