Rick Mastracchio, NASA (IMAGE) NASA/Johnson Space Center Caption NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to test the ultraviolet light decontamination hardware, which will be used for life science experiments inside the Microgravity Science Glovebox. Credit NASA Usage Restrictions NASA 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.