Milton Working (IMAGE) University of Utah Caption Ross Milton works in the glove box that keep nitrogenase in an oxygen-free environment. Credit Paul Gabrielsen/University of Utah Usage Restrictions Credit Paul Gabrielsen/University of Utah 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.