Nicolas Dauphas, University of Chicago (IMAGE) University of Chicago Caption Nicolas Dauphas, UChicago associate professor in geophysical sciences, holds vials of material collected from the moon during the Apollo 14 mission. He and graduate student Junjun Zhang also worked with samples from the Apollo 15, 16 and 17 lunar missions in their new study on the origin of the moon. Credit Lloyd DeGrane Usage Restrictions News organizations may use this image in connection with reports about the research of Nicolas Dauphas and Junjun Zhang. 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.