Peter Schultz, Brendan Hermalyn, Brown University (image) Brown University Share Print E-Mail Caption Peter Schultz and graduate student Brendan Hermalyn analyzed data from bits of the Moon's surface kicked up by a NASA-engineered collision. They found unexpected complexity -- and traces of silver. Credit Mike Cohea/Brown University Usage Restrictions None Share Print E-Mail 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.