A Productive Collision (video) Brown University Loading video... 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 and Richard Lewis, Brown University Usage Restrictions None 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.