Melt Mineralogy (IMAGE) Brown University Caption Scientists had long assumed that large impacts on the Moon would wipe out any distinguishable mineralogy that was there before the impact. But a mineralogical feature discovered by researchers at Brown University in Copernicus crater shows that some of that mineralogy can survive. The results may force a rethinking of the cratering process. Credit NASA/Deepak Dhingra/Brown University Usage Restrictions None 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.