Next Generation Lunar Retroreflector Next to Apollo Era Version (image) University of Maryland Share Print E-Mail Caption (L) Next Generation Lunar Retroreflector (NGLR) next to (R) Apollo era version. Background CD provides size reference. Credit Doug Currie, University of Maryland Usage Restrictions Credit must be given for all uses. 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.