Astronomers Develop Breakthrough Optical Component (image) University of Montreal Share Print E-Mail Caption This is a double image of the star Eta Crucis taken through the vector-APP coronagraph installed at MagAO. The two main images of the star exhibit D-shaped dark holes on complementary sides. Credit Leiden University, University of Arizona Usage Restrictions Credit source 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.