Antarctic Ice (IMAGE) NASA/Goddard Space Flight Center Caption As ICESat-2 orbited over Antarctica, it took height measurements over the steep Queen Maud Mountains - some of which had never been previously measured. Over the Ross Ice Shelf, the photon return data showed a mostly flat surface, broken by terrain including the Crary Ice Rise. Credit NASA Earth Observatory/Joshua Stevens 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.