Meltwater (IMAGE) NASA/Goddard Space Flight Center Caption Meltwater in crevasses in southern Greenland, as seen during Operation IceBridge's last flight of the 2017 Arctic campaign, on May 11, 2017. Credit Credit: NASA/John Sonntag 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.