Drilling into Permafrost is Challenging (IMAGE) McGill University Caption Denis Lacelle of University of Ottawa (left) and Alfonso Davila of NASA/SETI (right) operate a motorized ice drill to obtain cores in ice-cemented ground in University Valley. Credit NASA/Chris McKay 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.