Working in front of Blood Falls (IMAGE) University of Alaska Fairbanks Caption Erin Pettit, left, and Cece Mortenson collect radar data on Taylor Glacier in front of Blood Falls. Credit Photo courtesy of Erin Pettit. Usage Restrictions Please use Photo courtesy of Erin Pettit. 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.