UT's Kristian Chan on an Antarctic Survey (IMAGE) University of Texas at Austin Caption Kristian Chan, a graduate student at The University of Texas at Austin Jackson School of Geosciences, operating an ice-penetrating radar during an aerial survey of an Antarctic ice sheet. Chan developed a technique that boosts the radar’s normally low resolution, allowing it to image hidden features in the ice sheet’s upper layers. Credit University of Texas Institute for Geophysics/Jamin Greenbaum Usage Restrictions Please use credit. License Original 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.