Borehole Camera (image) University of Texas at Austin Share Print E-Mail Caption A camera used to image the structure of glacier ice is lowered into the borehole by a winch. The instrument is encased in a plastic cage to keep it stable as it is lowered 600 meters to the bed of the ice sheet. Credit Lauren Andrews Usage Restrictions Photo credit required Share Print E-Mail 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.