CORK Explainer (IMAGE) University of Southern California Caption This news graphic shows the innovative technology that allowed the scientists to collect samples of water from an aquifer two miles below the ocean without contaminating the samples with ocean water. Credit Courtesy of USC Usage Restrictions For news stories only 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.