Northern Arizona University Researchers (IMAGE) Northern Arizona University Caption Northern Arizona University biochemist Diane Stearns, top, working with student researchers like Hertha Woody, has discovered that uranium damages DNA as a heavy metal, independent of its radioactive properties. Credit Photo by Jerry Foreman Usage Restrictions Must include caption and photo credit 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.