Patrick Hartigan (IMAGE) Rice University Caption Patrick Hartigan is a professor of physics and astronomy at Rice University. Credit Image courtesy of P. Hartigan Usage Restrictions Must credit: "Image courtesy of P. Hartigan" 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.