Dr. Bernard A. Harris Jr. (IMAGE) University of Houston Caption A University of Houston alumnus and the first African American to walk in space, Bernard Harris is a former NASA astronaut and served as chief medical officer and payload commander during his tenure. Credit Courtesy of NASA Usage Restrictions None 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.