Asteroid Bennu (IMAGE) Southwest Research Institute Caption A recent SwRI-led study provided new insights into the surface and structure of asteroid Bennu. NASA’s OSIRIS-REx spacecraft data indicate nearly twice the void space near its surface in comparison to the overall body. Credit NASA/Goddard/University of Arizona Usage Restrictions No restrictions. License Public Domain 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.