Bennu (IMAGE) Southwest Research Institute Caption SwRI and the University of Arizona studied centimeter- to meter-sized craters on boulders scattered around the surface of the near-Earth asteroid Bennu. This composite shows the cascading rim of an ancient crater from the time Bennu resided in the asteroid belt. The overlaid colors highlight the topography of the boulder with warmer colors indicating higher elevations. Credit University of Arizona/Johns Hopkins APL/York University Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes 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.