On Dec. 2 at a range of 15 miles (24 km), PolyCam snapped this image showing three different boulder features on Bennu, each circled in white and then magnified. 📸 🔍Their widths are about 52 feet (16 m), 115 feet (35 m), and 102 feet (31 m), respectively. #WelcomeToBennu #AGU18 pic.twitter.com/80XgulZiT1

— NASA's OSIRIS-REx (@OSIRISREx) December 10, 2018