Extended Data Fig. 9: Examples of in-situ boulder fragmentation on Bennu.
From: Fine-regolith production on asteroids controlled by rock porosity

a, a 5.4 m-diameter boulder located at 22° N 157° E. b, a 5.6 m-diameter boulder located at 42° N 170° E. c, a 5.3 m-diameter boulder located at 57° N 304° E. d, a 5 m-diameter boulder located at 39° S 203° E. The images are from the global mosaic32 acquired by the PolyCam33 imager of OCAMS. Credit for PolyCam images: NASA/Goddard/University of Arizona.