New research, published in Nature and led by Saverio Cambioni, of the University of Arizona, found that Bennu’s highly porous rocks are responsible for the surface’s surprising lack of fine regolith.
Asteroid Bennu’s Surface Surprised Scientists – Here’s the Reason for the Mysterious Lack of Fine Regolith
When the spacecraft of NASA’s University of Arizona-led OSIRIS-REx asteroid sample return mission arrived at Bennu in late 2018, the mission team saw a surface covered in boulders.
Recently NASA updated its forecast of the chances that the asteroid Bennu, one of the two most hazardous known objects in our solar system, will hit Earth in the next 300 years.
OSIRIS-REx is flying home with dozens of research projects.