Using data from NASA OSIRIS-REx mission, scientists concluded that asteroids with highly porous rocks, such as Bennu, should lack fine-grained material on their surfaces.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/10/211006160046.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/10/211006160046.htm
Highly porous rocks responsible for Bennu's surprisingly craggy surface
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October 07, 2021
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