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Physical Analysis of Bennu Samples Reveals Regolith Production by Collisional Disruption on Near-Earth Asteroids

  • Authors: R.-L. Ballouz, A. J. Ryan, R. J. Macke, O. S. Barnouin, M. Lê, J. Moreno, S. Eckley, L. Hanton, A. Hildebrand, V. Toy-Edens, R. M. Meier, M. Berkson, E. Asphaug, S. Cambioni, C. G. Hoover, K. Jardine, E.R. Jawin, N. Lunning, J. L. Molaro, M. Pajola, K. Righter, K. T. Ramesh, F. Tusberti, K. J. Walsh, C. W. V. Wolner, D. N. DellaGiustina, H. C. Connolly, D. S. Lauretta

R.-L. Ballouz et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 5.

Morphological and XCT (∼5–10 μm/voxel) details of prominent craters on centimeter-scale Bennu samples. (a) Four profiles through crater 1 (Figure 3(a)) on OREX-800047–0. (b) XCT slice of crater 1, showing radial fractures (magenta arrows) and increased X-ray attenuation near the crater floor. (c) Four profiles of crater 2 (Figure 3(d)) on OREX-800067-0. The bulbous end of the crater is most apparent in the magenta profile. (d) XCT slice of crater 2. (e) Four profiles of crater 3 (Figure 3(e)) on OREX-800027-0. (f) XCT slice of crater 3, showing linear fractures (magenta arrows) from the crater in its vicinity.

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