BALLOUZ , R.-L

Introduction: Images sent by the two sample-return space missions Hayabusa2 (JAXA) and OSIRIS-REx (NASA) show that asteroids Ryugu and Bennu are top shapes: oblate spheroids with a more or less pronounced equatorial bulge, also referred to as diamonds or bi-cones. Radar models of other asteroids , including binary primaries, as well as images...

Spacecraft missions have observed regolith blankets of unconsolidated subcentimetre particles on stony asteroids[1–3]. Telescopic data have suggested the presence of regolith blankets also on carbonaceous asteroids, including (101955) Bennu[4] and (162173) Ryugu[5]. However, despite observations of processes that are capable of comminuting...