"crashing" back down?
The difference between orbital velocity and spin at the equator is under 2cm/s.
Speckles of dirt kicked up from Bennu’s surface can stay suspended in space and sometimes they even orbit the asteroid, only to come crashing back down onto its equator, giving it its spinning-top or diamond-like shape. The phenomenon was spotted last year. Scientists studying images of Bennu snapped by NASA’s OSIRIS-REx …
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And here I was hoping they had found a giant Space-Wombat and that Bennu is its poo:
(All together now:
"It's life, Jim, but not as we know it.")
(I'll get my coat, its the one with the Star Trek communicator badge.)
Interesting. Both as an explanation of the asteroid shape, but it also has personal ramifications. The mirror shows a thinning of material from my northern pole, and I've noticed a similar accumulation of material resulting in a bulging out around my equator, particularly in recent months since I'm at home much more often. I'm relieved to know this is just down to solar radiation and my microgravity environment.