errr... this isn't quite right. We know that many (most ?) asteroids are largely solid. It's maybe also true that their surfaces are covered with gravel.https://twitter.com/cuddigan/status/1182344306180247553 …
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Replying to @MorlockP
Would like to see that data if I missed it, most of what I keep seeing suggests that rubble piles are the majority unless the object is really big (> 10km) or really small -https://arxiv.org/abs/1810.01815
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Replying to @cuddigan
don't have links handy at the second, but looking at the abstract of this (thanks!) makes me think that actually we don't disagree - my reading has mostly been on largest bodies. Great info, TY!
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Replying to @MorlockP
This stuff is fascinating! If you have cool resources for me, definitely send it my way :D
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Replying to @cuddigan
my investigations are quite scattershot and very weird motivated - writing science fiction novels, so I end up doing searches like "retrograde orbits" and "binary Trojan asteroids", then skipping sideways from there...
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Replying to @MorlockP
Those sound like fun jumping off points! As a game developer, I'm constantly wondering what it would be like to stand / maneuver on the surface of some of these weirder bodies. What would gravity on a contact binary be like?
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very very VERY low, as it turns out!
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