> The weird thing about it though is that whatever the dark matter is it has to be spread out.
In fact, they'd have to be so spread out that rotation curves remain flat past a million light years [1]. There seems to be no plausible particle dark matter distribution that can satisfy all of the necessary constraints at this point.
In fact, they'd have to be so spread out that rotation curves remain flat past a million light years [1]. There seems to be no plausible particle dark matter distribution that can satisfy all of the necessary constraints at this point.
[1] https://tritonstation.com/2024/06/18/rotation-curves-still-f...