Evidence of Dark Matter within the Solar System?

[ImaLooser]

The idea I liked about detecting dark matter was to look for effects inside neutron stars. The gravity of the star would attract the dark matter and there are a great many neutrons there, so if the dark matter interacts weakly it should have some effect, perhaps on the viscosity.

The trouble is that this is at best a second-order effect. We would have to understand neutron star physics so precisely that deviations of the viscosity from the model would be significant, and we are a long way from that.