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Dark Matter (DM) detection requires knowledge of multiple fields in physics from particle, nuclear, and material science to astrophysics. Of these, the uncertainties or modeling of the astrophysics relevant to DM experiments are often done with less rigor or detail, which can affect our inferences on the nature of DM. Specifically, improved knowledge of the phase-space of DM in the solar neighborhood is crucial for direct detection experiments, and similarly better understanding of the phase-space of DM over the entire Milky Way (MW) volume is needed for indirect detection experiments. In this talk, I will discuss how one can build a better understanding of the MW DM phase-space starting from observations of visible matter tracers in the MW and its implications for DM searches. Time permitting, I will show the first observational irreducible cosmological scatter on the DM phase-space. |