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  1. Can we get the three-dimensional spatial distribution of dark matter through gravitational lensing?
  2. If not, is there any other way?
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1 Answer 1

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At scales much larger than individual galaxies or clusters, the most straightforward approach is to simply study the distribution of galaxies. Galaxies trace the large-scale dark matter distribution, and although they are biased tracers, that bias has been studied extensively.

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