Status of neutrino properties and future prospects - Cosmological and
  astrophysical constraints
  Cosmological observations are a powerful probe of neutrino properties, and in
particular of their mass. In this review, we first discuss the role of
neutrinos in shaping the cosmological evolution at both the background and
perturbation level, and describe their effects on cosmological observables such
as the cosmic microwave background and the distribution of matter at large
scale. We then present the state of the art concerning the constraints on
neutrino masses from those observables, and also review the prospects for
future experiments. We also briefly discuss the prospects for determining the
neutrino hierarchy from cosmology, the complementarity with laboratory
experiments, and the constraints on neutrino properties beyond their mass.
