Description
The interaction between cosmology and particle physics has always been very fruitful. Cosmological observations provide a powerful mean to test particle physics theories, and to measure the properties of existing particles like neutrinos. At the same time, the solution to two long-standing mysteries in cosmology - the origin of dark matter and dark energy - might lie in physics beyond the standard model of particles. In my talk I will review what we have learned from cosmological observations of the recent past, especially Planck's, on light relics (including neutrinos) and dark matter, and discuss prospects for future experiments.
