Neutrinos in astrophysics and cosmology

In recent years, there have been significant advancements neutrino astrophysics and cosmology. Over the coming decade, there will be exciting new experimental and observational opportunities to push the forefront of these measurements. I will look at these opportunities through two lenses: using neutrinos as a tool to learn new astrophysics and cosmology, and also using astrophysical and cosmological observations as a tool to learn about properties of neutrinos themselves.