Astroparticle physics of neutrinos: Physics Nobel 2015 and beyond

Neutrinos with energies ranging from meV to EeV pervade the universe, and play crucial roles in astrophysics and cosmology. Observations of astrophysical neutrinos over the last fifty years have also revolutionized our understanding of particle physics, with neutrino oscillations giving us the first confirmed evidence for particle physics beyond the Standard Model. Indeed the Physics Nobel Prize 2015 was awarded for the experiments that showed that neutrinos produced in the Sun's core and in the Earth's atmosphere oscillate and hence have nonzero mass. In this talk, I shall summarize the journey of neutrinos so far, and describe how future observations of these elusive particles will enrich our knowledge of particle physics,astrophysics, and cosmology.