Neutron stars live interesting and mysterious lives: from the moment they are created in core-collapse supernovae, to the moment some of them eventually collapse to black-holes. In this talk, I will cover some aspects of their lives. I will discuss their birth in core-collapse supernovae, focusing on the key role of hydrodynamic turbulence in triggering the explosion, and their death in neutron star mergers. Finally, I will present recent results on the outcome of the dynamical ejection of neutron-star matter that might take place during mergers.