I present recent results from the FIRE (Feedback in Realistic Environments) project, which focuses on simulating galactic evolution in cosmological contexts with physically-motivated prescriptions for the interactions between gas and stars on parsec scales. The simulations, which are presently the highest resolution of their kind in the field, therefore trace the evolution of structure for thirteen billion years while resolving a dynamic range of over a million in length. I show that the FIRE prescriptions self-consistently reproduce galaxy properties over many orders of magnitude in stellar mass. Thus, the FIRE simulations suggest that the usual "small-scale" problems identified in gravity-only simulations within the standard paradigm are explained by known, standard model physics. I additionally present preliminary results from the in-progress "Triple Latte" run, which will provide predictions for the number and properties of the least luminous and most dark matter-dominated galaxies in the Universe, ultra-faint dwarfs, by resolving the Milky Way with over a billion particles.
