Wetzel et al. report on a new study using a high-resolution simulation of a Milky Way-mass dark matter halo to study the effects of baryonic physics and stellar feedback on dwarf satellites. In this paper, we show that baryonic physics alone can solve the missing satellites and “too big to fail” problems, which have previously been claimed as failures of the Lambda-CDM cosmology.

In this paper, Wetzel et al. also introduce the Latte project, as part of which we are pushing the resolution frontier by running ultra-high resolution simulations of Milky Way-mass halos. We are aiming to run a simulation with the full FIRE physics with one billion resolution elements in the next year. Stay tuned!