Graduate student Tyler Kelley, part of the UC Irvine Cosmology Center, led the run and analysis the highest resolution simulations of galaxy formation around our own Milky Way galaxy, showing that a long unsolved problem of why there are not more galaxies around our Milky Way Galaxy. Now, there are a bit too few galaxies, suggesting that our understanding of how galaxies get built is still somewhat incomplete. This result was presented in this paper, and covered by Quanta Magazine.
