My research focuses on the origin and evolution of dwarf galaxies with the goal of using these objects to answer fundamental questions in astrophysics and cosmology. I am co-PI of the SAGA Survey.

As an observational astronomer, I am primarily interested in the formation, evolution and destruction of dwarf galaxies. My current work includes observations of ultra-faint galaxies recently discovered in the Local Group. These objects are the least-massive and most dark-matter dominated galaxies in the known Universe, providing significant constraints on both galaxy formation processes and cosmology.

Dwarf galaxies are the dominate type of galaxy in the Universe by number. Dwarf galaxies are less luminous and more dark-matter dominated as compared to our Milky Way, providing significant constraints on galaxy formation processes, cosmology and the nature of dark matter. We are focused on understanding dwarf galaxies around our Milky Way, Local Group and nearby Universe.