I am an Assistant Professor in the Department of Astronomy and Astrophysics at the University of Chicago. I use Near Field Cosmology to study the first stars and galaxies.

Apr 2026: we have found the most metal poor star currently known! See Outreach/News for more information.

Jan 2026: I have started as the Deputy Project Scientist for SDSS-V.

Feb 2025: I have been awarded a Sloan Research Fellowship and LSST Scialog Award.

Jan 2024: we have discovered a star of spectacular chemical composition in SDSS-V! See Outreach/News for more information.