Karen Masters

Karen Masters is a Professor of Astronomy and Physics at Haverford College. Her research focuses on extragalactic astronomy, specifically galaxy formation and evolution, including the morphological classification of galaxies, star formation, and the role of bars and spiral structures in shaping galactic properties. She is a leading figure in citizen-science projects like Galaxy Zoo and utilizes large surveys such as SDSS-IV MaNGA and JWST. Her recent work has traced the emergence of the Hubble sequence at high redshift and measured bar fractions in galaxies up to z ∼ 4.0, providing new constraints on galaxy evolution models.