Academic Background: Ph.D. in Astronomy, University of Toronto, 1984; B.Sc., University of Toronto.
Research Interests: Cosmology, measurement of the Hubble constant, galaxy formation, and stellar populations.
Appointments: John and Marion Sullivan University Professor in Astronomy and Astrophysics, University of Chicago (2014–present); Director, Carnegie Observatories (2003–2015).
Awards: Gruber Cosmology Prize (2009); Magellanic Premium (2002).
Publications:
Additional Contributions: Principal investigator, Carnegie-Chicago Hubble Program; member, National Academy of Sciences.