In 1997, the Canadian Astronomical Society invited him to give the Robert M. Petrie Prize Lecture for his significant contributions to astrophysical research. He was also invited to give the 42nd Oppenheimer Memorial Lecture in 2012. He was recognized in the 2007 Gruber Cosmology Prize for his work with then Miller Postdoctoral Fellow Adam G. Riess and for his highly specialized contributions in measurement of the apparent brightness of distant supernovae, which accurately established the distances that support the conclusion of an increasingly rapid expansion of the universe.
In 1997, the Canadian Astronomical Society honored him with the Robert M. Petrie Prize Lecture for his substantial contributions to astrophysical research. In 2012, he was invited to give the 42nd Oppenheimer Memorial Lecture. He received the Gruber Cosmology Prize in 2007 for his work with Adam G. Riess and his specialized measurements of distant supernovae that supported a rapidly expanding universe.