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 invited him to deliver the Robert M. Petrie Prize Lecture due to his substantial contributions to astrophysical research. He was also asked to present the 42nd Oppenheimer Memorial Lecture in 2012. In 2007, he received the Gruber Cosmology Prize for his collaborative work with then Miller Postdoctoral Fellow Adam G. Riess and for his specialized contributions in measuring the apparent brightness of distant supernovae, which accurately determined the distances that supported a rapidly expanding universe.