2016 MacLennan Memorial Lecture: Nobel Laureate Dr. Arthur McDonald, Queen's University

How Odd: Two km underground to study the sun and the spaces between the stars

Arthur McDonald, a professor emeritus at Queen's University in Kingston, Ontario, shared the 2015 Nobel Prize in Physics with Takaaki Kajita of the University of Tokyo for discovering that particles known as neutrinos can change their identity — or “oscillate” — as they travel from the sun, shedding new light on the fundamental properties of the universe.

Only a few weeks after earning the Nobel Prize, Dr. McDonald, who was born and raised in Cape Breton, also made headlines as one of the winners of the $3-million 2016 Breakthrough Prize in Fundamental Physics.