Michael S. Turner is the Senior Strategic Advisor at the Kavli Foundation and the Rauner Distinguished Service Professor Emeritus at the University of Chicago, where he was the Director of the Kavli Institute for Cosmological Physics. Born in Los Angeles, Turner received his B.S. from Caltech and his Ph.D. from Stanford (physics). He is a theoretical astrophysicist whose scholarly contributions include predicting cosmic acceleration and coining the term “dark energy,” showing how quantum fluctuations evolved into the seed perturbations for galaxies during cosmic inflation, and formulating several significant ideas that led to the cold dark matter theory of structure formation. Turner is a Fellow of the American Astronomical Society, the American Physical Society, the American Association for the Advancement of Science, and the American Academy of Arts and Sciences, and was elected to membership in the National Academy of Sciences in 1997 and the American Philosophical Society in 2017.