Meet the Speakers

Sean Carroll is a theoretical physicist at the California Institute of Technology. His research covers cosmology, field theory, dark energy, particle physics, and gravitation. Carroll is the author of The Particle at the End of the Universe, for which he won the Royal Society Winton Prize for Science Books. He also wrote From Eternity to Here, which focuses on the flow of time and the origin of the universe. A regular blogger and public speaker, Carroll has appeared on The Colbert Report and Through the Wormhole with Morgan Freeman.Josh Frieman is a senior staff scientist at the Fermi National Accelerator Laboratory and Professor of Astronomy and Astrophysics. He’s also a member of the Kavli Institute for Cosmological Physics at the University of Chicago. Frieman’s research focuses on cosmology, including the study of dark energy and dark matter, the large-scale structure of the universe, supernovae, and gravitational lensing.Frieman is currently director of the Dark Energy Survey — a five-year survey of 300 million galaxies, exploring why the universe is speeding up.Priyamvada Natarajan is a professor in the Departments of Astronomy and Physics at Yale University. Natarajan’s research is focused on exotica in the universe — dark matter, dark energy, and black holes. She is noted for her key contributions to two of the most challenging problems in cosmology — mapping the distribution of dark matter and tracing the growth history of black holes.Her work using gravitational lensing has provided a deeper understanding of the granularity of dark matter in clusters of galaxies and offers a novel way to unravel the nature of dark matter.Brian Schmidt is a Nobel Laureate and Distinguished Professor at The Australian National University (ANU).  Schmidt recently was appointed as the 12th Vice Chancellor of the ANU.  He is a Fellow of the Australian Academy of Science, The United States Academy of Science, and the Royal Society. He was made a Companion of the Order of Australia in 2013.Under his leadership, the HighZ Supernova Search team made the startling discovery that the expansion rate of the Universe is accelerating. This work earned him the 2011 Nobel Prize in Physics.”Robyn Williams is a science journalist and broadcaster resident in Australia who has hosted the Science Show on the Australian Broadcasting Corporation since 1975, Ockham's Razor (created 1984) and In Conversation (created 1997).