Nobel Laureate and physicist Adam Riess and Brian Greene discuss the paradigm-shattering discovery that the expansion of the universe is accelerating, the role of dark energy, and more. This program is part of the Big Ideas series, supported by the John Templeton Foundation. Live Sessions are conversations hosted by Brian Greene with world-renowned scientists, including World Science U faculty exploring matter, mind, and the cosmos. Official Site: https://www.worldsciencefestival.com/ Twitter: https://twitter.com/WorldSciFest Facebook: https://www.facebook.com/worldscience... Instagram: https://www.instagram.com/WorldSciFest/ #science #WorldScienceFestival