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. #WorldSciU This program is part of the Big Ideas Series, which is supported, in part, by the John Templeton Foundation. WSU Live Sessions are conversations hosted by Brian Greene with World Science U faculty exploring matter, mind, and the cosmos. Subscribe to our WSU newsletter for updates and information on future Live Sessions: http://eepurl.com/U3qzT To take full courses, visit our website: http://www.worldscienceu.com/. Subscribe to the WSU YouTube Channel for all the latest from World Science U.Learn More