Why do we live in a universe that is made of matter? What is the mysterious “stuff” that composes more than one-quarter of the universe? What is driving the universe to expand faster and faster? What happened in the very earliest instants after the Big Bang? In this moderated panel discussion, three of the world’s pre-eminent particle physicists will discuss and debate the “big questions” that remain unexplained today regarding the origin, nature and ultimate fate of the universe. Scientific curiosity is one of the human race’s most important qualities, and this is your chance to meet some of the most prominent people working to answer the cosmic riddles that have puzzled scientists for decades.