Mary Ann Sieghart discusses harmony and balance, in the universe and on a smaller scale. She is joined by Nobel Prize winning physicist Frank Wilczek, whose new book examines whether beauty is one of the organising principles of the universe, and by the choreographer Shobana Jeyasingh, who uses dance to explore our relationship with science and technology. The mathematician and standup comedian Matt Parker outlines things you can make and do in the fourth dimension, and the Canadian baritone opera singer and keen amateur astronomer Gerald Finley brings his perspective to bear.

Producer: Katy Hickman.