Our Quest to Understand the Cosmos - Brian Greene in Conversation with Jo Marchant

From a channel Lumen includes in full: The Royal Institution, home of the Christmas Lectures, posts full public lectures and demonstrations by working scientists on physics, chemistry, biology, maths and technology, with the speakers' own audience Q&A sessions.

A 66-minute video from The Royal Institution's catalogue; the title names its topic.

Video by The Royal Institution, played through YouTube's embedded player.