String field theory pioneer Michio Kaku hosts this fascinating look at the cosmic landscape and its relationship to time. The program examines time’s curious behavior on a wide range of scales—from atomic nuclei, in which particles can appear to be in two places at once, to black holes, which warp the fabric of space and squeeze time until it stands still. Demonstrating that time travel is theoretically possible, the film entertains several intriguing questions: What fate awaits stars and galaxies? If the stars eventually go out, what will happen in the dark ages that follow? Most perplexing of all—are the beginning and the end of the universe linked to the birth and death of time? Original BBC broadcast title: Cosmic Time. (50 minutes)