TV Time - Season 1 Episode 4 : Cosmic Time Time - Season 1 Episode 4 : Cosmic Time 8/10 by 1 users Throughout history, one thing has never changed - time. It is something we rely on to plan our lives, and it is consistent, regular and ceaseless. But is it? High in the Alps, Michio encounters a mystery - tiny particles called muons which shouldn't exist. They don't last long enough to be detected on Earth - and yet here they are. The answer to this mystery lies in one of the greatest discoveries of all time - Einstein's theory of relativity. The faster you travel, the slower time ticks. So time is not fixed at all. Details Casts Posters Images Title Time - Season 1 Episode 4 : Cosmic Time Alternative Titles BBC4 - Time First Air Date 2006-02-26 Last Air Date 2006-03-19 Number of Episodes 4 Number of Seasons 1 Genres Documentary, Networks BBC Four, Casts Michio Kaku Plot Keywords , Himself - Presenter Michio Kaku Episodes List Time Season 1 :Episode 1 Day Time Day Time 2006-02-26 Time is a 2006 documentary television series first broadcast on BBC Four in the United Kingdom. It is written and presented by Michio Kaku. Time Season 1 :Episode 2 Life Time Life Time 2006-03-05 Time is a 2006 documentary television series first broadcast on BBC Four in the United Kingdom. It is written and presented by Michio Kaku. Time Season 1 :Episode 3 Earth Time Earth Time 2006-03-12 Time is a 2006 documentary television series first broadcast on BBC Four in the United Kingdom. It is written and presented by Michio Kaku. Time Season 1 :Episode 4 Cosmic Time Cosmic Time 2006-03-19 Time is a 2006 documentary television series first broadcast on BBC Four in the United Kingdom. It is written and presented by Michio Kaku.