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Wonders of the Solar System

Original Series

Episode 4: Dead or Alive

Duration: 58 minutes

on BBC Four HD

Professor Brian Cox travels to the tallest mountain on Earth to show how something as basic as a planet's size can make the difference between life and death. Show more

BBC Four HD

About BBC Four

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.