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Horizon

2010-2011

Episode 6: Asteroids - The Good, the Bad and the Ugly

Duration: 1 hour

on BBC Four HD

Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing how they are responsible for both life and death on our planet. 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.