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The Sky at Night

The Invisible Universe

Duration: 30 minutes

on BBC Four HD

A report on the discovery that most of the universe is missing, as scientists currently estimate that 95 per cent of everything in the universe is invisible. 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.