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First transmitted in 1966, Horizon reports from the spacecraft centre in Houston, Texas, about the experiences of the astronaut; how he reacts to being in space and the stresses of launching and re-entry.
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40 minutes
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Duration: 01:23
This programme is part a collection of BBC programmes specially chosen to celebrate Horizon's 50th anniversary.
Go to the BBC Four 50 Years of Horizon Collection
A collection of programmes exploring the mysteries of stars, Space and distant planets.
Exploring the mysteries of the universe and mankind's journey to the stars
Science and Tech
The Universe
A collection of Horizon programmes, celebrating 50 years of broadcasting.
A collection of programmes specially chosen to celebrate Horizon's 50th anniversary.