6/10 How views of the world were challenged by astronomer Galileo's ideas and the first man in space, Yuri Gagarin. (AD)
Yuri Gagarin: Starman tomorrow at 7pm

With Kirsty Lang.
Then Weather

To celebrate his 70th birthday, the acclaimed pianist takes a personal journey through the landscapes of 1950s Paris to trace the evolution of his distinctive style. It's followed by a special birthday concert with Benoit Dunoyer de Segonzac and Andre Arpino, with music by Bach, Satie and Debussy, including Bach's Air on a G String, Prelude in C and Toccata and Fugue in D minor. Narrated by Geoffrey Bateman.

Britain was, briefly, the unlikely player in the field of rocket research. Time Shift tells the story of unsung pioneers of space exploration: the rocket engineers, the scientists and, ultimately, the dreamers who never gave up on a vision of bringing the future into the present. Interviewees include Professor Colin Pillinger, lead scientist of Beagle 2.

The British Space Race 10.00pm BBC4
This excellent Time Shift documentary shows how Britain's rocket scientists were poised to enter the satellite age when the Government pulled the plug. With superb archive material, it tells the entire history of Britain's involvement in space, right up to the failure of the Mars landing probe, Beagle 2, last Christmas. (Geoff Ellis)

The extraordinary yet true account of a secret US government-backed attempt to build a spaceship the size of an ocean liner and send it to Mars, Jupiter and Saturn, propelled by thousands of miniature nuclear bombs.

1.20 as 10.40pm