1/7 At the North Pole, the sun returns after six months of darkness. (R)
3/4 Iolo Williams shines a spotlight on his favoutrite Welsh landscapes and wildlife. (R)
1/6 Dara O Briain and Professor Brian look at the mysteries of the moon.
2/6 Professor Brian Cox, Dara O Briain and guests debate all things astronomical.
1/6 Dara O Briain and Professor Brian look at the mysteries of the moon. (R)
2/7 Spring arrives in the polar regions, and the sun appears after an absence of five months. (R)
Tuesday 17 January 2012