5. The Sun and the Earth (1976)

The Sun sends us its light and heat, but it has many other effects on the earth too. It raises tides; it produces the lovely Polar lights; it has long-term effects on plant growth - and its variations may even cause ice ages. Patrick Moore and Dr Ron Maddison of Keele University discuss some of these lesser-known effects of the Sun on the Earth.

Release date: 1976-05-20