Sir Ranulph Fiennes eyes new polar challenge

Sir Ranulph Fiennes has already visited the North and South Pole but now he plans to go one step further, by being the first person to reach the South Pole during Winter.

At the age of 68 he will have to walk across the whole of the antarctic in round the clock darkness and temperatures of -70 centigrade.

Our Science Editor, Lawrence McGinty reports on the explorer, hoping for another entry in the history books.