Crowds Rally in Barcelona Ahead of Catalonia Referendum

A big rally takes place in Barcelona on the last day of campaigning ahead of Sunday's referendum. Madrid says it's illegal, but Catalan political leaders are vowing to go ahead.

Also on the programme: We hear from the 31-year-old leader of Italy's five star movement on whether he is too young to be considered as the country's new leader; and how realistic are Elon Musk's latest plans to go to Mars in 2024?

(Photo: Pro-independence flags hang on balconies in Barcelona, Spain. Credit: Getty)