Ivan was joined on this evening's edition of the Hard Shoulder by arguably the UK's best known physicist.

Professor Brian Cox's books and TV programmes have been read and watched around the world and are credited with making science engaging and accessible to millions. 

He will tomorrow  headline “BT’S Nextipedia” a  full day symposium, which aims to kick start the new year with inspiring stories and valuable insights into the challenges and opportunities of Ireland’s 2050 carbon neutrality objective.

He had the unenviable task of explaining space, infinity and beyond to Ivan!