4. Suns, Space-Ships and Bug-Eyed Monsters

Ever since the days of Jules Verne and H. G. Wells, science fiction and space exploration have been closely linked, and over the last 100 years science fiction has often become science fact. Patrick Moore talks to Arthur C. Clarke, the science fiction writer, who describes himself as an armchair astronaut, and Michael Bentine, best known as a humorist, but who is also a serious and dedicated scientist.