November 2013 marks the centenary of Alfred Russel Wallace (1823-1913), a man who not only developed the theory of natural selection alongside Darwin, he was also the first to scientifically explore whether it was possible for life to exist beyond Earth. One hundred years on, this podcast discovers just how much closer we are to one of mankind's ultimate goals, finding extraterrestrial life and whether the long forgotten genius of the 19th century was right all along.
Presented and produced by Graihagh Jackson.
Music by Ludovico Einaudi, Indaco; SFX thanks to NASA
But naturalists are now beginning to look beyond this, and to see that there must be some other principle regulating the infinitely varied forms of animal life.
Graihagh Jackson is a writer, sound, film and video maker currently working in London at the Institute of Art and Ideas.