All living matter on our planet, from the smallest to the largest, is derived from a single common ancestor. What was that ancestor? Did it really emerge from a primordial soup? And what, in the explanation of evolutionary science, provided the catalyst to start turning the cycle of life? This radio broadcast explores these questions and discusses: the definition of life; the Stanley Miller experiment, which passed an electric discharge through gases to create an organic synthesis; and the steps needed to create life, including the first self-replicating molecule, formation of the first cell membrane, the fusion of prokaryotic cells into the first eukaryotic cells, and the jump to multicellularity. The site also contains an origin of life clock, which displays a timescale of key events in the development of life on Earth. The broadcast is 42 minutes in length.