One of the perplexing questions people ask in the origin of Life
is how did such complexity ever evolve from a simple broth of
chemicals in the prebiotic world. The first person to ever
attempt to try to answer it was Harold Urey and Stanley Miller
who created a chemical soup of ammonia (reduced Nitrogen),
methane (reduced C), and hydrogen (should be present in a
reduced atmosphere) and subjected the soup to electric discharge
(simulating lightning and solar radiation). This experiment was
performed in the 1950s and was done to simulate early Earth
condition. After this electric discharge passed through the
soup, simple amino acids and sugars and the raw materials for
nucleic acid bases such as adenine were found to be created in
this mixture . These are all the raw ingredients for
biochemistry to start hence bringing evolution of the origin of
life into the realm of experimental science for the first time.
Even though, the conditions of early Earth have come into
question since then, Urey and Miller deserved