The Beginning of Chemical Evolution Experiments

In spite of the ongoing debate about the oldest morphological evidence of life, it is generally accepted by scientists that the first living beings emerged on Earth early in the history of the planet. However, our understanding of the processes that led to the emergence of life is also hindered by the lack of geological evidence of the prebiotic environment, i.e., we have no direct information on the chemical composition of the primitive atmosphere, the temperature of the planet, the pH of the primitive hydrosphere, and other conditions which may have been important for the origin of life. Hence, it is not surprising that this has led to intense debates and the formulation of different and even contradictory explanations of how life came into being.