Stanley Miller

Stanley Miller was a scientist who, in the 1950s, conducted an experiment to understand how life’s building blocks could have formed on early Earth. He simulated ancient Earth’s conditions by mixing water, methane, ammonia, and hydrogen, then applying electrical sparks to mimic lightning. After a week, he discovered complex organic molecules, including amino acids, which are essential for life. His work provided key evidence supporting the idea that life’s basic components could originate from inorganic substances under prebiotic conditions, advancing our understanding of the chemical origins of life on Earth.