Science Concept: Lightning = Life?
Some scientists believe that the earliest life forms arose from
nonliving materials that were struck by lightning. In 1953, University
of Chicago student Stanley Miller and his thesis advisor, Harold
Urey, designed an experiment in which they ran electric current
through a flask of “primordial soup”: water and a mixture
of gases thought to make up Earth’s early atmosphere, including
methane, ammonia, and hydrogen. What resulted was a dark fluid that
contained amino acids—the building blocks of life.
Previous Science Concept:
What Is Static Electricity?
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