|The lightning origin of life theory postulates that billions of years ago a lightning bolt (or intense period of electrical activity) hit a warm pond or primordial soup and thus triggered, sparked, or activated the first reactions of life, or something along these lines.|
The lightning origin of life theory seems to have been first put forward by English naturalist Charles Darwin in 1871 as follows: 
“The original spark of life may have begun in a warm little pond, with all sorts of ammonia and phosphoric salts, lights, heat, electricity, etc. present, so that a protein compound was chemically formed ready to undergo still more complex changes.”
The 1952 Miller-Urey experiment famously tested this theory, the results of which showed that sparks ignited in a chemical broth, over several days, could make amino acids.
● Meteoroid origin of life theory
● No origin of life theory
● Defunct theory of life
1. Darwin, Charles. (1871). “Letter to Joseph Hooker”, in: The Life and Letters of Charles Darwin, Including an Autobiographical Chapter, Vol 3. (pg. 18). John Murray.