That experiment was over 60 years ago and since then similar, related experiments based on different assumptions regarding the early Earth have produce similar results, and many other organic chemical precursors of life.
Of course it's all still hypothesis, not theory or fact, but some of it very interesting.
That experiment was over 60 years ago and since then similar, related experiments based on different assumptions regarding the early Earth have produce similar results, and many other organic chemical precursors of life.
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Do you have specific information on these experiments?
My specific source was from 2010:
http://www.npr.org/templates/story/story.php?storyId=123447937
Biochemist Nick Lane was the scientist with a different proposal than the atmosphere and lightning reacting to create amino acids.
The reducing atmosphere/lightning reaction hypothesis came from Haldane in 1929, and Miller-Urey simply put his hypothesis in vitro, getting the expected result.
The problem was that the primordial atmosphere was not a reducing one. From further research, I’ve found that scientists knew this since the 1970s, but the Miller-Urey experiment is still used as “proof” that the OOL puzzle has been solved.