Is there proof or a theory that shows that the first amino acid syntheses on Earth were influenced by a change in heat, gravity, radiation, or something similar?

  • $\begingroup$ Welcome to Chemistry.SE. Since there is quite a large(!) gap between the presence of amino acids and the development of life I just want to be sure: You want the answers to your question to concentrate on the first amino acids on earth and not on the first life, right? $\endgroup$
    – Philipp
    Sep 19, 2013 at 20:55
  • $\begingroup$ the question is concentrated in the first amino acids on earth what happened any theories or proves? What happened to atoms to merge into this way $\endgroup$
    – Flux
    Sep 19, 2013 at 21:21
  • 6
    $\begingroup$ Are you looking for something like the Miller-Urey experiment: en.wikipedia.org/wiki/Miller%E2%80%93Urey_experiment $\endgroup$
    – Philipp
    Sep 19, 2013 at 21:57
  • $\begingroup$ An earlier question maybe a duplicate. $\endgroup$
    – f p
    Mar 21, 2014 at 18:17

1 Answer 1


The universe cooled after the Big Bang. There was certainly an epoch when the universe’s overall temperature decreased from 200 °C to −40 °C throughout a very large volume. There is your test tube (more like a Florence flask) for abiogenesis and then the panspermia reservoir.

Before you suspect the preceding is clever, how and when (what ambient vacuum temperature) did elements heavier than boron arise?

  • 5
    $\begingroup$ Though this answer doesn't directly address the asker's concerns, I have to say you got me. I had never considered the possibility that life in the Universe could have arisen while the entire thing was around what we consider ambient temperature, and the idea hit me like a brick for a few seconds. Alas, the Universe cooled down far too quickly. $\endgroup$ Mar 20, 2014 at 23:14
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    $\begingroup$ Redshift z = 140, 10.1 million years old, 111°C radiation temp. A fraction of zero metallicity hypergiant stars might have gone supernova to supply heavier elements, then chemistry. Redshift z = 110, 14.5 million years old, 29°C radiation temp. Complex organics from radiation chemistry with asteroids as substrate. 5-10 million years to evolve even unicellular life buried in asteroids' liquid water inclusions is inadequate. (Somebody post it in physics. It happened in the multiverse! Once.) $\endgroup$
    – Uncle Al
    Mar 21, 2014 at 1:02

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