The Building Blocks for Life on Earth:

Discussion in 'Earth Science' started by paddoboy, Mar 12, 2020.

  1. Write4U Valued Senior Member

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    15,761
    No, read Paddo's quoted passage of Abstract, in Post #1, about the volatile materials, which until then I had not even considered at all, but his post started the mutual analysis of known evidence.
    My initial point was that Theia was big enough to deliver sufficient amounts of water to create our current oceans.
    AFAIK, early Earth did not have a lot of water , if any at all.

    p.p.s. From Post #16
    https://en.wikipedia.org/wiki/Theia_(planet)

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    Known objects in the Kuiper belt beyond the orbit of Neptune. (Scale in AU; epoch as of January 2015.)

    https://en.wikipedia.org/wiki/Kuiper_belt
     
    Last edited: Mar 14, 2020
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  3. Write4U Valued Senior Member

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    Just ran across these two excellent videos on "Life Beyond" earth.



     
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  5. Write4U Valued Senior Member

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    This may explain why life is very likely to develop where there are sufficient raw materials in a dynamic environment.
    The secret lies in the dynamical self-assembly of biochemicals, a common occurrence everywhere.

    From one to many: dynamic assembly and collective behavior of self-propelled colloidal motors

    Abstract
    https://pubmed.ncbi.nlm.nih.gov/26057233/
     
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  7. iceaura Valued Senior Member

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    Plus Darwinian evolution.
    They become "biochemicals" via Darwinian evolution. Before becoming part of an evolutionary development, they are just chemicals - no "bio" attached.
     
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