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Thread: Fermi Paradox may have evidence for why absence of extraterrestrial biological entities.

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    Ireland Avalon Member aoibhghaire's Avatar
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    Default Fermi Paradox may have evidence for why absence of extraterrestrial biological entities.

    Fermi Paradox in SETI may have been confirmed of why the absence or rarity of extraterrestrial biological conscious beings in our space and time. Because absent phosphorus questions possible life on other planets in our Milky Way galaxy. We may still have existence of advanced ETs, but they may be rare. The result may depend on the rate of frequency of supernovae explosions in our own Milky Way galaxy IMO.

    Note:

    1. Life requires six elements: Carbon, Nitrogen, Hydrogen, Oxygen, Sulfur, Phosphorous.

    2. Phosphorous is a fundamental part of the development of the double helix DNA.

    3. Phosphorous is rare in the Universe. If our Solar System had not been close to a supernovae their might not be any carbon life.

    4. A distinct lack of the chemical element phosphorus in other parts of the Universe could make it very difficult for extra-terrestrial life to exist there.

    This is according to experts at Cardiff University who have found very little evidence of the element – which is essential to life on Earth – around the Crab Nebula, a supernova remnant around 6500 light years away in the direction of the constellation of Taurus.
    As one of six elements on which Earth’s organisms depend, the findings cast doubt on whether life similar to our own would be able to exist on other planets.

    Dr Jane Greaves, from Cardiff University’s School of Physics and Astronomy, said: “Phosphorus is crucial to the compound adenosine triphosphate (ATP), which cells use to store and transfer energy. Astronomers have just started to pay attention to the cosmic origins of phosphorus and found quite a few surprises. In particular, it is created in supernovae – the explosions of massive stars – but the amounts seen so far don't match our computer models.”

    The team used the UK's William Herschel Telescope, situated on La Palma in the Canary Islands, to observe infrared light from phosphorus and iron in the Crab Nebula.
    Other researchers had already studied the supernova remnant Cassiopeia A for evidence of phosphorus, so the Cardiff University team were able to compare two different stellar explosions based on how they each ejected phosphorus into the atmosphere.

    “For parts of the Crab Nebula we were able to observe so far, there seems to be much less phosphorus than in Cassiopeia A. The two explosions seem to differ from each other, perhaps because Cassiopeia A results from the explosion of a rare super-massive star.”
    The preliminary results suggest that material blown out into space could vary dramatically in chemical composition.

    “The route to carrying phosphorus into new-born planets looks rather precarious. We already think that only a few phosphorus-bearing minerals that came to the Earth – probably in meteorites – were reactive enough to get involved in making proto-biomolecules,” Greaves continued.

    “‘If phosphorus is sourced from supernovae, and then travels across space in meteoritic rocks, it’s possible that a young planet could find itself lacking in reactive phosphorus because of where it was born. That is, it started off near the wrong kind of supernova. In that case, life might really struggle to get started out of phosphorus-poor chemistry, on another world otherwise similar to our own.”

    Graves and Cigan have presented their preliminary results at the European Week of Astronomy and Space in Liverpool this April and have applied for more telescope hours to continue their search, to establish whether other supernova remnants also lack phosphorus, and whether this element, so important for complex life, is rarer than we thought.

    Reference: https://www.cardiff.ac.uk/news/view/...-other-planets

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    United States Avalon Member Intranuclear's Avatar
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    Default Re: Fermi Paradox may have evidence for why absence of extraterrestrial biological entities.

    That kind of conclusion completely disregards the fact that supernova explosions generate almost uncountable particulate matter in a volume of many hundreds if not thousands of light years.
    So really, if phosphorous is absolutely essential to ALL intelligent species then a better conclusion would be that we are virtually guaranteed to find intelligent neighbors.

    The Fermi paradox is just that, a paradox meaning complete and utter nonsense.
    One gets paradoxes when ones' assumptions are bogus.

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    Administrator Mark (Star Mariner)'s Avatar
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    Default Re: Fermi Paradox may have evidence for why absence of extraterrestrial biological entities.

    What's more, the theory that the biological, chemical, (and spiritual) genesis for emergent intelligent life-forms are propagated – seeded – throughout the Universe, by existing intelligences.

    In my opinion, some of the building blocks for life on Earth formed naturally. Were already present. But others were brought here. We were brought here.

    Perhaps one day Humans, if they survive, will one day do the same. Identify a suitable planet, tailor it, engineer it, and then impregnate it with the genetic seeds of Earth. Then stand back and over the eons watch the garden grow. Or wither.
    "When the power of love overcomes the love of power the world will know peace."
    ~ Jimi Hendrix

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