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Thread: Extra Terrestrial Life

  1. #31
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    Default Re: Extra Terrestrial Life


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    Quote Originally Posted by rudolph View Post
    Or indeed how long life lasts...

    Earths life has come close to total extinction more than once.

    “Intelligent” life, like us, may not last long.... going on our own record, we could well have bred ourselves to extinction in a few tens of thousands of years. We are certainly on a path for it...
    Every species is on a path for extinction and always was.

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    Default Re: Extra Terrestrial Life

    Quote Originally Posted by ink ink View Post
    Every species is on a path for extinction and always was.
    Some faster than others...

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    Default Re: Extra Terrestrial Life

    Panspermia

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    Default Re: Extra Terrestrial Life

    Also we are a carbon based life form, and we have non carbon based life forms on this planet.

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    Default Re: Extra Terrestrial Life

    Quote Originally Posted by katana View Post
    we have non carbon based life forms on this planet.
    Sounds unlikely. Carry on though; tell us the rest.

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    Default Re: Extra Terrestrial Life

    The universe is full of water, even the “stone cold dead” satellites around Jupiter have vast oceans of water, recently discovered to be liquid. It is a very common compound and there does appear to be a big watery “Earth like” planet only 125 light years away.

    Sadly I have formed the opinion that superluminal velocities are impossible. Wormholes, if they exist, cannot transport matter (they collapse or rip matter into fundamental particles). Jump into a black hole and at some point, your feet will be a thousand million times heavier than your head. I think it’s referred to as “ Spaghettification” for obvious reasons.

    So that exoplanet is for all intents and purposes unreachable (in my humble opinion), 125 light years means even if we could accelerate to a reasonable fraction of the speed of light, to get there, decelerate etc it would take conservatively several hundred years.

    The universe it appears always protects itself from paradox, every possible conceivable method for breaking the speed limit has fundamental unresolvable issues. Just because we can imagine it and just because we’ve turned out to be clever little monkeys, doesn’t mean we will ever solve that issue. We are stuck here. Science fiction is just that, a fiction.

    Life may indeed be everywhere, even “intelligent” life, if only because this universe is so unimaginably huge but that also means any other examples could be impossibly distant in both space and time. On a lighter note, it is quite possible life got here embedded in interstellar asteroids; some hardy bacteria or maybe a virus (??) aka panspermia. On top of that, it’s quite possible that happened a few times and we’re not all related. Must admit I often wonder about spiders but especially squid, they could be the closest creatures to “alien” life forms we’ll ever actually meet.

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    Default Re: Extra Terrestrial Life

    Quote Originally Posted by ink ink View Post
    Sounds unlikely. Carry on though; tell us the rest.
    https://science.nasa.gov/science-new...02dec_monolake

    https://www.nytimes.com/1982/04/24/u...ic-energy.html

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    Default Re: Extra Terrestrial Life

    Did you read those links? One is about an organism incorporating arsenic instead of phosphorus; the other is about nourishment from sulphur and organisms surviving in an acrid environment.

    Nothing at all about your “non-carbon based life forms.”

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