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    UFOs & Extraterrestrial Life

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    Walther von Oldenburg

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    Re: UFOs & Extraterrestrial Life

    Post  Walther von Oldenburg on Mon Jun 11, 2018 4:49 pm

    Martian atmosphere cannot support liquid water. It boils at some 10 degrees Celsius. Diurnal temperature variation is also too high - imagine lakes on Earth continuosly boiling and freezing every day - not a good place for life to flourish, eh?

    Firebird

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    Re: UFOs & Extraterrestrial Life

    Post  Firebird on Tue Jun 12, 2018 9:58 pm

    Walther von Oldenburg wrote:Martian atmosphere cannot support liquid water. It boils at some 10 degrees Celsius. Diurnal temperature variation is also too high - imagine lakes on Earth continuosly boiling and freezing every day  - not a good place for life to flourish, eh?

    Hmm yeah. THat means that life would be differnt to our own, not necessarily non existent.
    On Earth we have life under the sea in volcanic activity areas, with huge pressure and lots of sulphur.
    We also have intelligent life in incredibly cold conditions on Earth. (Altho the life from Ya.kut.sk I have experience of is anything but intelligent, but I digress : D )

    You could even have life with silicon not carbon compounds.

    The boiling is due to low pressure, not extreme heat.

    There's also the possibility of life under ice, or underground.
    Mars was probably more like Earth in the past.
    Plus with it being billions of years old, life could have adapted to suit conditions.
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    starman

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    Re: UFOs & Extraterrestrial Life

    Post  starman on Fri Jun 29, 2018 2:50 pm

    Firebird wrote:
    Plus its been confirmed that there is polar ice that surely melts in the warmer season.

    The southern cap consists of frozen CO2, and the northern cap experiences spring/summer under aphelic conditions, so it's never warm enough to melt. It does sublimate though.


    Mars is big enough, and its temperature is ok for life

    The planet is way too small and way too cold for surface life.


    infact  OK its atmosphere is different to Earth, but so is Earth's sea

    Mars hardly even has an atmosphere--just 4-6mb pressure over most of it.

    So for that reason, it wouldn't surprise me at all if Mars still has life, even life with some level of sentience and intelligence.

    No serious researcher believes that anymore.


    Last edited by starman on Mon Jul 09, 2018 11:39 am; edited 1 time in total
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    starman

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    Re: UFOs & Extraterrestrial Life

    Post  starman on Fri Jun 29, 2018 2:53 pm

    Walther von Oldenburg wrote:Martian atmosphere cannot support liquid water. It boils at some 10 degrees Celsius. Diurnal temperature variation is also too high - imagine lakes on Earth continuosly boiling and freezing every day  - not a good place for life to flourish, eh?

    Mars never really gets hot, and seldom even warm enough for biological activity except perhaps underground. Martian lakes, even a sea, existed in Noachian (-Hesperian?) time but even then they probably had an ice cover.
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    starman

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    Re: UFOs & Extraterrestrial Life

    Post  starman on Fri Jun 29, 2018 3:01 pm

    Firebird wrote:
    Hmm yeah. THat means that life would be differnt to our own, not necessarily non existent.
    On Earth we have life under the sea in volcanic activity areas, with huge pressure and lots of sulphur.
    We also have intelligent life in incredibly cold conditions on Earth. (Altho the life from Ya.kut.sk I have experience of is anything but intelligent, but I digress : D )

    Life may be adaptable but there are limits to the severity of what it can endure and the Martian surface appears beyond the threshold. It's not just the intense cold and radiation. The surface is oxidized and that wipes out organic material.


    You could even have life with silicon not carbon compounds.

    Highly unlikely.

    The boiling is due to low pressure, not extreme heat.
    There's also the possibility of life under ice, or underground.

    Right.

    Mars was probably more like Earth in the past.

    It was a little more like earth for a geologically rather limited period of time known as the Noachian. Already by Hesperian time the atmosphere was practically gone.


    Plus with it being billions of years old, life could have adapted to suit conditions.

    If it ever existed it MIGHT have just survived underground.

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