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View Poll Results: what would aliens do if they landed on earth

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  • destroy us

    1 16.67%
  • negoshiate with us

    1 16.67%
  • experiment on us

    0 0%
  • all of the above

    1 16.67%
  • none of the above

    3 50.00%
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Thread: what would happen if aliens landed on earth??

  1. #1 what would happen if aliens landed on earth?? 
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    have they landed on earth?
    does the goverment reverse engineer the technologies?


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  3. #2  
    Forum Radioactive Isotope skeptic's Avatar
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    Lewis, that is a meaningless question, since we have no data to base any prediction upon. The only thing we know about life comes from a sample of just one - planet Earth. While the universe is so big that there is probably life out there, we have no data on that life - what it is like, how varied it is, how advanced etc.

    I have followed the UFO debate and concluded that there is no credible evidence that any UFO is a space craft of any kind. Richard Feynman said : "It is far more likely that UFOs are the result of the known irrational nature of terrestrial intelligence than the unknown rational nature of extraterrestrial intelligence!"


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  4. #3  
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    There's nothing to base an answer on.

    One question: As time goes on does it become more likely that extraterrestial life will be found/contact us?

    I have a vague feeling that this is a stupid question....but I can't work out an obvious answer.
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  5. #4  
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    Quote Originally Posted by Yeeeaaaa
    One question: As time goes on does it become more likely that extraterrestial life will be found/contact us?
    Also unknowable. If there is life in close proximity there's an increased chance well find it because our sensors are getting better and better. If there's not life anywhere near close to us than it won't matter.
    Meteorologist/Naturalist & Retired Soldier
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  6. #5  
    Forum Radioactive Isotope skeptic's Avatar
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    Quote Originally Posted by Yeeeaaaa
    One question: As time goes on does it become more likely that extraterrestial life will be found/contact us?
    That is not a stupid question at all. It is a smart query.

    Look up Fermi Paradox.
    http://en.wikipedia.org/wiki/Fermi_paradox

    The fact that we have no credible evidence of any alien visit to Earth, against a time drop of the 6 to 8 billion years that star systems have existed in our galaxy, would suggest that intelligent life is rare in our galaxy.

    This in turn implies that the first ET life we detect will be a result of our own efforts. Either something like bacteria on Mars, or maybe a life bearing planet around another star system, detected with a massive telescope combined with advanced spectroscopy able to pick up the signature of organic molecules.

    I doubt it will happen in my own lifetime, though.
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  7. #6  
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    Ahhhh that's why I thought it was a stupid question....I had read about Fermi before. Thanks for your help.

    Personally I don't think I could get that excited about the finding of bacteria. I know it would be a HUGE deal but it just doesn't seem enough like real life to me. Not a very sophisticated outlook, I know, but just my feelings on the subject.
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  8. #7  
    Forum Bachelors Degree 15uliane's Avatar
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    I would be excited-if bacteria can exist extraterrestrially, it is likely more complex life can exist. We did, after all, evolve from bacteria.
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  9. #8  
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    I have a personal hypothesis about bacteria on Mars. I predict that, if they are discovered, they will be found by DNA analysis to be close relatives of Earth bacteria.

    My reason for this is that studies have shown several interesting things.

    1. Some Earth bacteria can survive under extremely harsh conditions, and may be able to survive and reproduce, albeit slowly, on some parts of Mars.
    2. Some Earth bacteria produce spores which can survive protracted lengths of time inside rocks or particles of rock dust, under vacuum, and heavy cosmic ray attack. ie. in space.
    3. Some prehistoric asteroid impacts, like the dinosaur killer, have been calculated to flick Earth rocks into space.
    4. Some Earth bacterial spores can survive those kinds of extreme acceleration.
    5. Mars rocks have fallen on Earth. So it makes sense that some Earth rocks could fall on Mars. Rock dust could be driven out away from Earth by the solar wind into Mars orbit.

    Put all this together, and you see the possibility that at some time over the past X million years, Earth rocks containing bacterial spores may have seeded Mars with life.
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  10. #9  
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    It may be possible, but that doesn't make it likely.

    15uliane-I guess you're just too sophisticated for me...I know it would be a big deal, but you can't even see them. And we already have a pretty good idea that based on the size of the universe, there is ET life. It would essentially be a confirmation.

    Advanced life, however, is a different matter.
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  11. #10  
    Forum Radioactive Isotope skeptic's Avatar
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    I missed one other important reason.
    Life on Earth took a long time to come into being. The oldest unequivocal fossil is 2.8 billion years ago on a world that is 4.5 billion years old. It is very likely that life took a billion years to reach any sort of organisation at all.

    Since Mars had liquid water, as far as we can tell, for only a couple hundred million years, it seems unlikely that Mars could have developed its own indigenous life in that time. Thus, if life is found there, it would probably have come from off planet.
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  12. #11  
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    I would probably choke on whatever I was eating at the time, perhaps a chicken bone?
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  13. #12  
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    One possibility is that alien cultures are numerous, but territorial, and the Earth lies within a territory wholly claimed by just one alien culture. That one culture has refused to grant access to the others, so the fact we don't get numerous visitors is the result of just one decision.

    Quote Originally Posted by skeptic
    Quote Originally Posted by Yeeeaaaa
    One question: As time goes on does it become more likely that extraterrestial life will be found/contact us?
    That is not a stupid question at all. It is a smart query.

    Look up Fermi Paradox.
    http://en.wikipedia.org/wiki/Fermi_paradox

    The fact that we have no credible evidence of any alien visit to Earth, against a time drop of the 6 to 8 billion years that star systems have existed in our galaxy, would suggest that intelligent life is rare in our galaxy.

    This in turn implies that the first ET life we detect will be a result of our own efforts. Either something like bacteria on Mars, or maybe a life bearing planet around another star system, detected with a massive telescope combined with advanced spectroscopy able to pick up the signature of organic molecules.

    I doubt it will happen in my own lifetime, though.
    Another possibility is that an intergalactic community has already emerged, committed to the idea that indigenous life should not be interfered with.

    In the world we know, experience has taught us that whenever advanced cultures impose themselves onto developing cultures, the developing culture usually doesn't fare very well, even if the contact is not meant to be aggressive. If that is a fundamental law of nature, rather than a coincidence specific to just our species, then an interstellar culture would have noticed it by now.

    Our history has taught us what a tragedy it is to wipe out a foreign culture and lose all of its ideas. Perhaps aliens have learned that if they observe new cultures from afar, without disrupting them, they can learn things also, and clearly that knowledge is more valuable than any resources they would get out of disrupting us.
    Some clocks are only right twice a day, but they are still right when they are right.
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  14. #13  
    Veracity Vigilante inow's Avatar
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    Lewis - I think you need to watch this video from Neil Tyson. He drives home a point many of us have been making, and he is very funny as he does so. Enjoy.


    http://www.youtube.com/watch?v=zfAzaDyae-k
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