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Thread: Nasa to make announcement about possible ET life find on Thursday

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    NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Know

    NASA is holding a press conference today at 2pm to announce a major finding in their research in astrobiology, and speculation is high the agency said the finding "will impact the search for evidence of extraterrestrial life."

    The news has leaked now, and while the discovery is not extraterrestrial life, NASA has indeed uncovered an entirely new form of life that "doesn't share the biological building blocks of anything currently living" on Earth
    NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Know


    Awesome!
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    Re: NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Kn

    I thought you were going to say that NASA just discovered life in Washington, D.C.

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    Re: NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Kn

    Simply amazing.

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    Re: NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Kn

    I think what we'll find (eventually) is that life is very stubborn as well as adaptive. Life that can live in arsenic could probably live in a methane/sulphuric acid base somewhere in the universe too. Just because our life is based on water and carbon doesn't mean diddly.
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    Re: NASA to announce "major discovery" that could boost chances of life on other worl

    Looks like the organism incorporates arsenic into its DNA, which is quite fascinating. It also appears that the reason for the astrobiology hook is that the research was funded by NASA's astrobiology department and lead by a NASA Astrobiology Research Fellow. I withdraw my comments about sensationalism

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    Re: NASA to announce "major discovery" that could boost chances of life on other worl

    Quote Originally Posted by marduc View Post
    but that does not necessarily point to a second abiogenesis, it could be just adaptations and the substitution of phosphorus with arsenic, it does not mean a rewriting of everything, it is just adapting to utilize an element that is in the same group instead. You find similar in biology (albeit not with such profound implications) with magnesium replacing calcium
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    Re: Nasa to make announcement about possible ET life find on Thursday

    According to the following links the annoucement will concern
    discovery of a previuosly unknown microbe in Lake Mono CA:

    "...which lives with levels of arsenic in its biology that were hitherto
    believed impossible (and) significantly broaden(s) the possibility of
    what life may be possible on other planets with different environments"


    http://www.slashgear...-life-02117300/

    http://www.timesonli...icle7040864.ece


    I do not think NASA should be budgeted to search for new
    life forms on Earth. It has plenty of work to do making sure
    its next Mars Rover doesn't roll over or get stuck in some
    sand dune, and there are plenty of Earth-bound biologists
    and biology departments who can perform such work as NASA
    is now conducting at Mono Lake.

    Unfortunately so many people are in love with the notion
    of Martian and other bugs, shrubs, ETs, Little Green Men,
    etc etc etc that NASA sees an opportunity for PR tease
    and hype, with consequent budgetary support. Well, I am
    all in favor of the hard science of space exploration, but
    I have a serious aversion to tease and hype, and I hope
    this source of tease and hype at Mono Lake gets the plug
    pulled on it if Congress ever goes on a real budget-cutting spree.

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    Re: NASA Discovers New Life: Arsenic Bacteria With DNA Completely Alien To What We Kn

    My friend earlier today was explaining to me the importance and it is really cool.

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    Re: NASA to announce "major discovery" that could boost chances of life on other worl

    However, those interested in astrobiology - the hunt for life elsewhere in the cosmos - have long argued that alien life might be built on a different set of rules.

    For example, astrobiologists have suggested that instead of the ubiquitous water that makes up so much of life, extraterrestrial life might just as likely run on ammonia.

    One idea to shore up these theories is to begin to look for examples of life here on Earth that break the "golden rules" of biochemistry - in effect, finding life that evolved separately from our own lineage.

    John Elliott, a leader of the UK's search for extraterrestrial intelligence, explained how such evidence on Earth could be suggestive about life elsewhere.

    "If we can find a 'second genesis' on our planet, obviously separate from our own evolution, you could then extrapolate that life can generate multiple times - that it's not a one-off phenomenon," he told BBC News.
    Continue reading the main story
    “Start Quote

    If something here on Earth can do something so unexpected, what else can life do that we haven't seen yet? Now is the time to find out”

    End Quote Felisa Wolfe-Simon Nasa Astrobiology Institute

    "And that's incredible evidence for it happening on other planets."

    BBC News - Arsenic-loving bacteria may help in hunt for alien life
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    Re: NASA to announce "major discovery" that could boost chances of life on other worl

    Here's the official press release from NASA:
    NASA - NASA-Funded Research Discovers Life Built With Toxic Chemical

    It confirms that NASA has indeed discovered life that uses arsenic instead of phosphorus in its DNA. The article doesn't say anything about a second abiogenesis, so it's unclear if the arsenic microbes somehow evolved from life as we know it, or if they're terrestrial aliens. I'm sure the experts will be weighing in on what this means by this evening.

    In any case, it answers a long-standing question in astrobiology: Must ALL life necessarily be "life as we know it?" Today we have a definitive answer: No.
    Last edited by Kandahar; 12-02-10 at 03:25 PM.
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