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Life as we don't know it ... on Earth?
msnbc.com ^ | Dec. 2, 2010

Posted on 12/02/2010 10:17:58 AM PST by Free ThinkerNY

Alan Boyle writes:NASA's secret is finally out: Researchers say they've forced microbes from a gnarly California lake to become arsenic-gobbling aliens. It may not be as thrilling as discovering life on Titan, but the claim is so radical that some chemists aren't yet ready to believe it.

If the claim holds up, it would lend weight to the idea that life as we know it isn't the only way life could develop. Organisms with truly alien biochemistry could conceivably arise on a faraway exoplanet, or on the Saturnian moon Titan, or even here on Earth.

"Our findings are a reminder that life as we know it could be much more flexible than we generally assume or can imagine," Felisa Wolfe-Simon, an astrobiology researcher at the U.S. Geological Survey, said in a statement from Arizona State University announcing the results. Wolfe-Simon is the lead author of a paper reporting the findings, which was published online today by the journal Science.

Four years ago, while studying at ASU, Wolfe-Simon proposed that some organisms in extreme environments might be adapted to use arsenic in place of phosphorus. Phosphorus is one of the elements essential to life's chemistry -- in addition to carbon, hydrogen, nitrogen, oxygen and sulfur. Arsenic, which is just below phosphorus on the periodic table, is poisonous precisely because it can take phosphorus' place in biomolecules.

"It gets in there and sort of gums up the works of our biochemical machinery," ASU's Ariel Anbar, a co-author of the Science paper, explained.

(Excerpt) Read more at cosmiclog.msnbc.msn.com ...


TOPICS: Science
KEYWORDS: arsenic; as; astrobiology; butnotasweknowit; exobiology; itslifejim; panspermia; xplanets
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1 posted on 12/02/2010 10:17:59 AM PST by Free ThinkerNY
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To: Free ThinkerNY
"Our findings are a reminder that life as we know it could be much more flexible than we generally assume or can imagine,"

Welcome to the Blob. Where's Steve McQueen when we need him?

2 posted on 12/02/2010 10:25:28 AM PST by DWar ("The ultimate destination of Political Correctness is totalitarianism.")
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To: Free ThinkerNY

So how would Napolean die on a planet full of Arsenic


3 posted on 12/02/2010 10:26:11 AM PST by SoftwareEngineer
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To: Free ThinkerNY

So slipping arsenic in their drink won’t work.


4 posted on 12/02/2010 10:28:30 AM PST by Larry Lucido
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To: DWar
Where's Steve McQueen when we need him?

RIP. Meanwhile, where's the fire extinguisher?

5 posted on 12/02/2010 10:38:41 AM PST by thulldud (Is it "alter or abolish" time yet?)
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To: Free ThinkerNY

“Alan Boyle writes:NASA’s secret is finally out: Researchers say they’ve forced microbes from a gnarly California lake to become arsenic-gobbling aliens. “

How did they make microbes from California become “aliens”?

MSNBC doesn’t even want to call people from outside our nation “alien”.


6 posted on 12/02/2010 10:39:39 AM PST by a fool in paradise (The establishment clause isn't just against my OWN government establishing state religion in America)
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To: Free ThinkerNY

What does this have to do with Muslim outreach?


7 posted on 12/02/2010 10:42:25 AM PST by samtheman
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To: a fool in paradise

ooops those pesky military microbes have been found...


8 posted on 12/02/2010 10:45:40 AM PST by longtermmemmory (VOTE! http://www.senate.gov and http://www.house.gov)
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To: samtheman

Boy am I glad the actual annoucement lived up to all the hype. /sarc


9 posted on 12/02/2010 10:46:04 AM PST by SpringtoLiberty (Liberty is on the march!)
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To: samtheman

Wait until the Muslims steal the idea and claim it as their
own!


10 posted on 12/02/2010 10:48:26 AM PST by Dr. Ursus
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To: Free ThinkerNY

If the claim holds up it would lend weight to the idea that life can develop in ways other than we expected?

Their arrogance and ignorance is astounding. They dismiss all ideas that don’t fit into the box they’ve drawn.


11 posted on 12/02/2010 10:48:47 AM PST by BuckeyeTexan (There are those that break and bend. I'm the other kind.)
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To: Free ThinkerNY

bump


12 posted on 12/02/2010 10:57:33 AM PST by dangerdoc (see post #6)
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To: Free ThinkerNY

13 posted on 12/02/2010 11:03:36 AM PST by Yossarian (Heartfelt thanks, Tea Party Patriots! Despite slander and muck, you pulled through!)
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To: Free ThinkerNY
Frank Capra revealed this in 1944!


14 posted on 12/02/2010 11:48:46 AM PST by Young Werther ("Quae cum ita sunt" Since these things are so!)
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To: Free ThinkerNY

Sen Boxer has been on the forefront of trying to rid the world of arsenic.

Even in naturally occurring areas she has brought in the weight of the federal government to regulate less of it.


15 posted on 12/02/2010 1:17:16 PM PST by edcoil ("Help the helpless, don't give a shit about the clueless.")
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To: BuckeyeTexan
"If the claim holds up it would lend weight to the idea that life can develop in ways other than we expected?"

No 'weight' has been added. It's still the fallacy of affirming the consequent.

"Their arrogance and ignorance is astounding. They dismiss all ideas that don’t fit into the box they’ve drawn."

The only box that truly exists is the one that life 'developed'. See if you can get out of that one.

16 posted on 12/02/2010 3:35:06 PM PST by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: BuckeyeTexan
Their arrogance and ignorance is astounding.

Being some kind of scientist, I find your statement weird. So if every life form we have yet found (and I mean Every, the number not being short) fits into a "box",i.e. the six (previously thought to be) basic elements, why wouldn't there be an expectation and the corresponding surprise at finding something different? How is that arrogance? That Is science - You have a hypothesis based on evidence a till that gets disproved. There is never any Truth, just likelihoods.
17 posted on 12/02/2010 5:40:34 PM PST by kroll
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To: SoftwareEngineer

Antimony poisoning. It has the same valence as arsenic and phosphorus


18 posted on 12/02/2010 6:28:27 PM PST by jmcenanly ( "We pay a person the compliment of acknowledging his superiority whenever we lie to him." -Samuel)
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To: kroll

It is arrogant in my opinion for scientists to discount other possibilities simply because those possibilities don’t meet the requirements that scientists have defined by categorizing only what they have observed thus far.

One would think that if the scientific community has learned anything in the last twenty years, it is that the building blocks of life are far more complex than scientists ever imagined.

To me, it’s common sense that if life does exist on other planets, it probably won’t be life as we expect it because the characteristics of other planets are so different from Earth. One cannot and should not take observations made about lifeforms on Earth and expect those observations to hold true anywhere other than Earth. So I’m suprised that scientists are surprised to discover that life may develop in unexpected ways.

If science hasn’t observed it, then it cannot and doesn’t exist? So dismiss it as a possibility until it’s “discovered?”


19 posted on 12/02/2010 9:42:13 PM PST by BuckeyeTexan (There are those that break and bend. I'm the other kind.)
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To: BuckeyeTexan

It is an interesting and fascinating find, kudos to our scientists for discovering this. The Scientific Method works, new discoveries open a whole new world to us. Every scientist I know is excited when an old theory is challenged and using the Scientific method is disproved.

Great stuff, NASA deserves 5X the funding they get.


20 posted on 12/02/2010 9:48:00 PM PST by Sto Zvirat
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