Bacteria Found Alive In Ice 120,000 Years Old (Full Version)

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swan42 -> Bacteria Found Alive In Ice 120,000 Years Old (6/3/2008 10:11:17 PM)

http://live.psu.edu/story/31052



SavedToo -> RE: Bacteria Found Alive In Ice 120,000 Years Old (6/12/2008 5:57:00 PM)

And they based their dating techniques on what? Carbon dating?



swan42 -> RE: Bacteria Found Alive In Ice 120,000 Years Old (6/12/2008 6:04:54 PM)

quote:

ORIGINAL: SavedToo

And they based their dating techniques on what? Carbon dating?


Of course not, carbon dating does work that far back as the half-life is too short.



evry1needsgod -> RE: Bacteria Found Alive In Ice 120,000 Years Old (6/13/2008 12:03:09 AM)

quote:

And they based their dating techniques on what?


Their bias.



essentialsaltes -> RE: Bacteria Found Alive In Ice 120,000 Years Old (6/13/2008 12:25:10 AM)

quote:

ORIGINAL: evry1needsgod

quote:

And they based their dating techniques on what?


Their bias.


Why did they pick 120,000, rather than 50,000 or 2 million? Do the researchers have an internal bias towards 120,000 years ago?

Actually, I expect they used ice layers to date the sample. (Or oxygen ratios compared to known ice cores with dated layers.)



Aristocrat -> RE: Bacteria Found Alive In Ice 120,000 Years Old (6/25/2008 10:17:43 PM)

Is it not significant to anyone here that the bacteria survived for 120,000 years, give or take a few thousand in an extreme environment of ice? Especially without metabolization?

Further, how biologically significant would it be that scientists have just found ice on Mars? Also that ice travels through the solar system as comets?



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