Its life, Jim, but not as we know it...

Gargoyle2k7's picture
Gargoyle2k7
December 2, 2010 - 12:32pm
Big news today from NASA: http://gizmodo.com/5704158/
This brings to mind all the discussion of silicon and fluorine based lifeforms.  The universe is indeed a strange place, and life does indeed find a way. 
Long live the Frontier!
Comments:

Deryn_Rys's picture
Deryn_Rys
December 2, 2010 - 4:40pm
Just when I was thinking of adding a crystal based alien race to the Frontier....Now I'll be accused of stealing ideas from reality too...
"Hey guys I wonder what this does"-Famous last words
"Hey guys, I think it's friendly." -Famous last words
"You go on ahead, I'll catch up." -Famous last words
"Did you here that?" -Famous last words

jacobsar's picture
jacobsar
December 2, 2010 - 4:53pm
He he..

But seriously, what would a hamburger be like on "Arsenic instead of Phosphorus" world?
Reasonable men adapt to the world around them; unreasonable men make the world adapt to them. The world is changed by unreasonable men.
Edwin Louis Cole

Ascent's picture
Ascent
December 2, 2010 - 5:45pm
Dude, this is totally freakin' awesome! This is perfect timing, just as I was back working on Gamma Dawn. This will go great! It also shows how versatile and dominant DNA truly is. I can't wait to find out what else can go in the place of arsenic/phospherous or if another element can be changed out in the DNA code, or what arsenic-based life can produce. Man, arsenic changing out with phospherous gives a new meaning to DNA as "building blocks of life".
View my profile for a list of articles I have written, am writing, will write.
"It's yo' mama!" —Wicket W. Warrick, Star Wars Ep. VI: Return of the Jedi
"That guy's wise." —Logray, Star Wars Ep.VI: Return of the Jedi
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Ascent's picture
Ascent
December 2, 2010 - 5:59pm
Follow the links. This year's discoveries are dramatically increasing the possibilities of life on other worlds. From the red dwarf flooded galaxies to the earth-like planet discovered as 4th rock from Gliese 581, a red dwarf, no less.
View my profile for a list of articles I have written, am writing, will write.
"It's yo' mama!" —Wicket W. Warrick, Star Wars Ep. VI: Return of the Jedi
"That guy's wise." —Logray, Star Wars Ep.VI: Return of the Jedi
Do You Wanna Date My Avatar? - Felicia Day (The Guild)

Will the Stampede's picture
Will the Stampede
December 2, 2010 - 11:17pm
Arsenic-based life. I bet no one ever saw that coming.

As for life on other planets, I've always held to that belief, even without evidence. Just too improbable that out of all the stars in all the galaxies of the universe, we're the only ones who achieved sentience(politicians don't count....).


" 'Beware the Beast, Man, for he is the Devil's pawn. Alone among God's primates, he kills for sport, for lust, for greed. Yea, he will murder his brother to possess his brother's land. Let him not breed in great numbers, for he will make a desert of his home and yours. Shun him; drive him back into his jungle lair, for he is the harbinger of death."

jedion357's picture
jedion357
December 3, 2010 - 12:08pm
Elitist And Bully wrote:
Arsenic-based life. I bet no one ever saw that coming.




Hasn't silocone based life been discovered in CA? I was under the impression it had a higher population density in places like Rodeo Drive.
I might not be a dralasite, vrusk or yazirian but I do play one in Star Frontiers!

Will the Stampede's picture
Will the Stampede
December 3, 2010 - 2:23pm
jedion357 wrote:
Elitist And Bully wrote:
Arsenic-based life. I bet no one ever saw that coming.




Hasn't silocone based life been discovered in CA? I was under the impression it had a higher population density in places like Rodeo Drive.


And, Hashbury. Don't forget Hashbury....Laughing
" 'Beware the Beast, Man, for he is the Devil's pawn. Alone among God's primates, he kills for sport, for lust, for greed. Yea, he will murder his brother to possess his brother's land. Let him not breed in great numbers, for he will make a desert of his home and yours. Shun him; drive him back into his jungle lair, for he is the harbinger of death."

rattraveller's picture
rattraveller
December 4, 2010 - 4:18pm
Bottom of the ocean and in some really deep volcano vents there is some silicon based life and now we have arsenic based life. Wonder what kind we will find next?
Sounds like a great job but where did you say we had to go?

Gargoyle2k7's picture
Gargoyle2k7
December 4, 2010 - 9:21pm
There is still no silicon-based life.  There are lifeforms that can process silicon in some fashion, such as in constructing certain structures in the bodies.  The concept of silicon-based life is that it replaces carbon with silicon.  In the case of this newly discovered bacteria, it substitutes arsenic for phosphorus, which is fundamental for life as we knew it.  As I understand it, DNA was believed to require phosphorus for metabolic function, and arsenic is toxic to most life as it replaces the phosphorus, retarding metabolism.  That's why this carbon-based, arsenic using lifeform is so intriguing.  It does something formerly thought impossible, and its metabolic chemistry is different from anything else on Earth.
Long live the Frontier!

Gargoyle2k7's picture
Gargoyle2k7
December 4, 2010 - 9:21pm
There is still no silicon-based life.  There are lifeforms that can process silicon in some fashion, such as in constructing certain structures in the bodies.  The concept of silicon-based life is that it replaces carbon with silicon.  In the case of this newly discovered bacteria, it substitutes arsenic for phosphorus, which is fundamental for life as we knew it.  As I understand it, DNA was believed to require phosphorus for metabolic function, and arsenic is toxic to most life as it replaces the phosphorus, retarding metabolism.  That's why this carbon-based, arsenic using lifeform is so intriguing.  It does something formerly thought impossible, and its metabolic chemistry is different from anything else on Earth.
Long live the Frontier!

Ascent's picture
Ascent
December 6, 2010 - 4:47pm
Thanks for saving me that explanation, Gargoyle.

These are the first lifeforms we've come across that actually have any part of the DNA chain replaced with anything.

Also, technically, this is also not "arsenic-based". It is still a carbon-based lifeform with an arsenic, instead of phospherous structure. This means that it needs a lot more arsenic in its diet and a lot less phospherous than we do.
View my profile for a list of articles I have written, am writing, will write.
"It's yo' mama!" —Wicket W. Warrick, Star Wars Ep. VI: Return of the Jedi
"That guy's wise." —Logray, Star Wars Ep.VI: Return of the Jedi
Do You Wanna Date My Avatar? - Felicia Day (The Guild)