NASA finds a new type of lifeform

cirrrocco

Golden Member
Sep 7, 2004
1,952
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http://www.wired.com/wiredscience/2010/12/nasa-finds-new-life/
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Hours before their special news conference today, the cat is out of the bag: NASA has discovered a completely new life form that doesn’t share the biological building blocks of anything currently living in planet Earth. This changes everything.

At their conference today, NASA scientist Felisa Wolfe Simon will announce that they have found a bacteria whose DNA is completely alien to what we know today. Instead of using phosphorus, the bacteria uses arsenic. All life on Earth is made of six components: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur. Every being, from the smallest amoeba to the largest whale, share the same life stream. Our DNA blocks are all the same.

But not this one. This one is completely different. Discovered in the poisonous Mono Lake, California, this bacteria is made of arsenic, something that was thought to be completely impossible. While she and other scientists theorized that this could be possible, this is the first discovery. The implications of this discovery are enormous to our understanding of life itself and the possibility of finding beings in other planets that don’t have to be like planet Earth.

No details have been disclosed about the origin or nature of this new life form. We will know more today at 2pm EST but, while this life hasn’t been found in another planet, this discovery does indeed change everything we know about biology. I don’t know about you but I’ve not been so excited about a bacteria since my STD tests came back clean. And that’s without counting yesterday’s announcement on the discovery of a massive number of red dwarf stars, which may harbor trillion of Earths.

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Pretty cool news.
 

ayabe

Diamond Member
Aug 10, 2005
7,449
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Hail Ants?!

This is awesome though, this could mean there are humanish intelligent life forms out there that might survive in all sorts of places were wouldn't have considered possible before with some extremely weird physiology.

I for one am looking forward to the first blob-like creature that knows quantum physics. No eyes or hands just a big brain that absorbs methane from his 1000C atmosphere.
 

Throckmorton

Lifer
Aug 23, 2007
16,829
3
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This really does change everything. Until now, all life on earth was known to have evolved from a common ancestor. This bacteria would have evolved completely independently. It's basically alien. Well, unless it could have somehow replaced phosphorous with arsenic somewhere along the way.

Edit: Doh, that's what they did. Replaced phosphorous with arsenic. They're related to the bacteria that eat oil.
http://blogs.discovermagazine.com/n...-using-arsenic-and-no-this-isnt-about-aliens/
 

TheVrolok

Lifer
Dec 11, 2000
24,254
4,092
136
They discussed this exact topic/bacteria in an episode of Through the Wormhole months ago, very interesting, but I suppose not exactly Earth shattering news for the masses. They're not even shadow biosphere bugs. :( Yawwwnn. :(
 

Throckmorton

Lifer
Aug 23, 2007
16,829
3
0
According to the Discover blog post, NASA hyped it up, calling it an astrobiology discovery etc.. A lot of people thought it was about alien life.

NASA has been pulling this crap for as long as I can remember. Remember the "bacteria" on the martian asteroid?
 

theeedude

Lifer
Feb 5, 2006
35,787
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Next thing they are going to tell us is they discovered signs of intelligent life inside a conservative's head.
 

Infohawk

Lifer
Jan 12, 2002
17,844
1
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Gawd, why did NASA hype this up so much? This discovery is very cool, but is a bit of a stretch to call it a new type of lifeform. A big let down from the hype.

Because you're an expert on life? Sorry, I'm going with NASA and Science (the journal) over you.
 

werepossum

Elite Member
Jul 10, 2006
29,873
463
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I dunno, this seems pretty darned cool to me. This bacterium has biological life processes previously unknown, and that's a rare thing. At least, assuming it does not revert to preferentially using phosphorous in a non-arsenic rich environment. Probably a lot to be learned here. Will be interesting too to see if biologists think this process can be scaled up into higher order creatures.
 

daishi5

Golden Member
Feb 17, 2005
1,196
0
76
Gawd, why did NASA hype this up so much? This discovery is very cool, but is a bit of a stretch to call it a new type of lifeform. A big let down from the hype.

I thought the real big deal was that this lowered the requirements for a planet to have life. Before the planet always had to have all the elements available for life, but we have proof that other mixes work, so the chance of finding extraterrestrial life is now even higher.
 

JeepinEd

Senior member
Dec 12, 2005
869
63
91
Next thing they are going to tell us is they discovered signs of intelligent life inside a conservative's head.

It's amazing how some liberals are so consumed with hate that they will take an article that has nothing to do with politics, and use it to attack conservatives.


Back to the topic, I was hoping for something more revolutionary. While it is pretty cool, and it expands the possibility of life elsewhere, this is just another type of extremophile.
 

Acanthus

Lifer
Aug 28, 2001
19,915
2
76
ostif.org
I thought the real big deal was that this lowered the requirements for a planet to have life. Before the planet always had to have all the elements available for life, but we have proof that other mixes work, so the chance of finding extraterrestrial life is now even higher.

This.

It is a very big deal for the search for extraterrestrial life. Even for life within our own solar system.
 
Jun 26, 2007
11,925
2
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Hail Ants?!

This is awesome though, this could mean there are humanish intelligent life forms out there that might survive in all sorts of places were wouldn't have considered possible before with some extremely weird physiology.

I for one am looking forward to the first blob-like creature that knows quantum physics. No eyes or hands just a big brain that absorbs methane from his 1000C atmosphere.

There are bacteruim that live inside of volcanoes.
 
Jun 26, 2007
11,925
2
0
I dunno, this seems pretty darned cool to me. This bacterium has biological life processes previously unknown, and that's a rare thing. At least, assuming it does not revert to preferentially using phosphorous in a non-arsenic rich environment. Probably a lot to be learned here. Will be interesting too to see if biologists think this process can be scaled up into higher order creatures.

It's not stranger than bacterium living inside of live volcanoes, life finds a way no matter what the environment is like, all it takes is time.

In higher order organisms the metabolism is quite different though so not our kind, give it a million years though and it will inevitably evolve unless we just fuck up their environment enough as we do with several species every single day these days.