Transition Metal Catalysts Could Be Key to Origin of Life
One of the big, unsolved problems in explaining how life arose on Earth is a chicken-and-egg paradox: How could the basic biochemicals-such as amino acids and nucleotides-have arisen before the biological catalysts (proteins or ribozymes) existed to carry out their formation?”
http://www.biolbull.org/cgi/content/full/219/1/1
I just finished reading the article. Am a medic and should be interested in such of course but I say, it gave me a headache. Will try to read more. Sigh.
That really diffcult to learn Biology,I'm a student who prefer to Physics. 
QUOTE
In rejecting the soup theory the researchers turned to the Earth's chemistry to identify the energy source which could power the first primitive predecessors of living organisms: geochemical gradients across a honeycomb of microscopic natural caverns at hydrothermal vents. These catalytic cells generated lipids, proteins and nucleotides which may have given rise to the first true cells.
http://www.sciencedaily.com/releases/2010/02/100202101245.htm........
QUOTE (->
| QUOTE |
| In rejecting the soup theory the researchers turned to the Earth's chemistry to identify the energy source which could power the first primitive predecessors of living organisms: geochemical gradients across a honeycomb of microscopic natural caverns at hydrothermal vents. These catalytic cells generated lipids, proteins and nucleotides which may have given rise to the first true cells. |
http://www.sciencedaily.com/releases/2010/02/100202101245.htm
........
'Ingredients for Life' Present on Saturn's Moon Enceladus, Say Scientists
http://www.sciencedaily.com/releases/2010/...00209144657.htm
So perhaps it is plausible that Enceladus, as well as Titan, may provide the necessary conditions for organic activity. Everything seems to be going in this direction. What an exciting revelation it would be that we find that Earth is not the only focal point in the entire Universe that has allowed for organic activity! (I never thought it was)
As a matter of fact, doesn't anyone think the day shall come that we determine that evolutionary organic activity, occurring or eventual, is a given wherever the conditions are present? I think that future data will have us looking at 'Earth as the only repository for life' in the same way that we look at the Flat Earth Theory today. If we find activity on Enceladus or Titan, or even in a comet, then we now have two sources of life in one Solar System. At that point, what does simple mathematical extrapolation yield?
........
'Ingredients for Life' Present on Saturn's Moon Enceladus, Say Scientists
http://www.sciencedaily.com/releases/2010/...00209144657.htm
So perhaps it is plausible that Enceladus, as well as Titan, may provide the necessary conditions for organic activity. Everything seems to be going in this direction. What an exciting revelation it would be that we find that Earth is not the only focal point in the entire Universe that has allowed for organic activity! (I never thought it was)
As a matter of fact, doesn't anyone think the day shall come that we determine that evolutionary organic activity, occurring or eventual, is a given wherever the conditions are present? I think that future data will have us looking at 'Earth as the only repository for life' in the same way that we look at the Flat Earth Theory today. If we find activity on Enceladus or Titan, or even in a comet, then we now have two sources of life in one Solar System. At that point, what does simple mathematical extrapolation yield?
QUOTE (soundhertz+Feb 27 2011, 03:44 PM)
http://www.sciencedaily.com/releases/2010/...00202101245.htm
........
http://www.sciencedaily.com/releases/2010/...00209144657.htm
So perhaps it is plausible that Enceladus, as well as Titan, may provide the necessary conditions for organic activity. Everything seems to be going in this direction. What an exciting revelation it would be that we find that Earth is not the only focal point in the entire Universe that has allowed for organic activity! (I never thought it was)
As a matter of fact, doesn't anyone think the day shall come that we determine that evolutionary organic activity, occurring or eventual, is a given wherever the conditions are present? I think that future data will have us looking at 'Earth as the only repository for life' in the same way that we look at the Flat Earth Theory today. If we find activity on Enceladus or Titan, or even in a comet, then we now have two sources of life in one Solar System. At that point, what does simple mathematical extrapolation yield?
I'd love to make the journey to find out. Probes are great but I wish we, as a planet, would be working diligently to get a manned mission out there. Think how exciting that would be for Earthlings.
........
http://www.sciencedaily.com/releases/2010/...00209144657.htm
So perhaps it is plausible that Enceladus, as well as Titan, may provide the necessary conditions for organic activity. Everything seems to be going in this direction. What an exciting revelation it would be that we find that Earth is not the only focal point in the entire Universe that has allowed for organic activity! (I never thought it was)
As a matter of fact, doesn't anyone think the day shall come that we determine that evolutionary organic activity, occurring or eventual, is a given wherever the conditions are present? I think that future data will have us looking at 'Earth as the only repository for life' in the same way that we look at the Flat Earth Theory today. If we find activity on Enceladus or Titan, or even in a comet, then we now have two sources of life in one Solar System. At that point, what does simple mathematical extrapolation yield?
I'd love to make the journey to find out. Probes are great but I wish we, as a planet, would be working diligently to get a manned mission out there. Think how exciting that would be for Earthlings.
going to the moon was insanely dangerous and you want to go to titan?
QUOTE (granpa+Feb 28 2011, 09:55 PM)
going to the moon was insanely dangerous and you want to go to titan?
Sure but I don't think my wife will let me. Don't think old astronauts are in much demand either.
Sure but I don't think my wife will let me. Don't think old astronauts are in much demand either.
QUOTE
Don't think old astronauts are in much demand either.
Darmok, his eyes open.
On a similar note, here's an article out of The Journal of Cosmology:
http://journalofcosmology.com/Life100.html
A scientist is claiming fossils of cyano bacteria in certain asteroids. The photos are very good, but we'll have to await peer conclusions
http://journalofcosmology.com/Life100.html
A scientist is claiming fossils of cyano bacteria in certain asteroids. The photos are very good, but we'll have to await peer conclusions
So, Dr. Rudy Schild is editor-in-chief of the Journal of Cosmology.
Harvard, eh? Weird!
International UFO Congress - Dr Rudy Schild
Rudy Schild on the Drake Equation and Alien Contact
https://www.cfa.harvard.edu/~rschild/
Harvard, eh? Weird!
International UFO Congress - Dr Rudy Schild
Rudy Schild on the Drake Equation and Alien Contact
https://www.cfa.harvard.edu/~rschild/
QUOTE (rpenner+Mar 7 2011, 03:56 AM)
Verdict in: Article too crackpot to be believed. http://scienceblogs.com/pharyngula/2011/03...over_bacter.php
http://www.wired.com/wiredscience/2011/03/...-something-new/
http://rrresearch.blogspot.com/2011/03/is-...-meteorite.html
http://daviddobbs.posterous.com/j-of-cosmo...ets-weirder-yet
Is this the "gist" what you are linking to?
http://en.wikipedia.org/wiki/Pareidolia
Dr. Rudy Schild at least says "inconclusive" but biased toward what we all can agree on.....that life MAY come from elsewhere.
http://www.wired.com/wiredscience/2011/03/...-something-new/
http://rrresearch.blogspot.com/2011/03/is-...-meteorite.html
http://daviddobbs.posterous.com/j-of-cosmo...ets-weirder-yet
Is this the "gist" what you are linking to?
http://en.wikipedia.org/wiki/Pareidolia
Dr. Rudy Schild at least says "inconclusive" but biased toward what we all can agree on.....that life MAY come from elsewhere.
Nasa finally weighs in:
NASA shoots down alien fossil claims
Updated 24 minutes ago
The micro-fossils reportedly found in the meteorites were said to be similar in size and shape to the giant bacterium known as Titanospirillum velox. (Dr Riccardo Guerrero)
Top NASA scientists say there is no scientific evidence to support a colleague's claim that fossils of alien microbes born in outer space had been found in meteorites on Earth.
http://www.abc.net.au/news/stories/2011/03/08/3157645.htm
My money is still on Enceladus/Titan. If something is actually found there, it will be a neat day in science.
NASA shoots down alien fossil claims
Updated 24 minutes ago
The micro-fossils reportedly found in the meteorites were said to be similar in size and shape to the giant bacterium known as Titanospirillum velox. (Dr Riccardo Guerrero)
Top NASA scientists say there is no scientific evidence to support a colleague's claim that fossils of alien microbes born in outer space had been found in meteorites on Earth.
http://www.abc.net.au/news/stories/2011/03/08/3157645.htm
My money is still on Enceladus/Titan. If something is actually found there, it will be a neat day in science.
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