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[DailyMail UK]Have researchers discovered an alien MEGASTRUCTURE? 'Bizarre' star could be surrounded by a Dyson sphere built by extraterrestrials, researchers claim - Page 15

post #141 of 162
Quote:
Originally Posted by xenophobe View Post

Most of the compounds found in our biochemistry are abundant in the early universe. All the ingredients seem to be out there. With all that we don't know about existence in general, I find it difficult to reason we're one of the first planets to host life.

Just knowing how bizarre and complex cellular mechanics are, it's not a far fetch to say that many of those mechanisms could predate our solar system... like the iron in our blood being blown our way from a past supernova, maybe some primordial genetic information came along with it.

Iron (a single element) and genetic information (a complex compound) are two very different things, and would not be created under the same circumstances.
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post #142 of 162
Quote:
Originally Posted by Tsumi View Post

Iron (a single element) and genetic information (a complex compound) are two very different things, and would not be created under the same circumstances.

Yes, I know. You quoted two separate paragraphs and responded to them as one. Genetic information is more than that, it is a complex structure of complex compounds... if you want to know how DNA evolved from RNA it begins a chicken or egg argument, doesn't it? I don't remember, it's been a while since I did any of that kind of reading.

As to the origin of life... Read the link I posted... It's basically the history of organic material from the big bang just up to the point of where we are today.

I haven't even speculated except to say that cellular mechanics is so bizarrely complex it is hard to imagine how that actually started and that I wouldn't be completely surprised if the origins of some of those mechanics happened somewhere else...
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post #143 of 162
Quote:
Originally Posted by Tsumi View Post

Actually we might be one of the first intelligent life forms in the universe. That may explain why we haven't seen any others yet. The others that arose the same time as us are probably in other galaxies.

http://hubblesite.org/newscenter/archive/releases/2015/35/full/

That would be the creationist view; that out of the billions and billions of stars that have planets similar to Earth, we are the only one with life because we are special.
Edited by aweir - 10/23/15 at 4:20pm
post #144 of 162
Quote:
Originally Posted by xenophobe View Post

Yes, I know. You quoted two separate paragraphs and responded to them as one. Genetic information is more than that, it is a complex structure of complex compounds... if you want to know how DNA evolved from RNA it begins a chicken or egg argument, doesn't it? I don't remember, it's been a while since I did any of that kind of reading.

As to the origin of life... Read the link I posted... It's basically the history of organic material from the big bang just up to the point of where we are today.

I haven't even speculated except to say that cellular mechanics is so bizarrely complex it is hard to imagine how that actually started and that I wouldn't be completely surprised if the origins of some of those mechanics happened somewhere else...

A controversial subject is the one of ancient bacteria fossils found in meteorites.
    
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post #145 of 162
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Originally Posted by PostalTwinkie View Post

A controversial subject is the one of ancient bacteria fossils found in meteorites.


I believe that recently the just discovered the oldest known fossil of life in a crystal.
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post #146 of 162
Zen00, just searched... that's interesting... as an indicator of early life, it's still questionable, but it at least seems to point that the Earth was at least hospitable to life much earlier than thought...

The NASA research paper I listed above states it's likely that the universe was also much more hospitable to life earlier than previously thought... that many of the more complex organic compounds necessary for life could have existed as little as 500m years after the big bang.


Quote:
Originally Posted by PostalTwinkie View Post

A controversial subject is the one of ancient bacteria fossils found in meteorites.

That's certainly one of them. Rosetta's Philae lander found organic material is another.

Plankton growing on the outside surface of a window on the ISS is another good one. Russia found and reported it. Nasa has mostly kept skeptically quiet about it and Germany has confirmed that there was bacterial DNA of some sort but couldn't comment if it was alive or not where it was collected. And other than that, silence and no real comment since, yet ISS is manned and they can easily send out a space walk to try to collect more samples... but either they haven't or don't want to release the results.

I hate to sound tin foil hattish, but the fact is that no further public study of this phenomena has occurred. There was no "big mistake" apology and there has been no real public follow up. It begs the question, what did they actually find? Life doesn't need atmospheric pressure to exist? Or is the DNA potentially something not usually encountered on Earth?

You'd think they would have sequenced it already, as the Germans did find DNA. It would be pretty easy to tell if that was from contamination when those components were manufactured or transported from Earth. Or if it was plankton that probably rose up into the low atmosphere from weather effects. But so far, no real disclosure.
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post #147 of 162
Here are some interesting videos... from http://multimedia.mcb.harvard.edu/

Even if you read about or study cellular biology, there's just something that doesn't actually come across in static photos, drawings and descriptions.

The first one was commissioned by Harvard University nearly a decade ago:

And another on protein packing:
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post #148 of 162
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Originally Posted by aweir View Post

That would be the creationist view; that out of the billions and billions of stars that have planets similar to Earth, we are the only one with life because we are special.

No, it is not. It is just saying we just happen to be one of the first with life due to Earth being one of the first planets to form life as we know it, not that Earth will be the only one ever with life. There has to be a first of everything after all, and maybe we're up there among the firsts. That would explain the fact that we have not observed any alien activities, because there hasn't been enough time for life in the universe to advance to the point of carrying out interstellar activities.
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post #149 of 162
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Originally Posted by Tsumi View Post

No, it is not. It is just saying we just happen to be one of the first with life due to Earth being one of the first planets to form life as we know it, not that Earth will be the only one ever with life. There has to be a first of everything after all, and maybe we're up there among the firsts. That would explain the fact that we have not observed any alien activities, because there hasn't been enough time for life in the universe to advance to the point of carrying out interstellar activities.

Or it could just be we haven't come across the proper window in time to observe. We might be searching for life in places where it exists but we can't tell because the civilization is not old enough for it's transmissions to hit us yet. A civilization 1000 light years away would need to have evolved electronic technology 1000 years before us for us to notice now.
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post #150 of 162
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Originally Posted by xenophobe View Post

Or it could just be we haven't come across the proper window in time to observe. We might be searching for life in places where it exists but we can't tell because the civilization is not old enough for it's transmissions to hit us yet. A civilization 1000 light years away would need to have evolved electronic technology 1000 years before us for us to notice now.

Well yes... the point is that what I linked was not the creationist view/theory, far from it.
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