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Comets and life
January 24, 2015 at 1:05 am
Have we seen this yet?
 Quote:Scientists using Europe’s comet-orbiting Rosetta spacecraft have discovered that the complicated ancient body is coated with surprisingly simple organic molecules and surrounded by a changing cloud of gases
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RE: Comets and life
January 25, 2015 at 8:31 pm
I seen a article saying that comets and meteors having binary DNA but that is interesting.
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RE: Comets and life
January 25, 2015 at 10:10 pm
I find this article is not well-written and rather strange. It's claiming that all kinds of things are unusual or unexpected, but I'm missing clearer statements by some scientists which put those things in context. So it's made up of a lot of co2, for example, and they quote someone that they were taught differently - but how big of a surprise is this to the current scientific community? Why did they expect to find more complex hydrocarbons?
(January 25, 2015 at 8:31 pm)dyresand Wrote: I seen a article saying that comets and meteors having binary DNA but that is interesting.
That sounds very dubious. That would be the find of the century.
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RE: Comets and life
January 25, 2015 at 10:18 pm
Landing on a comet is a pretty spectacular achievement. I would expect some fairly magnificent findings to come from it.
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RE: Comets and life
January 25, 2015 at 10:31 pm
Just be careful with your choice of wardrobe while doing it.
Landing on a comet, I mean.
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RE: Comets and life
January 25, 2015 at 11:32 pm
(This post was last modified: January 25, 2015 at 11:54 pm by IATIA.)
(January 25, 2015 at 10:10 pm)Alex K Wrote: I find this article is not well-written and rather strange. There probably is a better written article, but as this was the first one I came across, I thought I would post for interest and googling could possibly get one a better written more informative article.
This is just preliminary information. (January 25, 2015 at 10:10 pm)Alex K Wrote: It's claiming that all kinds of things are unusual or unexpected, but I'm missing clearer statements by some scientists which put those things in context. So it's made up of a lot of co2, for example, and they quote someone that they were taught differently - but how big of a surprise is this to the current scientific community? Why did they expect to find more complex hydrocarbons? The traditional description of a comet has always been the 'dirty snowball'. Finding the hydrocarbons was unexpected, but now found, they expected the same as found in the meteorites. (January 25, 2015 at 8:31 pm)dyresand Wrote: I seen a article saying that comets and meteors having binary DNA but that is interesting. The headline was DNA found, but what was found were some building blocks of DNA.
You make people miserable and there's nothing they can do about it, just like god.
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RE: Comets and life
January 26, 2015 at 12:42 pm
(January 25, 2015 at 10:10 pm)Alex K Wrote: I find this article is not well-written and rather strange. It's claiming that all kinds of things are unusual or unexpected, but I'm missing clearer statements by some scientists which put those things in context. So it's made up of a lot of co2, for example, and they quote someone that they were taught differently - but how big of a surprise is this to the current scientific community? Why did they expect to find more complex hydrocarbons?
(January 25, 2015 at 8:31 pm)dyresand Wrote: I seen a article saying that comets and meteors having binary DNA but that is interesting.
That sounds very dubious. That would be the find of the century.
http://www.dailygalaxy.com/my_weblog/201...nics-.html
http://lightyears.blogs.cnn.com/2011/08/...eteorites/
It has been found years ago and nasa pretty much said building blocks of life can be found in space.
http://www.nasa.gov/topics/solarsystem/f...rites.html
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RE: Comets and life
January 26, 2015 at 8:37 pm
DNA building blocks, not DNA. Not to dismiss the find by any means, but actual DNA would be an universe shattering find. To believe the probability of alien life is one thing, but to actually find it ... ?
You make people miserable and there's nothing they can do about it, just like god.
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Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
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RE: Comets and life
January 27, 2015 at 8:36 am
(January 25, 2015 at 10:18 pm)Minimalist Wrote: Landing on a comet is a pretty spectacular achievement. I would expect some fairly magnificent findings to come from it.
Oh but Min, surely you must have heard.
What is far more important was that the guy heading the project was wearing a shirt that wasn't feminist-friendly!
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RE: Comets and life
January 27, 2015 at 10:13 am
(This post was last modified: January 27, 2015 at 10:15 am by Anomalocaris.)
(January 25, 2015 at 8:31 pm)dyresand Wrote: I seen a article saying that comets and meteors having binary DNA but that is interesting.
Considering how fragile DNA is, and how easily it is broken down in even benign environments, I would say DNA molecules native to comets and meteors is as close as anything can come to being impossible.
(January 26, 2015 at 8:37 pm)IATIA Wrote: DNA building blocks, not DNA. Not to dismiss the find by any means, but actual DNA would be an universe shattering find. To believe the probability of alien life is one thing, but to actually find it ... ?
Actual DNA survivng for presumably prolonged period on a body exposed to hard vacuumed and radiation of space would also shatter our belief that we understand chemistry.
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