Scientists redo what may be life’s first spark.

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Profile Wiggo
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Message 1611084 - Posted: 9 Dec 2014, 0:54:55 UTC

I found this to be interesting.

http://www.news.com.au/technology/science/scientists-redo-what-may-be-lifes-first-spark/story-fn5fsgyc-1227149429932

SCIENTISTS in a lab used a powerful laser to re-create what might have been the original spark of life on Earth.

Researchers zapped clay and a chemical soup with the laser to simulate the energy of a speeding asteroid smashing into the planet. They ended up creating what can be considered crucial pieces of the building blocks of life.

The experiment produced all four chemical bases needed to make RNA, a simpler relative of DNA, the blueprint of life. From these bases, there are many still-mysterious steps that must happen for life to emerge. But this is a potential starting point in that process......

.....Some of the earliest life on Earth seemed to coincide with a period called the Late Heavy Bombardment, when the solar system’s asteroid belt was bigger and stray space rocks hit our planet more often, said study co-author David Nesvorny, a planetary scientist at the Southwest Research Institute in Colorado.

Outside experts were divided about the importance of the experiment.....

Cheers.
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anniet
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Message 1611378 - Posted: 9 Dec 2014, 16:56:18 UTC

I find it to be interesting too! Thanks Wiggo :)
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Profile Lynn Special Project $75 donor
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Message 1611506 - Posted: 10 Dec 2014, 2:29:10 UTC - in response to Message 1611378.  

From the article. Thanks Wiggo :)

For this whole chemical reaction to work, the extreme energy from the asteroid collision would have had to break down molecules into less-complex chemicals, which then could re-form into the more vital combinations. The type of asteroid impact that might have sparked this process also snuffed out the dinosaurs billions of years later, Nesvorny said.

2 in one, not bad.
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Profile Bob DeWoody
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Message 1611510 - Posted: 10 Dec 2014, 2:36:57 UTC

I thought this was done decades ago by a scientist introducing an electric current into a sealed system containing the gases known to be present in the atmosphere.

Even so they are a long way from taking a pile of the precise components of a living organism and breathing life into it.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1611610 - Posted: 10 Dec 2014, 8:10:54 UTC

What amazes me is the difference:
1. even few molecules of biological materials is called Life on some planet or asteroid...even though there isn't a single cell!
2. coming down to Earth: no Life is not until 9 weeks, when the fetus reaches sentient being! Even though fatus like that has 8g & millions of cells...
:(

Yes, I like scientist more! they seem more human to me! ;)


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Message boards : Science (non-SETI) : Scientists redo what may be life’s first spark.


 
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