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	<title>Comments on: Asteroid Impact Created a Worldwide Rain of Carbon Beads</title>
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	<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/</link>
	<description>Space and astronomy news</description>
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		<title>By: alphonso richardson</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-20021</link>
		<dc:creator>alphonso richardson</dc:creator>
		<pubDate>Fri, 09 May 2008 12:58:40 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-20021</guid>
		<description>Kendall
the photo appears to be an electron micrograph.

i read in UK free paper (Metro, May 9, 2008) that this exra/extraterrestrial carbon, under extreme conditions such as impact was partially converted to diamond.
This was  preferentially assimlated into the (exo)skeletons of tiny deep-ocean dwelling organisms, possibly due to the extra weight &amp; resilience, preventing them flooting upwards.</description>
		<content:encoded><![CDATA[<p>Kendall<br />
the photo appears to be an electron micrograph.</p>
<p>i read in UK free paper (Metro, May 9, 2008) that this exra/extraterrestrial carbon, under extreme conditions such as impact was partially converted to diamond.<br />
This was  preferentially assimlated into the (exo)skeletons of tiny deep-ocean dwelling organisms, possibly due to the extra weight &amp; resilience, preventing them flooting upwards.</p>
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		<title>By: Astrofiend</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19776</link>
		<dc:creator>Astrofiend</dc:creator>
		<pubDate>Wed, 07 May 2008 03:40:39 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19776</guid>
		<description>&quot;Ah, wait a minute. The impact was into limestone â€” calcium carbonate. Case closed, other than where did the calcium end up?&quot;

In healthy children&#039;s teeth and bones.</description>
		<content:encoded><![CDATA[<p>&#034;Ah, wait a minute. The impact was into limestone â€” calcium carbonate. Case closed, other than where did the calcium end up?&#034;</p>
<p>In healthy children&#039;s teeth and bones.</p>
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		<title>By: Kendall</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19732</link>
		<dc:creator>Kendall</dc:creator>
		<pubDate>Tue, 06 May 2008 20:48:10 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19732</guid>
		<description>I&#039;m sure this is the wrong place to request this, but would it possible to put captions for the pictures on each story.  This one actually looks like an artists rendition, but the filename implies it&#039;s a photograph.  Anyway, there have many times that I wanted more detail about a picture.

Thanx.</description>
		<content:encoded><![CDATA[<p>I&#039;m sure this is the wrong place to request this, but would it possible to put captions for the pictures on each story.  This one actually looks like an artists rendition, but the filename implies it&#039;s a photograph.  Anyway, there have many times that I wanted more detail about a picture.</p>
<p>Thanx.</p>
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		<title>By: Watchful Stone Guardian</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19722</link>
		<dc:creator>Watchful Stone Guardian</dc:creator>
		<pubDate>Tue, 06 May 2008 20:26:09 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19722</guid>
		<description>900-trillion tonnes of carbon seems like a lot! 900-trillion tonnes of limestone which is certainly not pure carbon would be over 350,000 cubic kilometres of material if my calculations are correct.</description>
		<content:encoded><![CDATA[<p>900-trillion tonnes of carbon seems like a lot! 900-trillion tonnes of limestone which is certainly not pure carbon would be over 350,000 cubic kilometres of material if my calculations are correct.</p>
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		<title>By: John Mendenhall</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19713</link>
		<dc:creator>John Mendenhall</dc:creator>
		<pubDate>Tue, 06 May 2008 19:25:00 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19713</guid>
		<description>900 trillion tons of carbon?  Where did that much carbon come from?  From the comet?  From the Earth?  If from the Earth, it had to be near the impact site.

Ah, wait a minute.  The impact was into limestone --- calcium carbonate.  Case closed, other than where did the calcium end up?</description>
		<content:encoded><![CDATA[<p>900 trillion tons of carbon?  Where did that much carbon come from?  From the comet?  From the Earth?  If from the Earth, it had to be near the impact site.</p>
<p>Ah, wait a minute.  The impact was into limestone &#8212; calcium carbonate.  Case closed, other than where did the calcium end up?</p>
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		<title>By: David</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19707</link>
		<dc:creator>David</dc:creator>
		<pubDate>Tue, 06 May 2008 18:22:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19707</guid>
		<description>It would be interesting if not provocative to compare the amount of carbon cenospheres released from an astroid impact of this magnitude to the amount released from the past 100 years&#039; worth of industrial activity.  My hypothesis is that industrial activity is giving an astroid impact a run for its money.   Whatever the case, I&#039;m willing to bet that the geologic record will give us clues as to what&#039;s in store for us with the presence of a runaway carbon source...</description>
		<content:encoded><![CDATA[<p>It would be interesting if not provocative to compare the amount of carbon cenospheres released from an astroid impact of this magnitude to the amount released from the past 100 years&#039; worth of industrial activity.  My hypothesis is that industrial activity is giving an astroid impact a run for its money.   Whatever the case, I&#039;m willing to bet that the geologic record will give us clues as to what&#039;s in store for us with the presence of a runaway carbon source&#8230;</p>
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		<title>By: Watchful Stone Guardian</title>
		<link>http://www.universetoday.com/2008/05/06/asteroid-impact-created-a-worldwide-rain-of-carbon-beads/comment-page-1/#comment-19704</link>
		<dc:creator>Watchful Stone Guardian</dc:creator>
		<pubDate>Tue, 06 May 2008 18:15:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/?p=14077#comment-19704</guid>
		<description>It was the Troodon&#039;s Industrial Revolution and resulting Climate Change 65 million years ago that killed the dinosaurs. The asteroid impact was just co-incidence!</description>
		<content:encoded><![CDATA[<p>It was the Troodon&#039;s Industrial Revolution and resulting Climate Change 65 million years ago that killed the dinosaurs. The asteroid impact was just co-incidence!</p>
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