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	<title>Comments on: Landslide on Mars triggered by an impact</title>
	<atom:link href="http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/</link>
	<description>I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog.</description>
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		<title>By: Radwaste</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-427012</link>
		<dc:creator>Radwaste</dc:creator>
		<pubDate>Sun, 09 Oct 2011 16:20:03 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-427012</guid>
		<description>I suggest a name for this crater: &quot;Coyote&quot;</description>
		<content:encoded><![CDATA[<p>I suggest a name for this crater: &#8220;Coyote&#8221;</p>
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		<title>By: Joseph</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264773</link>
		<dc:creator>Joseph</dc:creator>
		<pubDate>Tue, 11 May 2010 22:19:39 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264773</guid>
		<description>@Patricia HAHAHA! That was awesome!

@UmTutSut I myself not having a thorough understanding either I would hazard a guess that the surface level is covered in a lighter more easily blown material then what ever is underneath. There may also be a bleaching component at work or other weathering effect. 

Either way the upper layer having fallen away would expose the lower layer no? As well as dragging some of the underlying material with it and all of it getting mixed up. The upper lighter layer would have been thin and probably over whelmed color wise by the darker layers beneath.</description>
		<content:encoded><![CDATA[<p>@Patricia HAHAHA! That was awesome!</p>
<p>@UmTutSut I myself not having a thorough understanding either I would hazard a guess that the surface level is covered in a lighter more easily blown material then what ever is underneath. There may also be a bleaching component at work or other weathering effect. </p>
<p>Either way the upper layer having fallen away would expose the lower layer no? As well as dragging some of the underlying material with it and all of it getting mixed up. The upper lighter layer would have been thin and probably over whelmed color wise by the darker layers beneath.</p>
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		<title>By: Brian Davis</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264634</link>
		<dc:creator>Brian Davis</dc:creator>
		<pubDate>Tue, 11 May 2010 15:54:24 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264634</guid>
		<description>One odd thing to me is the apparent pristine structures of the craters downhill with the impact. For a significant slide, the disturbance seems confined to only the surface materials, and uniformly the surface layers - no obvious shadowing of the surface downhill of rocks or craters, no enhancement of effects on steeper slopes, etc. Surprising (to me, at least).</description>
		<content:encoded><![CDATA[<p>One odd thing to me is the apparent pristine structures of the craters downhill with the impact. For a significant slide, the disturbance seems confined to only the surface materials, and uniformly the surface layers &#8211; no obvious shadowing of the surface downhill of rocks or craters, no enhancement of effects on steeper slopes, etc. Surprising (to me, at least).</p>
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		<title>By: John Keller</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264614</link>
		<dc:creator>John Keller</dc:creator>
		<pubDate>Tue, 11 May 2010 12:45:30 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264614</guid>
		<description>It looks like the shadow cast by the Tar Monster from Scooby Doo.</description>
		<content:encoded><![CDATA[<p>It looks like the shadow cast by the Tar Monster from Scooby Doo.</p>
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		<title>By: UmTutSut</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264611</link>
		<dc:creator>UmTutSut</dc:creator>
		<pubDate>Tue, 11 May 2010 12:12:52 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264611</guid>
		<description>OK, &#039;splain, Loocie. I know the article says, &quot;...this landslide disturbed either bare substrate or compacted, older dust.&quot; That doesn&#039;t explain to me, limited as is my knowledge of Martian surface processes, how a large dark avalance results from light-colored surface materials. Would someone more knowledgable explain in layperson&#039;s terms?</description>
		<content:encoded><![CDATA[<p>OK, &#8216;splain, Loocie. I know the article says, &#8220;&#8230;this landslide disturbed either bare substrate or compacted, older dust.&#8221; That doesn&#8217;t explain to me, limited as is my knowledge of Martian surface processes, how a large dark avalance results from light-colored surface materials. Would someone more knowledgable explain in layperson&#8217;s terms?</p>
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		<title>By: Todd W.</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264610</link>
		<dc:creator>Todd W.</dc:creator>
		<pubDate>Tue, 11 May 2010 12:09:10 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264610</guid>
		<description>Clearly it is the shadow of a ghost (Space Ghost?  Ghosts of Mars?), arms raised.</description>
		<content:encoded><![CDATA[<p>Clearly it is the shadow of a ghost (Space Ghost?  Ghosts of Mars?), arms raised.</p>
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		<title>By: Torbjörn Larsson, OM</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264605</link>
		<dc:creator>Torbjörn Larsson, OM</dc:creator>
		<pubDate>Tue, 11 May 2010 11:29:48 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264605</guid>
		<description>The impact of impacts, &quot;meta-impacting&quot;, huh?

I know that HiRISE resolution is less than that, but to actually note the effects of individual rocks on the landscape at those dimensions (even if by a slide and a crater much larger) is amazing.

On another note, marstronauts will have to face dual dangers when out exploring. Soon you will tell me even the minutest dust on Mars is a danger. 

Wouldn&#039;t it be ironic if the only comparatively safe solar system body to explore outside Earth would be Titan, on account of its similar atmosphere? Dense enough to protect from impactors and weather away the instabilities of the landscape and roughness of dust, while not prohibitively dense.</description>
		<content:encoded><![CDATA[<p>The impact of impacts, &#8220;meta-impacting&#8221;, huh?</p>
<p>I know that HiRISE resolution is less than that, but to actually note the effects of individual rocks on the landscape at those dimensions (even if by a slide and a crater much larger) is amazing.</p>
<p>On another note, marstronauts will have to face dual dangers when out exploring. Soon you will tell me even the minutest dust on Mars is a danger. </p>
<p>Wouldn&#8217;t it be ironic if the only comparatively safe solar system body to explore outside Earth would be Titan, on account of its similar atmosphere? Dense enough to protect from impactors and weather away the instabilities of the landscape and roughness of dust, while not prohibitively dense.</p>
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		<title>By: mike burkhart</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264604</link>
		<dc:creator>mike burkhart</dc:creator>
		<pubDate>Tue, 11 May 2010 11:25:14 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264604</guid>
		<description>Well this is amazing of course this happens on Earth but with snow insted of dust.Buy the way the movie Futureworld witch is the sequal to Westworld shows skiing on Mars it only simulated thro.I think if ihabit other planets we will have new sports.</description>
		<content:encoded><![CDATA[<p>Well this is amazing of course this happens on Earth but with snow insted of dust.Buy the way the movie Futureworld witch is the sequal to Westworld shows skiing on Mars it only simulated thro.I think if ihabit other planets we will have new sports.</p>
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		<title>By: Patricia</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264586</link>
		<dc:creator>Patricia</dc:creator>
		<pubDate>Tue, 11 May 2010 06:43:55 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264586</guid>
		<description>Speaking of Mars, have you seen &quot;Total Recall: The Musical&quot; yet? It&#039;s BREATHTAKING! ;-)
&quot;I&#039;ll find out who I am, by climbing da mountains of Mars!
&lt;object width=&quot;480&quot; height=&quot;385&quot;&gt;&lt;param name=&quot;movie&quot; value=&quot;http://www.youtube.com/v/ej3Szj6WcCY&amp;hl=en_US&amp;fs=1&amp;&quot;&gt;&lt;/param&gt;&lt;param name=&quot;allowFullScreen&quot; value=&quot;true&quot;&gt;&lt;/param&gt;&lt;param name=&quot;allowscriptaccess&quot; value=&quot;always&quot;&gt;&lt;/param&gt;&lt;embed src=&quot;http://www.youtube.com/v/ej3Szj6WcCY&amp;hl=en_US&amp;fs=1&amp;&quot; type=&quot;application/x-shockwave-flash&quot; allowscriptaccess=&quot;always&quot; allowfullscreen=&quot;true&quot; width=&quot;480&quot; height=&quot;385&quot;&gt;&lt;/embed&gt;&lt;/object&gt;</description>
		<content:encoded><![CDATA[<p>Speaking of Mars, have you seen &#8220;Total Recall: The Musical&#8221; yet? It&#8217;s BREATHTAKING! <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /><br />
&#8220;I&#8217;ll find out who I am, by climbing da mountains of Mars!<br />
<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/ej3Szj6WcCY&#038;hl=en_US&#038;fs=1&#038;"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ej3Szj6WcCY&#038;hl=en_US&#038;fs=1&#038;" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object></p>
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		<title>By: DLC</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264585</link>
		<dc:creator>DLC</dc:creator>
		<pubDate>Tue, 11 May 2010 06:39:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264585</guid>
		<description>Bah! Obviously it&#039;s the reptilians testing a new weapon ! somebody call David Icke!</description>
		<content:encoded><![CDATA[<p>Bah! Obviously it&#8217;s the reptilians testing a new weapon ! somebody call David Icke!</p>
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		<title>By: Messier Tidy Upper</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264580</link>
		<dc:creator>Messier Tidy Upper</dc:creator>
		<pubDate>Tue, 11 May 2010 06:10:37 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264580</guid>
		<description>@ ^ LcNessie : You can ski on &lt;u&gt;sand&lt;/u&gt; - What The Hell!? Besides you&#039;d need a spacesuit to do &lt;i&gt;anything&lt;/i&gt; on Mars (other than die quickly) - at least currently.

Great image  &amp; news - thanks BA &amp; HiRISE folks. :-)</description>
		<content:encoded><![CDATA[<p>@ ^ LcNessie : You can ski on <u>sand</u> &#8211; What The Hell!? Besides you&#8217;d need a spacesuit to do <i>anything</i> on Mars (other than die quickly) &#8211; at least currently.</p>
<p>Great image  &#038; news &#8211; thanks BA &#038; HiRISE folks. <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
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		<title>By: LcNessie</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264578</link>
		<dc:creator>LcNessie</dc:creator>
		<pubDate>Tue, 11 May 2010 06:04:30 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264578</guid>
		<description>I guess that (sand)skiing on that particular slope is a *wee* bit dangerous and out of the question? ;)

Awesome picture...</description>
		<content:encoded><![CDATA[<p>I guess that (sand)skiing on that particular slope is a *wee* bit dangerous and out of the question? <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>Awesome picture&#8230;</p>
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		<title>By: Ian O'Neill</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2010/05/10/landslide-on-mars-triggered-by-an-impact/comment-page-1/#comment-264530</link>
		<dc:creator>Ian O'Neill</dc:creator>
		<pubDate>Tue, 11 May 2010 01:09:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/?p=15398#comment-264530</guid>
		<description>But who&#039;s to say the landslide didn&#039;t cause the meteorite impact, huh?! Oh, wait. I&#039;m being needlessly argumentative, been spending waaaay too much time reading blog comments...

;)</description>
		<content:encoded><![CDATA[<p>But who&#8217;s to say the landslide didn&#8217;t cause the meteorite impact, huh?! Oh, wait. I&#8217;m being needlessly argumentative, been spending waaaay too much time reading blog comments&#8230;</p>
<p> <img src='http://blogs.discovermagazine.com/badastronomy/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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