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	<title>Nancy Atkinson &#187; Mars</title>
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	<description>Just tryin&#039; to keep track of the Universe...</description>
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		<title>Flying Over the Cliffs of Bahram Vallis</title>
		<link>http://www.nancyatkinson.com/blog/2010/01/29/flying-over-the-cliffs-of-bahram-vallis/</link>
		<comments>http://www.nancyatkinson.com/blog/2010/01/29/flying-over-the-cliffs-of-bahram-vallis/#comments</comments>
		<pubDate>Fri, 29 Jan 2010 19:19:27 +0000</pubDate>
		<dc:creator>Nancy</dc:creator>
				<category><![CDATA[Cool Stuff]]></category>
		<category><![CDATA[Mars]]></category>

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		<description><![CDATA[
A couple of days ago I posted on Universe Today some new Mars flyover videos created by Doug Ellison from UnmannedSpaceflight.com. He now has rendered a few more, and this one is my favorite:  Bahram Vallis.  Hang on to your hat when you approach the cliffs!  Doug is able to create these [...]]]></description>
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<p>A couple of days ago I posted on Universe Today some new Mars flyover videos created by Doug Ellison from <a href="http://www.unmannedspaceflight.com/">UnmannedSpaceflight.com.</a> He now has rendered a few more, and this one is my favorite:  Bahram Vallis.  Hang on to your hat when you approach the cliffs!  Doug is able to create these amazing 3-D flyover videos from data from the HiRISE camera on the Mars Reconnaissance Orbiter.  Using DEM (Digital Elevation Model)&#8211; (also known as DTM Digital Terrain Model) files provided by the HiRISE team. Since he is using actual high-resolution data from HiRISE, Doug says the terrain seen in the movies has accurate vertical scaling and is not exaggerated. You can see more on Doug&#8217;s <a href="http://www.youtube.com/user/unmannedspaceflight">You Tube channel</a>, or see <a href="http://www.universetoday.com/2010/01/27/new-amazingmars-flyover-videos/">my post on Universe Today. </a></p>
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