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	<id>http://marspedia.org/index.php?action=history&amp;feed=atom&amp;title=Venus</id>
	<title>Venus - Revision history</title>
	<link rel="self" type="application/atom+xml" href="http://marspedia.org/index.php?action=history&amp;feed=atom&amp;title=Venus"/>
	<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;action=history"/>
	<updated>2026-05-16T01:23:04Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.34.2</generator>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=136153&amp;oldid=prev</id>
		<title>Multivac at 10:55, 25 July 2020</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=136153&amp;oldid=prev"/>
		<updated>2020-07-25T10:55:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 10:55, 25 July 2020&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at an altitude of approximately 50 kilometers, the pressure and atmospheric temperature are Earth-like. It has been suggested that floating settlements, using breathable air as a lifting gas, could be used to colonize Venus.  From the chemical break down of carbon dioxide and sulfuric acid and from free nitrogen in Venus' atmosphere carbon, oxygen, nitrogen, sulfur and hydrogen are all available on Venus.  This could provide the local source for plastic and carbon fiber building materials, breathable air and water.  Unfortunately, due to a lack of mining opportunities, Venus settlements cannot be built completely from local materials.  A colony on Venus would require a thriving colony on Mars, Luna or more probably both as a prerequisite because the large initial investment of material to initiate a colony in Venus' atmosphere could not be reasonably be lifted out of Earth's gravity well.  A Venus colony should provide continuing trade opportunities for a Mars colony.  There could be a three way interplanetary trade in which Venus provides carbon and nitrogen to Luna, Luna provides solar cells and metals to Mars and Venus, and Mars provides hydrogen to Luna and Venus.  Mars, Venus and Luna would together provide various materials to orbiting habitats and factories in cis lunar space.  Trade and economic development will be essential for all human colonization beyond Earth.   &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at an altitude of approximately 50 kilometers, the pressure and atmospheric temperature are Earth-like. It has been suggested that floating settlements, using breathable air as a lifting gas, could be used to colonize Venus&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;ref&amp;gt;https://www.youtube.com/watch?v=u0457RLA0YU&amp;lt;/ref&amp;gt;&lt;/ins&gt;.  From the chemical break down of carbon dioxide and sulfuric acid and from free nitrogen in Venus' atmosphere carbon, oxygen, nitrogen, sulfur and hydrogen are all available on Venus.  This could provide the local source for plastic and carbon fiber building materials, breathable air and water.  Unfortunately, due to a lack of mining opportunities, Venus settlements cannot be built completely from local materials.  A colony on Venus would require a thriving colony on Mars, Luna or more probably both as a prerequisite because the large initial investment of material to initiate a colony in Venus' atmosphere could not be reasonably be lifted out of Earth's gravity well.  A Venus colony should provide continuing trade opportunities for a Mars colony.  There could be a three way interplanetary trade in which Venus provides carbon and nitrogen to Luna, Luna provides solar cells and metals to Mars and Venus, and Mars provides hydrogen to Luna and Venus.  Mars, Venus and Luna would together provide various materials to orbiting habitats and factories in cis lunar space.  Trade and economic development will be essential for all human colonization beyond Earth.   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Commerce and Economics]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Commerce and Economics]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Multivac</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=127137&amp;oldid=prev</id>
		<title>Jburk at 21:26, 17 December 2018</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=127137&amp;oldid=prev"/>
		<updated>2018-12-17T21:26:51Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 21:26, 17 December 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot; &gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Commerce and Economics]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Jburk</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=4697&amp;oldid=prev</id>
		<title>Farred: expansion</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=4697&amp;oldid=prev"/>
		<updated>2009-11-20T04:09:15Z</updated>

		<summary type="html">&lt;p&gt;expansion&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 04:09, 20 November 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at an altitude of approximately 50 kilometers, the pressure and atmospheric temperature are Earth-like. It has been suggested that floating settlements, using breathable air as a lifting gas, could be used to colonize Venus. Unfortunately, due to a lack of mining opportunities, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/del&gt;settlements &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;can not &lt;/del&gt;be built from local &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;resources&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Decomposing sulfuric acid&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;H2SO4&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;may &lt;/del&gt;provide &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;breathing oxygen &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;water &lt;/del&gt;for &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;life-support&lt;/del&gt;. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;  &lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at an altitude of approximately 50 kilometers, the pressure and atmospheric temperature are Earth-like. It has been suggested that floating settlements, using breathable air as a lifting gas, could be used to colonize Venus. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; From the chemical break down of carbon dioxide and sulfuric acid and from free nitrogen in Venus' atmosphere carbon, oxygen, nitrogen, sulfur and hydrogen are all available on Venus.  This could provide the local source for plastic and carbon fiber building materials, breathable air and water.  &lt;/ins&gt;Unfortunately, due to a lack of mining opportunities, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Venus &lt;/ins&gt;settlements &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;cannot &lt;/ins&gt;be built &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;completely &lt;/ins&gt;from local &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;materials.  A colony on Venus would require a thriving colony on Mars, Luna or more probably both as a prerequisite because the large initial investment of material to initiate a colony in Venus' atmosphere could not be reasonably be lifted out of Earth's gravity well.  A Venus colony should provide continuing trade opportunities for a Mars colony&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; There could be a three way interplanetary trade in which Venus provides carbon and nitrogen to Luna, Luna provides solar cells and metals to Mars and Venus&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and Mars provides hydrogen to Luna and Venus.  Mars&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Venus and Luna would together &lt;/ins&gt;provide &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;various materials to orbiting habitats and factories in cis lunar space.  Trade &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;economic development will be essential &lt;/ins&gt;for &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;all human colonization beyond Earth&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Farred</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=4693&amp;oldid=prev</id>
		<title>24.176.206.139: Added new info for Venus colonization.</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=4693&amp;oldid=prev"/>
		<updated>2009-11-15T04:38:40Z</updated>

		<summary type="html">&lt;p&gt;Added new info for Venus colonization.&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 04:38, 15 November 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;higher altitudes&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The climate is tolerable&lt;/del&gt;. It has been suggested that floating settlements could be used to colonize Venus, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;but &lt;/del&gt;due to a lack of mining opportunities the settlements &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;cat &lt;/del&gt;not be built from local resources.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;an altitude of approximately 50 kilometers&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the pressure and atmospheric temperature are Earth-like&lt;/ins&gt;. It has been suggested that floating settlements&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, using breathable air as a lifting gas, &lt;/ins&gt;could be used to colonize Venus&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. Unfortunately&lt;/ins&gt;, due to a lack of mining opportunities&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/ins&gt;the settlements &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;can &lt;/ins&gt;not be built from local resources. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Decomposing sulfuric acid, H2SO4, may provide breathing oxygen and water for life-support.   &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>24.176.206.139</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=4297&amp;oldid=prev</id>
		<title>Rfc: lack of mining opportunities</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=4297&amp;oldid=prev"/>
		<updated>2009-01-02T21:49:13Z</updated>

		<summary type="html">&lt;p&gt;lack of mining opportunities&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 21:49, 2 January 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable. It has been suggested that floating settlements could be used to colonize Venus.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable. It has been suggested that floating settlements could be used to colonize Venus&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, but due to a lack of mining opportunities the settlements cat not be built from local resources&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Rfc</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=4293&amp;oldid=prev</id>
		<title>Laertes: floating settlement</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=4293&amp;oldid=prev"/>
		<updated>2009-01-02T19:35:29Z</updated>

		<summary type="html">&lt;p&gt;floating settlement&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 19:35, 2 January 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable.  &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after [[Mercury]] and before [[Earth]]. It has an extremely thick [[atmosphere]], and temperatures at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. It has been suggested that floating settlements could be used to colonize Venus&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Laertes</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=4148&amp;oldid=prev</id>
		<title>Laertes: typo and interlinks</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=4148&amp;oldid=prev"/>
		<updated>2008-12-06T22:43:55Z</updated>

		<summary type="html">&lt;p&gt;typo and interlinks&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 22:43, 6 December 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after Mercury and before Earth. It has an extremely thick atmosphere, and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tempretures &lt;/del&gt;at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable.  &lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;Mercury&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] &lt;/ins&gt;and before &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;Earth&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]]&lt;/ins&gt;. It has an extremely thick &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[&lt;/ins&gt;atmosphere&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]]&lt;/ins&gt;, and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;temperatures &lt;/ins&gt;at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{stub}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Laertes</name></author>
		
	</entry>
	<entry>
		<id>http://marspedia.org/index.php?title=Venus&amp;diff=3264&amp;oldid=prev</id>
		<title>T.Neo: Created page</title>
		<link rel="alternate" type="text/html" href="http://marspedia.org/index.php?title=Venus&amp;diff=3264&amp;oldid=prev"/>
		<updated>2008-06-18T09:17:04Z</updated>

		<summary type="html">&lt;p&gt;Created page&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;'''Venus''' is the second planet from the sun, after Mercury and before Earth. It has an extremely thick atmosphere, and tempretures at the surface are hot enough to melt lead. However, at higher altitudes, The climate is tolerable. &lt;br /&gt;
&lt;br /&gt;
{{stub}}&lt;/div&gt;</summary>
		<author><name>T.Neo</name></author>
		
	</entry>
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