<story><title>How great was the Great Oxidation Event?</title><url>https://eos.org/science-updates/how-great-was-the-great-oxidation-event</url></story><parent_chain></parent_chain><comment><author>thangalin</author><text>My coffee table photobook describes the role of molybdenum in determining the GOE&amp;#x27;s timeline:&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;impacts.to&amp;#x2F;downloads&amp;#x2F;lowres&amp;#x2F;impacts.pdf#page=11&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;impacts.to&amp;#x2F;downloads&amp;#x2F;lowres&amp;#x2F;impacts.pdf#page=11&lt;/a&gt;</text></comment>
<story><title>How great was the Great Oxidation Event?</title><url>https://eos.org/science-updates/how-great-was-the-great-oxidation-event</url></story><parent_chain></parent_chain><comment><author>duxup</author><text>PBS had a wonderful series Ancient Earth that covered the geological history of the earth. &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.pbs.org&amp;#x2F;wgbh&amp;#x2F;nova&amp;#x2F;series&amp;#x2F;ancient-earth&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.pbs.org&amp;#x2F;wgbh&amp;#x2F;nova&amp;#x2F;series&amp;#x2F;ancient-earth&amp;#x2F;&lt;/a&gt;&lt;p&gt;My naive understanding was always that the earth or planets just sort of found a natural state of being after a while and were &amp;#x2F; are just that way now.   It&amp;#x27;s very interesting to see the sea saw type scale of changes that occurred over time.</text></comment>