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  31. <media:credit><![CDATA[Bruce Shafer <em>Stocktrek Images and Science Source</em>]]></media:credit>
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  58. <media:credit><![CDATA[Artem Peteriatko<em> Getty Images</em>]]></media:credit>
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  67. <media:description type="html"><![CDATA[<strong>1921:</strong> &ldquo;The &lsquo;solar wind&rsquo; of particles sweeps the earth's magnetic field into a magnetosphere (<em>gray</em>). It in turn causes a shock front (<em>red</em>). When the moon is in the magnetosphere, its magnetic environment is dominated by the earth's. The intermediate magnetosheath (<em>light-colored area</em>) has erratic solar-particle flow and the most turbulent fields of the lunar orbit.&rdquo;]]></media:description>
  68. <media:credit><![CDATA[<strong>Dan Todd; <em>Scientific American</em></strong>, Vol. 225, No. 2; August 1971]]></media:credit>
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  77. <media:credit><![CDATA[<em>Scientific American Space &amp; Physics</em>, Aug-Sep 2021; U.S. Department of Defense]]></media:credit>
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  86. <media:credit><![CDATA[Getty Images]]></media:credit>
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  93. <description>&lt;p&gt;Some astronomers argue the space agency&amp;rsquo;s next flagship observatory will memorialize discrimination. Others are waiting for more evidence&lt;/p&gt;</description>
  94. <media:content url="https://static.scientificamerican.com/sciam/cache/file/C584865C-4CC8-4B91-A61B659F245C497D_source.jpeg" fileSize="362297" type="image/jpeg" expression="full" width="790" height="496">
  95. <media:description type="html"><![CDATA[The James Webb Space Telescope, which is scheduled to launch this year.]]></media:description>
  96. <media:credit><![CDATA[Chris Gunn <em>NASA</em>]]></media:credit>
  97. </media:content><dc:creator>Alexandra Witze, Nature magazine</dc:creator><category>Policy</category><category>Space &amp; Physics</category><category>The Sciences</category></item>
  98. <item>
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  100. <link>https://www.scientificamerican.com/article/quantum-mechanics-platos-cave-and-the-blind-piranha/</link>
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  107. <item>
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  114. <media:credit><![CDATA[Jeff Greenberg <em>Getty Images</em>]]></media:credit>
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  116. <item>
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  122. <media:content url="https://static.scientificamerican.com/sciam/cache/file/C37E3BBB-3409-41E7-ABB3E812712BB983_source.jpg" fileSize="1127646" type="image/jpeg" expression="full" width="790" height="496">
  123. <media:description type="html"><![CDATA[A computer-generated view of the ankylosaur Euoplocephalus.]]></media:description>
  124. <media:credit><![CDATA[WitmerLab at Ohio University]]></media:credit>
  125. </media:content><dc:creator>Aaron Martin</dc:creator><category>Evolution</category><category>The Sciences</category></item>
  126. <item>
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  128. <link>https://www.scientificamerican.com/podcast/episode/moths-have-an-acoustic-invisibility-cloak-to-stay-under-bats-radar/</link>
  129. <guid isPermaLink="false">F23E6821-9C85-4516-B094999D0FFE0B98</guid>
  130. <pubDate>Wed, 21 Jul 2021 12:00:00 GMT</pubDate>
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  132. <media:content url="https://static.scientificamerican.com/sciam/cache/file/7596808A-AB7E-45F8-B1B97883484F9C6C_source.jpg" fileSize="3790478" type="image/jpeg" expression="full" width="790" height="496">
  133. <media:description type="html"><![CDATA[Extreme magnification of moth wing scales.]]></media:description>
  134. <media:credit><![CDATA[Getty Images]]></media:credit>
  135. </media:content><dc:creator>Karen Hopkin</dc:creator><enclosure url="http://flex.acast.com/www.scientificamerican.com/podcast/podcast.mp3?fileId=C5E9F496-9849-477E-8F3FF2D4A8DD582E" length="3989959" type="audio/mpeg" />
  136. <itunes:duration>02:45</itunes:duration>
  137. <itunes:author>Scientific American</itunes:author><category>Evolution</category><category>The Sciences</category></item>
  138. <item>
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  140. <link>https://www.scientificamerican.com/article/hardy-microbes-hint-at-possibilities-for-extraterrestrial-life/</link>
  141. <guid isPermaLink="false">400F2788-74C9-4305-9AA89B74E5F6FBF6</guid>
  142. <pubDate>Wed, 21 Jul 2021 10:45:00 GMT</pubDate>
  143. <description>&lt;p&gt;Studies of extreme ecosystems on Earth can guide the search for Martian life and may reveal the fundamental limits of biology&lt;/p&gt;</description>
  144. <media:content url="https://static.scientificamerican.com/sciam/cache/file/5241EA38-8A3A-4B64-AD84A78CE5EF08FB_source.jpg" fileSize="19868940" type="image/jpeg" expression="full" width="790" height="496">
  145. <media:description type="html"><![CDATA[Vivid colors of Yellowstone National Park&rsquo;s Grand Prismatic Spring come from various populations of heat-loving microorganisms that thrive in the high-temperature water. Such extreme ecosystems could offer vital clues to astrobiologists searching for extraterrestrial life.]]></media:description>
  146. <media:credit><![CDATA[Peter Adams <em>Getty Images</em>]]></media:credit>
  147. </media:content><dc:creator>Brianne Palmer</dc:creator><category>Biology</category><category>Space &amp; Physics</category><category>The Sciences</category></item>
  148. <item>
  149. <title>Jeff Bezos Launches into Space on Blue Origin&apos;s First Astronaut Flight</title>
  150. <link>https://www.scientificamerican.com/article/jeff-bezos-launches-into-space-on-blue-origins-first-astronaut-flight/</link>
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  153. <description>&lt;p&gt;The billionaire and three others take a suborbital trip onboard the craft &lt;em&gt;New Shepard&lt;/em&gt;&lt;/p&gt;</description>
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  155. <media:description type="html"><![CDATA[The New Shepard Blue Origin rocket lifts-off from the launch pad carrying Jeff Bezos along with his brother Mark Bezos, 18-year-old Oliver Daemen, and 82-year-old Wally Funk prepare to launch on July 20, 2021 in Van Horn, Texas.]]></media:description>
  156. <media:credit><![CDATA[Joe Raedle <em>Getty Images</em>]]></media:credit>
  157. </media:content><dc:creator>Mike Wall, SPACE.com</dc:creator><category>Space &amp; Physics</category><category>The Sciences</category></item>
  158. <item>
  159. <title>Behold the &apos;Borg&apos;: Massive DNA Structures Perplex Scientists</title>
  160. <link>https://www.scientificamerican.com/article/behold-the-borg-massive-dna-structures-perplex-scientists/</link>
  161. <guid isPermaLink="false">51996C7C-FB34-4E07-B67BB7AE0339C91A</guid>
  162. <pubDate>Tue, 20 Jul 2021 15:00:00 GMT</pubDate>
  163. <description>&lt;p&gt;Researchers say they have discovered unique and exciting DNA strands in the mud; others are not sure of their novelty&lt;/p&gt;</description>
  164. <media:content url="https://static.scientificamerican.com/sciam/cache/file/D0F043F8-2527-4CF3-B52D2D34C1172F0B_source.jpg" fileSize="1046766" type="image/jpeg" expression="full" width="790" height="496">
  165. <media:description type="html"><![CDATA[Borgs seem to be associated with single-celled microorganisms known as archaea, shown in this scanning-electron microscopy image of Sulfolobus sp. archaea.]]></media:description>
  166. <media:credit><![CDATA[Science Source]]></media:credit>
  167. </media:content><dc:creator>Amber Dance, Nature magazine</dc:creator><category>Biology</category><category>The Sciences</category></item>
  168. <item>
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  171. <guid isPermaLink="false">9B8DBDBA-B83E-469C-BE4F9FC056549C86</guid>
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  174. <media:content url="https://static.scientificamerican.com/sciam/cache/file/B3053783-52AE-4C66-A0AD21396E43A9FC_source.jpg" fileSize="739775" type="image/jpeg" expression="full" width="790" height="496">
  175. <media:credit><![CDATA[Martin Harvey <em>Getty Images</em>]]></media:credit>
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  177. <item>
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  179. <link>https://www.scientificamerican.com/article/jeff-bezos-and-blue-origin-are-finally-flying-to-space/</link>
  180. <guid isPermaLink="false">6B88F6F2-D0E3-4253-9D90C9CEF64D969B</guid>
  181. <pubDate>Mon, 19 Jul 2021 19:00:00 GMT</pubDate>
  182. <description>&lt;p&gt;After nearly twenty years pursuing a lifelong dream of spaceflight, the world&amp;rsquo;s wealthiest person is at last ready for lift off&lt;/p&gt;</description>
  183. <media:content url="https://static.scientificamerican.com/sciam/cache/file/7B7F7EB4-29B4-48FF-AE01F28DC0982C23_source.jpeg" fileSize="549697" type="image/jpeg" expression="full" width="790" height="496">
  184. <media:description type="html"><![CDATA[Blue Origin&rsquo;s New Shepard suborbital vehicle lifts off from its launchpad during a test flight on December 11, 2019.]]></media:description>
  185. <media:credit><![CDATA[Blue Origin]]></media:credit>
  186. </media:content><dc:creator>Mike Wall, SPACE.com</dc:creator><category>Space &amp; Physics</category><category>The Sciences</category></item>
  187. <item>
  188. <title>The Idea That Trees Talk to Cooperate Is Misleading</title>
  189. <link>https://www.scientificamerican.com/article/the-idea-that-trees-talk-to-cooperate-is-misleading/</link>
  190. <guid isPermaLink="false">E3EA7AFE-DA76-4C54-98CCA6AAB5C1BE01</guid>
  191. <pubDate>Mon, 19 Jul 2021 14:00:00 GMT</pubDate>
  192. <description>&lt;p&gt;It&amp;rsquo;s a romantic notion, but pretending they&amp;rsquo;re like humans could actually harm the cause of conservation&lt;/p&gt;</description>
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  194. <media:credit><![CDATA[Getty Images]]></media:credit>
  195. </media:content><dc:creator>Kathryn Flinn</dc:creator><category>Biology</category><category>The Sciences</category></item>
  196. <item>
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  199. <guid isPermaLink="false">711DB8B2-E2FD-4E17-9E938C4216CA46C0</guid>
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  202. <media:content url="https://static.scientificamerican.com/sciam/cache/file/EE9CD76A-C71F-45FA-9532AA3A45831B52_source.jpg" fileSize="76812" type="image/jpeg" expression="full" width="790" height="496">
  203. <media:credit><![CDATA[Joel Sartore National <em>Geographic Photo Ark</em>]]></media:credit>
  204. </media:content><dc:creator>Christina Olson</dc:creator><category>Meter</category><category>Culture</category><category>The Sciences</category></item>
  205. <item>
  206. <title>New Approach Could Boost the Search for Life in Otherworldly Oceans</title>
  207. <link>https://www.scientificamerican.com/article/new-approach-could-boost-the-search-for-life-in-otherworldly-oceans/</link>
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  209. <pubDate>Fri, 16 Jul 2021 10:45:00 GMT</pubDate>
  210. <description>&lt;p&gt;&amp;ldquo;Ecological biosignatures&amp;rdquo; hold promise for revealing alien organisms that may dwell within icy moons such as Jupiter&amp;rsquo;s Europa and Saturn&amp;rsquo;s Enceladus&lt;/p&gt;</description>
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  212. <media:description type="html"><![CDATA[An artist's depiction of an autonomous submersible diving into Europa's ocean through a hypothetical surface fissure.]]></media:description>
  213. <media:credit><![CDATA[Loren A. Roberts for the Planetary Society   (CC BY 3.0)]]></media:credit>
  214. </media:content><dc:creator>Natalie Elliot</dc:creator><category>Space &amp; Physics</category><category>The Sciences</category></item>
  215. <item>
  216. <title>Spiders on Tiny Treadmills Give Scientists the Side-Eye</title>
  217. <link>https://www.scientificamerican.com/article/spiders-on-tiny-treadmills-give-scientists-the-side-eye/</link>
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  219. <pubDate>Thu, 15 Jul 2021 18:00:00 GMT</pubDate>
  220. <description>&lt;p&gt;Jumping spiders see more in their periphery than previously known&lt;/p&gt;</description>
  221. <media:content url="https://static.scientificamerican.com/sciam/cache/file/F508BCC3-F59F-4441-92E548D51670A3F1_source.jpg" fileSize="3578102" type="image/jpeg" expression="full" width="790" height="496">
  222. <media:description type="html"><![CDATA[Jumping spiders are known for their unique behavior and sets of large, round eyes.]]></media:description>
  223. <media:credit><![CDATA[Alamy]]></media:credit>
  224. </media:content><dc:creator>Maddie Bender</dc:creator><category>Biology</category><category>The Sciences</category></item>
  225. <item>
  226. <title>New Space Radiation Limits Needed for NASA Astronauts, Report Says</title>
  227. <link>https://www.scientificamerican.com/article/new-space-radiation-limits-needed-for-nasa-astronauts-report-says/</link>
  228. <guid isPermaLink="false">42ACA4C8-BA71-47D6-865B3345788911FE</guid>
  229. <pubDate>Wed, 14 Jul 2021 15:30:00 GMT</pubDate>
  230. <description>&lt;p&gt;Although meant to minimize risks to human health, the proposed new limits would still be exceeded by any conceivable near-future crewed voyage to Mars&lt;/p&gt;</description>
  231. <media:content url="https://static.scientificamerican.com/sciam/cache/file/5A097F51-326A-4C43-A453904B98D55061_source.png" fileSize="8549692" type="image/png" expression="full" width="790" height="496">
  232. <media:description type="html"><![CDATA[Illustration of astronauts working on the Martian surface. New proposed limits on radiation exposure could complicate NASA&rsquo;s plans to send humans to Mars.]]></media:description>
  233. <media:credit><![CDATA[NASA]]></media:credit>
  234. </media:content><dc:creator>Ramin Skibba</dc:creator><category>Space &amp; Physics</category><category>The Sciences</category></item>
  235. <item>
  236. <title>What You Know about Trump&apos;s Assault on Science Was Just the Tip of the Iceberg</title>
  237. <link>https://www.scientificamerican.com/article/what-you-know-about-trumps-assault-on-science-was-just-the-tip-of-the-iceberg/</link>
  238. <guid isPermaLink="false">5446C8A4-C86F-41CE-B75BFA11648BC9D4</guid>
  239. <pubDate>Tue, 13 Jul 2021 16:00:00 GMT</pubDate>
  240. <description>&lt;p&gt;&lt;span style=&quot;background:white&quot;&gt;Help us reveal the rest&lt;/span&gt;&lt;/p&gt;</description>
  241. <media:content url="https://static.scientificamerican.com/sciam/cache/file/B73732BB-0D7E-43C4-9B448AA295FF3BF9_source.jpg" fileSize="2892473" type="image/jpeg" expression="full" width="790" height="496">
  242. <media:description type="html"><![CDATA[Richard Bright, former head of the Biomedical Advanced Research and Development Authority, testifies before Congress on May 14, 2020.]]></media:description>
  243. <media:credit><![CDATA[Getty Images]]></media:credit>
  244. </media:content><dc:creator>Dana Gold, Lauren Kurtz</dc:creator><category>Policy</category><category>The Sciences</category></item>
  245. <item>
  246. <title>The Case for Antiracism</title>
  247. <link>https://www.scientificamerican.com/article/the-case-for-antiracism/</link>
  248. <guid isPermaLink="false">77823E8E-E34B-4297-8D20CBCE9298F593</guid>
  249. <pubDate>Tue, 13 Jul 2021 13:30:00 GMT</pubDate>
  250. <description></description>
  251. <media:content url="https://static.scientificamerican.com/sciam/cache/file/9CCF1E62-3FCE-4E22-9BC5D54E1939E069_source.jpg" fileSize="1455968" type="image/jpeg" expression="full" width="790" height="496">
  252. <media:description type="html"><![CDATA[&quot;Resurrection City&quot; on the National Mall in 1968 was a live-in protest settlement.]]></media:description>
  253. <media:credit><![CDATA[Getty Images]]></media:credit>
  254. </media:content><dc:creator>Andrea Gawrylewski</dc:creator><category>From the Editor</category><category>Policy</category><category>The Sciences</category></item>
  255. </channel>
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