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	<title>K2-18 b &#8211; Terra Projects</title>
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	<title>K2-18 b &#8211; Terra Projects</title>
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		<title>La NASA a découvert une planète plus imposante que la Terre avec un gaz qui n&#8217;est produit que par la vie</title>
		<link>https://www.laterredufutur.com/accueil/la-nasa-a-decouvert-une-planete-plus-imposante-que-la-terre-avec-un-gaz-qui-nest-produit-que-par-la-vie/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=la-nasa-a-decouvert-une-planete-plus-imposante-que-la-terre-avec-un-gaz-qui-nest-produit-que-par-la-vie</link>
		
		<dc:creator><![CDATA[Admin]]></dc:creator>
		<pubDate>Fri, 10 Jan 2025 11:00:56 +0000</pubDate>
				<category><![CDATA[Espace]]></category>
		<category><![CDATA[atmosphère]]></category>
		<category><![CDATA[exoplanète]]></category>
		<category><![CDATA[K2-18 b]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[vie]]></category>
		<guid isPermaLink="false">https://www.laterredufutur.com/accueil/?p=26520</guid>

					<description><![CDATA[<img width="80" height="60" src="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?fit=80%2C60&amp;ssl=1" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" decoding="async" srcset="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?resize=80%2C60&amp;ssl=1 80w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?resize=174%2C131&amp;ssl=1 174w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?resize=300%2C225&amp;ssl=1 300w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?resize=70%2C53&amp;ssl=1 70w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?zoom=3&amp;resize=80%2C60&amp;ssl=1 240w" sizes="(max-width: 80px) 100vw, 80px" data-attachment-id="26523" data-permalink="https://www.laterredufutur.com/accueil/la-nasa-a-decouvert-une-planete-plus-imposante-que-la-terre-avec-un-gaz-qui-nest-produit-que-par-la-vie/exoplanete-15/" data-orig-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?fit=1024%2C1024&amp;ssl=1" data-orig-size="1024,1024" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}" data-image-title="exoplanete" data-image-description="" data-image-caption="" data-large-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2025/01/exoplanete.jpg?fit=800%2C800&amp;ssl=1" />La NASA a découvert une planète plus grande que la Terre, accompagnée d&#8217;un gaz « uniquement produit par la vie...]]></description>
		
		
		
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		<title>Y a-t-il de la vie sur la superterre K2-18 b ? De l&#8217;eau découverte dans son atmosphère !</title>
		<link>https://www.laterredufutur.com/accueil/y-a-t-il-de-la-vie-sur-la-superterre-k2-18-b-de-leau-decouverte-dans-son-atmosphere/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=y-a-t-il-de-la-vie-sur-la-superterre-k2-18-b-de-leau-decouverte-dans-son-atmosphere</link>
		
		<dc:creator><![CDATA[Admin]]></dc:creator>
		<pubDate>Fri, 10 Nov 2023 11:00:15 +0000</pubDate>
				<category><![CDATA[Espace]]></category>
		<category><![CDATA[eau]]></category>
		<category><![CDATA[exoplanète]]></category>
		<category><![CDATA[habitable]]></category>
		<category><![CDATA[K2-18 b]]></category>
		<guid isPermaLink="false">https://www.laterredufutur.com/accueil/?p=25354</guid>

					<description><![CDATA[<img width="80" height="60" src="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?fit=80%2C60&amp;ssl=1" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" decoding="async" srcset="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?resize=80%2C60&amp;ssl=1 80w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?resize=174%2C131&amp;ssl=1 174w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?resize=300%2C225&amp;ssl=1 300w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?resize=70%2C53&amp;ssl=1 70w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?zoom=3&amp;resize=80%2C60&amp;ssl=1 240w" sizes="(max-width: 80px) 100vw, 80px" data-attachment-id="25355" data-permalink="https://www.laterredufutur.com/accueil/y-a-t-il-de-la-vie-sur-la-superterre-k2-18-b-de-leau-decouverte-dans-son-atmosphere/k2-18-b-exoplanete/" data-orig-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?fit=1340%2C520&amp;ssl=1" data-orig-size="1340,520" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}" data-image-title="K2-18 b exoplanete" data-image-description="" data-image-caption="&lt;p&gt;credit https://webbtelescope.org/&lt;/p&gt;
" data-large-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/11/K2-18-b-exoplanete.jpg?fit=800%2C310&amp;ssl=1" />De la vapeur d&#8217;eau a été découverte dans l&#8217;atmosphère d&#8217;une exoplanète super-Terre, K2-18 b, qui orbite dans la zone habitable...]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">25354</post-id>	</item>
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		<title>Le télescope James Webb découvre du méthane et du dioxyde de carbone dans l&#8217;atmosphère de K2-18 b</title>
		<link>https://www.laterredufutur.com/accueil/le-telescope-james-webb-decouvre-du-methane-et-du-dioxyde-de-carbone-dans-latmosphere-de-k2-18-b/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=le-telescope-james-webb-decouvre-du-methane-et-du-dioxyde-de-carbone-dans-latmosphere-de-k2-18-b</link>
		
		<dc:creator><![CDATA[Admin]]></dc:creator>
		<pubDate>Wed, 27 Sep 2023 10:00:31 +0000</pubDate>
				<category><![CDATA[Espace]]></category>
		<category><![CDATA[exoplanète]]></category>
		<category><![CDATA[habitable]]></category>
		<category><![CDATA[K2-18 b]]></category>
		<category><![CDATA[potentiel]]></category>
		<category><![CDATA[vie]]></category>
		<guid isPermaLink="false">https://www.laterredufutur.com/accueil/?p=25249</guid>

					<description><![CDATA[<img width="80" height="60" src="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?fit=80%2C60&amp;ssl=1" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" decoding="async" srcset="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?resize=80%2C60&amp;ssl=1 80w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?resize=174%2C131&amp;ssl=1 174w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?resize=300%2C225&amp;ssl=1 300w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?resize=70%2C53&amp;ssl=1 70w, https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?zoom=3&amp;resize=80%2C60&amp;ssl=1 240w" sizes="(max-width: 80px) 100vw, 80px" data-attachment-id="25250" data-permalink="https://www.laterredufutur.com/accueil/le-telescope-james-webb-decouvre-du-methane-et-du-dioxyde-de-carbone-dans-latmosphere-de-k2-18-b/exoplanete-k2-18b/" data-orig-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?fit=985%2C554&amp;ssl=1" data-orig-size="985,554" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}" data-image-title="exoplanete K2-18b" data-image-description="" data-image-caption="&lt;p&gt;Cette vue d&amp;rsquo;artiste montre à quoi pourrait ressembler l&amp;rsquo;exoplanète K2-18 b d&amp;rsquo;après les données scientifiques. K2-18 b, une exoplanète 8,6 fois plus massive que la Terre, est en orbite autour de l&amp;rsquo;étoile naine froide K2-18, dans la zone habitable, à 120 années-lumière de la Terre. Une nouvelle étude du télescope spatial James Webb de la NASA sur K2-18 b a révélé la présence de molécules carbonées, dont le méthane et le dioxyde de carbone. L&amp;rsquo;abondance du méthane et du dioxyde de carbone, ainsi que l&amp;rsquo;absence d&amp;rsquo;ammoniac, confirment l&amp;rsquo;hypothèse de l&amp;rsquo;existence d&amp;rsquo;un océan d&amp;rsquo;eau sous une atmosphère riche en hydrogène dans K2-18 b.&lt;br /&gt;
Crédits : Illustration : NASA, CSA, ESA, J. Olmsted (STScI), Science : N. Madhusudhan (Université de Cambridge)&lt;/p&gt;
" data-large-file="https://i0.wp.com/www.laterredufutur.com/accueil/wp-content/uploads/2023/09/exoplanete-K2-18b.jpg?fit=800%2C450&amp;ssl=1" />Une nouvelle observation de K2-18 b, une exoplanète 8,6 fois plus massive que la Terre, par le télescope spatial James...]]></description>
		
		
		
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