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class="user-not-authenticated"> <h1> <a href="//home.cern" title="CERN"> CERN <span>Acc茅l茅rateur de science</span> </a> </h1> <ul> <li class="signin"> <div class="item-list item-list-length-1"> <ul class="cern-signedin toolbar-submenu"><li class="cern-account-links"><a href="https://home.cern/fr/user/login?destination=fr/science" class="cern-account cern-signin cern-single-mobile-signin">Connexion</a></li></ul> </div> </li> <li><a href="//cern.ch/directory" class="cern-directory" title="Recherche et liens utiles">Liens utiles</a></li> </ul> </div> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas> <header role="banner"> <div class="header-wrapper"> <div class="site-info col-xs-12 col-sm-2 col-md-3 col-lg-4"> <div class="site-info__logo col-lg-3 col-md-3 col-sm-3"> <a href="/fr" title="Accueil" rel="home"> <img src="/sites/default/files/logo/cern-logo.png" alt="home"/> </a> </div> <div class="site-info__text col-lg-9 col-md-9 col-sm-0 col-xs-9"> </div> </div> <div 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--> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="cern-dropdown"> <a class="dropdown-toggle"> Le CERN </a> <div class="cern-dropdown-menu row"> <div class="col-xs-12 col-sm-12 col-md-4 col-lg-4 col-item-megamenu"> <div class="block-custom-wrapper block-content block-content--type-basic block-content--view-mode-default ds-1col clearfix"> <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><h2>CERN</h2> <p>Au CERN, nous sondons la structure fondamentale de la mati猫re qui compose tout ce qui nous entoure. Pour ce faire, nous utilisons les instruments scientifiques les plus grands et les plus complexes du monde.</p> <p class="cern-btn"><a href="/fr/about">En savoir plus</a></p> </div> </div> </div> <div class="col-xs-0 col-sm-0 col-md-8 col-lg-8 col-item-megamenu"> <div class="row"> <div class="col-xs-12 col-sm-12 col-md-4 col-lg-4 col-item-megamenu"> <ul class="cern-submenu"> <li> <p class="h2 cernmenu-level-0"> <a href="/fr/about/who-we-are" data-drupal-link-system-path="node/5898">Qui sommes-nous ?</a> </p> <ul class=""> <li> <p class=" cernmenu-level-1 cernmenu-level-last "> <a href="/fr/about/who-we-are/our-mission" data-drupal-link-system-path="node/5273">Nos missions</a> </p> </li> <li> <p class=" cernmenu-level-1 cernmenu-level-last "> <a href="/fr/about/who-we-are/our-governance" data-drupal-link-system-path="node/5277">Notre gouvernance</a> </p> </li> <li> <p class=" cernmenu-level-1 cernmenu-level-last "> <a href="/fr/about/who-we-are/our-governance/member-states" 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class="view-header"> <p>Actualit茅s, opinions, annonces et articles 脿 la une</p> </div> <div class="view-content clearfix"> <div class="views-row"> <div data-history-node-id="191722" id="preview-card" class="component-preview-cards box-pattern news_page" style="background:url('/sites/default/files/styles/large/public/2025-01/Amanda%20Metzger_2%20%281%29.jpg?itok=ck8Q17Fu') no-repeat center center / cover" data-background="/sites/default/files/styles/large/public/2025-01/Amanda%20Metzger_2%20%281%29.jpg?itok=ck8Q17Fu" class="component-preview-cards box-pattern news_page"> <a class="box-link" target="" href="/fr/news/news/cern/swiss-artist-amanda-e-metzger-selected-connect-residency"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3 class="standard-title"> <a href="/fr/news/news/cern/swiss-artist-amanda-e-metzger-selected-connect-residency" hreflang="fr" title="Une artiste suisse s茅lectionn茅e pour le programme de r茅sidence artistique Connect"> <span> Une artiste suisse s茅lectionn茅e pour le progr... </span> </a> </h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> At CERN </div> <div class="preview-card__category" style="color:"> News </div> <div class="preview-card__date" style="color:"> <time datetime="2025-01-30T13:00:00Z">30 janvier, 2025</time> </div> </div> </div> </div> </div> </div> <div class="views-row"> <div data-history-node-id="191421" id="preview-card--2" class="component-preview-cards box-pattern news_page" style="background:url('/sites/default/files/styles/large/public/2024-12/202204-064_375.jpg?itok=nP87BzBh') no-repeat center center / cover" data-background="/sites/default/files/styles/large/public/2024-12/202204-064_375.jpg?itok=nP87BzBh" class="component-preview-cards box-pattern news_page"> <a class="box-link" target="" href="/fr/news/press-release/physics/cloud-experiment-resolves-puzzle-new-aerosol-particles-upper-troposphere"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3 class="standard-title"> <a href="/fr/news/press-release/physics/cloud-experiment-resolves-puzzle-new-aerosol-particles-upper-troposphere" hreflang="fr" title="L鈥檈xp茅rience CLOUD r茅sout l鈥櫭﹏igme de la formation de nouvelles particules d鈥檃茅rosol dans la troposph猫re sup茅rieure"> <span> L鈥檈xp茅rience CLOUD r茅sout l鈥櫭﹏igme de la form... </span> </a> </h3> </div> <div class="preview-card__body"></div> <div class="preview-cards__subtext"> <div class="preview-card__category" style="color:"> Physics </div> <div class="preview-card__category" style="color:"> Press release </div> <div class="preview-card__date" style="color:"> <time datetime="2024-12-04T16:00:10Z">4 d茅cembre, 2024</time> </div> </div> </div> </div> </div> </div> <div class="views-row"> <div data-history-node-id="191397" id="preview-card--3" class="component-preview-cards box-pattern news_page" style="background:url('/sites/default/files/styles/large/public/2024-11/Montclar.jpg?itok=1v3MFmuM') no-repeat center center / cover" data-background="/sites/default/files/styles/large/public/2024-11/Montclar.jpg?itok=1v3MFmuM" class="component-preview-cards box-pattern news_page"> <a class="box-link" target="" href="/fr/news/news/engineering/cern-signs-long-term-solar-power-agreements"></a> <div class="component-preview-cards__veil"></div> <div class="component-preview-cards__box_wrapper"> <div class="component-preview-cards__box"> <div class="preview-card__title"> <h3 class="standard-title"> <a href="/fr/news/news/engineering/cern-signs-long-term-solar-power-agreements" hreflang="fr" title="Le CERN signe des contrats 脿 long terme pour s鈥檃pprovisionner en 茅nergie solaire"> <span> Le CERN signe des contrats 脿 long terme pour 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