{"id":1959,"date":"2026-08-07T11:25:30","date_gmt":"2026-08-07T09:25:30","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?page_id=1959"},"modified":"2026-09-11T13:30:39","modified_gmt":"2026-09-11T11:30:39","slug":"capsules-scientifiques","status":"publish","type":"page","link":"https:\/\/www.ias.u-psud.fr\/index.php\/capsules-scientifiques\/","title":{"rendered":"Capsules scientifiques"},"content":{"rendered":"\t\t
\n\t\t\t\t
\n\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

R\u00e9sultats scientifiques<\/p>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tL\u2019analyse des \u00e9chantillons de Ryugu et de Bennu livre des informations pr\u00e9cieuses sur la chimie de l\u2019azote dans le syst\u00e8me solaire primitif\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Une \u00e9quipe de scientifiques de l\u2019IAS a identifi\u00e9 une phase de phyllosilicates riches en ammonium (NH4+) dans les \u00e9chantillons collect\u00e9s \u00e0 la surface des 2 ast\u00e9ro\u00efdes Ryugu et Bennu. C\u2019est une premi\u00e8re pour ce type de mat\u00e9riau extraterrestre. Cette d\u00e9couverte, publi\u00e9e dans Nature Communications, d\u00e9montre que l\u2019ammonium est un maillon important de la chimie de l\u2019azote pour tous les petits corps dits \u00ab primitifs \u00bb, qu\u2019ils soient des ast\u00e9ro\u00efdes carbon\u00e9s ou des com\u00e8tes.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tMAJIS d\u00e9tecte l\u2019activit\u00e9 de l\u2019objet interstellaire 3I\/ATLAS\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

En novembre 2025, la mission Juice de l\u2019ESA a observ\u00e9 la com\u00e8te interstellaire 3I\/ATLAS, un visiteur rare venu d\u2019un autre syst\u00e8me stellaire.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tOrigine de l’eau du syst\u00e8me solaire interne : la composition isotopique initiale de l’hydrog\u00e8ne enfin d\u00e9voil\u00e9e !\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Les interactions eau-roche sont essentielles dans la formation des plan\u00e8tes et notamment celle de la Terre. <\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tRetour vers le futur des amas de galaxies\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Pour la premi\u00e8re fois, les amas de galaxies lointains d\u00e9couverts par le satellite Planck s’expliquent par les simulations qui pr\u00e9disent \u00e9galement leur \u00e9volution future.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tUne nouvelle carte de l’alt\u00e9ration aqueuse sur Mars\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Des travaux r\u00e9alis\u00e9s dans l’\u00e9quipe Syst\u00e8me Solaire ont permis de fournir la premi\u00e8re carte globale et \u00e0 haute r\u00e9solution des min\u00e9raux dits \u00ab\u00a0hydrat\u00e9s\u00a0\u00bb de la surface de Mars.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tDes nano-diamants cach\u00e9s dans le milieu interstellaire\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Les nano-diamants sont une des composantes les plus \u00e9nigmatiques de la poussi\u00e8re cosmique.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tNouvelle d\u00e9couverte d\u2019un proto-amas de galaxies tr\u00e8s actif, datant de quand l\u2019Univers avait 3 milliards d\u2019ann\u00e9es\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Un \u00ab\u00a0proto-amas\u00a0\u00bb de galaxies datant de l’\u00e9poque la plus active de l’Univers a \u00e9t\u00e9 d\u00e9couvert.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t

\n\t\t\t
\n\t\t\t\t
\"\"<\/div><\/a>\n\t\t\t\t
\n\t\t\t\t

\n\t\t\t\n\t\t\t\tAurait-on d\u00e9couvert la mati\u00e8re cach\u00e9e de l\u2019Univers ?\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t
\n\t\t\t

Les astrophysiciens estiment que pr\u00e8s de 40 % de la mati\u00e8re ordinaire qui constitue les \u00e9toiles, plan\u00e8tes et galaxies, demeure inobserv\u00e9e, cach\u00e9e sous la forme d\u2019un gaz chaud dans les m\u00e9andres de la toile cosmique.<\/p>\n\t\t<\/div>\n\t\t\n\t\t\n\t\t\tLire la suite \u00bb\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t\n\t\t\t\t<\/path><\/svg>\t\t\t<\/span>\n\t\t\n\t\t\t\t

<\/div>\n\t\t\t\t
<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

R\u00e9sultats scientifiques<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"inline_featured_image":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-1959","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/1959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/comments?post=1959"}],"version-history":[{"count":22,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/1959\/revisions"}],"predecessor-version":[{"id":2715,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/1959\/revisions\/2715"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}