{"id":22804,"date":"2026-04-29T19:59:59","date_gmt":"2026-04-29T17:59:59","guid":{"rendered":"https:\/\/reperes-astro.fr\/?p=22804"},"modified":"2026-04-29T20:00:00","modified_gmt":"2026-04-29T18:00:00","slug":"lesa-recherche-plusieurs-analystes-en-lentilles-gravitationnelles","status":"publish","type":"post","link":"https:\/\/reperes-astro.fr\/lesa-recherche-plusieurs-analystes-en-lentilles-gravitationnelles\/","title":{"rendered":"L\u2019ESA recherche plusieurs analystes en lentilles gravitationnelles"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid.png\"><img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"100\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid.png\" alt=\"\" class=\"wp-image-22805\"\/><\/a><\/figure>\n<\/div>\n\n\n<p><strong>L\u2019ESA (l\u2019Agence Spatiale Europ\u00e9enne) recherche plusieurs \u201canalystes en lentilles gravitationnelles\u201d (b\u00e9n\u00e9voles) sans exp\u00e9rience. Nombre de postes \u00e0 pourvoir : le plus possible.<\/strong><\/p>\n\n\n\n<p><strong>Votre mission ? Participer \u00e0 l\u2019analyse collective de pr\u00e8s de 200 000 clich\u00e9s pris par le satellite EUCLID. Sur les 72 millions de galaxies d\u00e9tect\u00e9es pr\u00e9sentant un potentiel effet de lentille gravitationnelle une premi\u00e8re s\u00e9lection de 300 000 candidates a \u00e9t\u00e9 effectu\u00e9e par algorithmes et r\u00e9seaux d\u2019IA. Mais pour les clich\u00e9s les plus sensibles, rien de vaut le duo oeil\/cerveau humain !<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong><span style=\"text-decoration: underline;\">Comment participer \u00e0 la classification des potentielles lentilles gravitationnelles<\/span> ?<\/strong><\/h2>\n\n\n\n<p>Rendez-vous sur le site <a href=\"http:\/\/zooniverse.org\"><u><strong>zooniverse.org<\/strong><\/u><\/a>, direction le projet <a href=\"https:\/\/www.zooniverse.org\/projects\/aprajita\/space-warps-esa-euclid\"><u><strong>Space Warps<\/strong><\/u><\/a>. Suivez le tutoriel qui va vous expliquer votre mission : observer 4 images d\u2019un m\u00eame sujet et d\u00e9tecter une potentielle lentille gravitationnelle.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"477\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-1.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22806\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-1.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-1-300x143.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-1-768x366.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Si vous d\u00e9tectez un effet de lentille vous pouvez positionner votre souris pour marquer l\u2019emplacement, cliquez ensuite sur <strong>\u201cDONE\u201d<\/strong>. Vous avez aussi la possibilit\u00e9 d\u2019int\u00e9grer un canal de discussion avec une \u00e9quipe de chercheurs via le bouton <strong>\u201cDONE &amp; TALK\u201d<\/strong>. Bravo, une image de faite il en reste 191 853 !<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"188\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-2.jpg\" alt=\"\" class=\"wp-image-22807\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-2.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-2-300x56.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-2-768x144.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Oh et de temps en temps des effets de lentilles d\u00e9j\u00e0 valid\u00e9es viendront s\u2019incruster dans vos analyses, histoire de vous dire si vous \u00eates sur la bonne voie et si vous avez le bon coup d&rsquo;\u0153il.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-3.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"481\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-3.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22808\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-3.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-3-300x144.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-3-768x369.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>En cas de doute un pense-b\u00eate est disponible en cliquant sur le bouton <strong>\u201cFIELD GUIDE\u201d :<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"473\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22809\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4-300x142.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4-768x363.jpg 768w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4-520x245.jpg 520w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-4-720x340.jpg 720w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Pas de r\u00e9mun\u00e9ration en vue mais si 100 de vos classifications sont confirm\u00e9es et valid\u00e9es par un comit\u00e9 d\u2019experts (les vrais pros\u2026) votre nom sera ajout\u00e9 \u00e0 la liste des contributeurs dans l\u2019annexe de l\u2019\u00e9tude lors de la publication de l\u2019article scientifique de d\u00e9couverte final, celui qui pr\u00e9sentera la liste compl\u00e8te des lentilles candidates issues du projet !<\/p>\n\n\n\n<p><strong>Pour aller plus loin<\/strong>,<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong><span style=\"text-decoration: underline;\">Avant de vous lancer dans l\u2019aventure petit rappel sur les lentilles gravitationnelles <\/span><\/strong><em><span style=\"text-decoration: underline;\"><strong>(source : space warp esa)<\/strong><\/span><\/em><strong> :<\/strong><\/h2>\n\n\n\n<p>La th\u00e9orie de la gravit\u00e9 d\u2019Einstein, la Relativit\u00e9 g\u00e9n\u00e9rale, a fait une pr\u00e9diction remarquable. Les objets massifs, comme les \u00e9toiles, courbent l\u2019espace autour d\u2019eux de sorte que les rayons lumineux passants suivent des trajectoires courbes. Les preuves de cette th\u00e9orie r\u00e9volutionnaire ont \u00e9t\u00e9 obtenues pour la premi\u00e8re fois par Arthur Eddington en 1919, lorsque, lors d\u2019une \u00e9clipse solaire, il a observ\u00e9 que des \u00e9toiles proches du bord du Soleil semblaient l\u00e9g\u00e8rement d\u00e9cal\u00e9es.<\/p>\n\n\n\n<p>En 1937, Fritz Zwicky a compris que des galaxies massives (qui peuvent contenir entre dix millions et cent mille milliards d\u2019\u00e9toiles) ou des amas de galaxies pouvaient \u00eatre utilis\u00e9s pour agrandir des galaxies lointaines que les t\u00e9lescopes conventionnels ne pouvaient pas d\u00e9tecter. A l\u2019instar d\u2019une loupe conventionnelle, ces lentilles gravitationnelles agrandissent et focalisent la lumi\u00e8re des galaxies de fond lointaines, mais peuvent aussi en d\u00e9former l\u2019image.<\/p>\n\n\n\n<p>Lorsque l\u2019une de ces lentilles gravitationnelles se trouve juste devant une galaxie de fond, le facteur de grossissement peut atteindre x10 ou m\u00eame plus, nous offrant une vue zoom\u00e9e de l\u2019univers lointain. Les lentilles peuvent nous aider \u00e0 \u00e9tudier de jeunes galaxies et leur processus de formation.<\/p>\n\n\n\n<p>Les observations de la galaxie de fond d\u00e9form\u00e9e peuvent \u00e9galement nous fournir des informations utiles sur l\u2019objet qui agit comme une lentille gravitationnelle. La s\u00e9paration et la distorsion des images peuvent indiquer aux astronomes quelle masse il y a dans l\u2019objet, et comment il est dispos\u00e9. C\u2019est l\u2019un des rares moyens dont nous disposons pour cartographier o\u00f9 se trouve la mati\u00e8re noire dans l\u2019univers, \u00e0 quel point elle est grumeleuse et dense pr\u00e8s des centres des galaxies. Des informations cruciales pour comprendre l\u2019\u00e9volution des galaxies !<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-5.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"202\" height=\"202\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-5.gif\" alt=\"\" class=\"wp-image-22810\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-6.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"202\" height=\"202\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-6.gif\" alt=\"\" class=\"wp-image-22811\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-7.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"202\" height=\"202\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-7.gif\" alt=\"\" class=\"wp-image-22812\"\/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><em>Cr\u00e9dits vid\u00e9o : Alessandro Sonnenfeld<\/em><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-8.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"717\" height=\"509\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-8.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22813\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-8.jpg 717w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-8-300x213.jpg 300w\" sizes=\"auto, (max-width: 717px) 100vw, 717px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong><span style=\"text-decoration: underline;\">Le satellite EUCLID <\/span><\/strong><em><span style=\"text-decoration: underline;\"><strong>(sources : wikip\u00e9dia, ESA EUCLID)<\/strong><\/span><\/em><strong> :<\/strong><\/h2>\n\n\n\n<p>Le <a href=\"https:\/\/cnes.fr\/projets\/euclid\"><u><strong>projet EUCLID<\/strong><\/u><\/a> poursuit le travail effectu\u00e9 par la mission Planck (cartographie la structure de l&rsquo;univers primordial) en s\u2019attaquant \u00e0 l\u2019\u00e9volution des structures de l\u2019univers via l\u2019observation de milliards de galaxies. Ces observations permettront de mieux comprendre comment l\u2019expansion de l\u2019univers a eu lieu et comment il s\u2019est structur\u00e9 \u00e0 travers le temps et l\u2019espace, nous permettant de mieux comprendre le r\u00f4le et la nature de la mati\u00e8re noir et l\u2019\u00e9nergie noire.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-9.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"999\" height=\"651\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-9.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22814\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-9.jpg 999w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-9-300x195.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-9-768x500.jpg 768w\" sizes=\"auto, (max-width: 999px) 100vw, 999px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Le t\u00e9lescope spatial <strong>EUCLID<\/strong> est compos\u00e9 d\u2019un miroir de <strong>1.2m de diam\u00e8tre<\/strong>, d\u2019une cam\u00e9ra de <strong>600 m\u00e9gapixels<\/strong> pour <strong>l\u2019imagerie en domaine visible<\/strong> <strong>(VIS), <\/strong>ce qui lui permet de photographier une zone de l\u2019espace \u00e9quivalente \u00e0 trois pleines lunes,<strong> et d\u2019un spectrographe imageur proche infrarouges (NISP)<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-10.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"668\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-10.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22815\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-10.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-10-300x200.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-10-768x513.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:55%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-11.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-11.jpg\" alt=\"\" class=\"wp-image-22816\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-11.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-11-300x219.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-11-768x560.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:45%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-12.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"877\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-12.jpg\" alt=\"\" class=\"wp-image-22817\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-12.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-12-300x263.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-12-768x674.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>La mission <strong>EUCLID<\/strong> a \u00e9t\u00e9 lanc\u00e9e le 1er juillet 2023. Son orbite se situe au niveau du second point de Lagrange, nomm\u00e9 L2, situ\u00e9 \u00e0 1,5 millions de km de la Terre.<\/p>\n\n\n\n<p><strong>EUCLID<\/strong> n\u2019est pas le seul t\u00e9lescope situ\u00e9 sur ce point. Il a rejoint les t\u00e9lescopes spatiaux <a href=\"https:\/\/cnes.fr\/projets\/gaia\"><u><strong>GAIA<\/strong><\/u><\/a> et <a href=\"https:\/\/www.jwst.fr\/\"><u><strong>JWST<\/strong><\/u><\/a>. Ce point a \u00e9t\u00e9 s\u00e9lectionn\u00e9 car il offre des conditions d\u2019op\u00e9ration optimum : un environnement radiatif b\u00e9nin, qui est requis pour les d\u00e9tecteurs sensibles et des conditions d\u2019observations tr\u00e8s stables, qui sont suffisamment loin du syst\u00e8me perturbateur Terre-Lune.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-13.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"834\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-13.jpg\" alt=\"L\u2019ESA recherche plusieurs analystes\" class=\"wp-image-22818\" srcset=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-13.jpg 1000w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-13-300x250.jpg 300w, https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/uploads\/2026\/04\/esa-euclid-13-768x641.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n<div class=\"pvc_clear\"><\/div><p id=\"pvc_stats_22804\" class=\"pvc_stats all  \" data-element-id=\"22804\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p><div class=\"pvc_clear\"><\/div>","protected":false},"excerpt":{"rendered":"<p>L\u2019ESA (l\u2019Agence Spatiale Europ\u00e9enne) recherche plusieurs \u201canalystes en lentilles gravitationnelles\u201d (b\u00e9n\u00e9voles) sans exp\u00e9rience. Nombre de postes \u00e0 pourvoir : le plus&#46;&#46;&#46;<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_22804\" class=\"pvc_stats all  \" data-element-id=\"22804\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/reperes-astro.fr\/%77%70%2d%63%6f%6e%74%65%6e%74\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":6,"featured_media":22815,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61,63,49],"tags":[],"class_list":["post-22804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cosmologie","category-espace","category-informations-a-destination-des-enseignants-et-des-animateurs"],"a3_pvc":{"activated":true,"total_views":25,"today_views":25},"yoast_head":"<title>L\u2019ESA recherche plusieurs analystes en lentilles gravitationnelles - Rep\u00e8res Astro<\/title>\n<meta name=\"description\" content=\"L\u2019ESA recherche plusieurs \u201canalystes en lentilles gravitationnelles\u201d sans exp\u00e9rience. 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