{"id":73103,"date":"2024-11-14T16:34:58","date_gmt":"2024-11-14T16:34:58","guid":{"rendered":"https:\/\/www.africa-press.net\/niger\/politique\/cest-le-nouvel-an-sur-mars"},"modified":"2024-11-14T16:36:49","modified_gmt":"2024-11-14T16:36:49","slug":"cest-le-nouvel-an-sur-mars","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars","title":{"rendered":"C’est le nouvel an sur Mars !"},"content":{"rendered":"

Africa-Press – Niger. <\/strong><\/span>Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce moment marque le de\u0301but de l’anne\u0301e 38 sur la plane\u0300te Rouge selon le calendrier martien adopte\u0301 par la communaute\u0301 scientifique.<\/p>\n

Pourquoi compter les anne\u0301es sur Mars ?<\/b><\/p>\n

Chaque nouvel an martien marque un repe\u0300re dans le suivi scientifique des saisons sur la plane\u0300te Rouge. Ce calendrier, utilise\u0301 par la NASA et l’ESA, de\u0301bute le 11 avril 1955, date choisie comme le de\u0301but de l’anne\u0301e martienne 1 et qui correspondait au de\u0301but du printemps dans l’he\u0301misphe\u0300re Nord.<\/p>\n

Cette date a e\u0301te\u0301 choisie de manie\u0300re arbitraire. Toutefois, le choix de cette re\u0301fe\u0301rence a e\u0301te\u0301 consolide\u0301 par une puissante tempe\u0302te de poussie\u0300re qui s’est produite en 1956, appele\u0301e \u00ab\u00a0The great storm of 1956\u00a0\u00bb. C’est l’un des premiers phe\u0301nome\u0300nes atmosphe\u0301riques globaux observe\u0301s depuis la Terre.<\/p>\n

Cet e\u0301ve\u0301nement marquant permit aux astronomes de mieux comprendre l’impact du climat martien et sa dynamique atmosphe\u0301rique. Depuis, les tempe\u0302tes de cette ampleur, appele\u0301es tempe\u0302tes globales, ne se produisent que tous les six a\u0300 huit ans martiens. La dernie\u0300re fois que cela s’est produit, c’e\u0301tait en mai 2018 et la tempe\u0302te avait dure\u0301 plusieurs semaines. Elle a d’ailleurs e\u0301te\u0301 fatale au rover Opportunity qui avait pourtant re\u0301siste\u0301 pre\u0300s de 15 ans aux conditions martiennes.<\/p>\n


\nSur Mars, des anne\u0301es plus longues que sur Terre<\/b><\/p>\n

Depuis la mission Viking, dans les anne\u0301es 1970, jusqu’aux re\u0301centes explorations mene\u0301es par les rovers de la Nasa et de l’ESA, le calendrier martien structure l’ensemble des ope\u0301rations et des observations re\u0301alise\u0301es sur la plane\u0300te Rouge.<\/p>\n

La dynamique saisonnie\u0300re de Mars, par exemple, influence l’activite\u0301 atmosphe\u0301rique et l’accumulation de poussie\u0300re, deux parame\u0300tres cruciaux pour le bon fonctionnement des rovers et pour le de\u0301veloppement de futures missions habite\u0301es.<\/p>\n

Ces observations re\u0301gulie\u0300res et planifie\u0301es sont e\u0301galement essentielles pour comprendre les cycles de me\u0301thane, un gaz dont la pre\u0301sence intermittente intrigue les chercheurs et soule\u0300ve la possibilite\u0301 d’une activite\u0301 ge\u0301ologique ou me\u0302me, peut-e\u0302tre, biologique.<\/p>\n

Sur Mars, une anne\u0301e dure environ 687 jours terrestres, soit presque deux fois plus longtemps qu’une anne\u0301e sur Terre. Le cycle est divise\u0301 en quatre saisons: printemps, e\u0301te\u0301, automne et hiver, similaires a\u0300 celles de la Terre, mais ine\u0301gales en dure\u0301e, notamment en raison de l’orbite elliptique de Mars. Par exemple, le printemps dans l’he\u0301misphe\u0300re nord est la saison la plus longue, avec 194 sols (jours martiens), tandis que l’automne ne dure que 142 sols.<\/p>\n

Pour plus d’informations et d’analyses sur la Niger, suivez Africa-Press<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Niger. Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce moment marque le de\u0301but de l’anne\u0301e 38 sur la plane\u0300te Rouge selon le calendrier martien adopte\u0301 par la communaute\u0301 scientifique. Pourquoi compter les anne\u0301es sur Mars ? Chaque nouvel an […]<\/p>\n","protected":false},"author":82,"featured_media":73102,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[29],"class_list":["post-73103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-niger"],"yoast_head":"\nC'est le nouvel an sur Mars ! - niger<\/title>\n<meta name=\"description\" content=\"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C'est le nouvel an sur Mars !\" \/>\n<meta property=\"og:description\" content=\"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\" \/>\n<meta property=\"og:site_name\" content=\"niger\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-14T16:34:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-14T16:36:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"899\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"C’est le nouvel an sur Mars !\",\"datePublished\":\"2024-11-14T16:34:58+00:00\",\"dateModified\":\"2024-11-14T16:36:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\"},\"wordCount\":501,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg\",\"keywords\":[\"Niger\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\",\"url\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\",\"name\":\"C'est le nouvel an sur Mars ! - niger\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg\",\"datePublished\":\"2024-11-14T16:34:58+00:00\",\"dateModified\":\"2024-11-14T16:36:49+00:00\",\"author\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"description\":\"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...\",\"breadcrumb\":{\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage\",\"url\":\"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg\",\"contentUrl\":\"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg\",\"width\":1200,\"height\":899,\"caption\":\"C'est le nouvel an sur Mars !\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/www.africa-press.net\/niger\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"C’est le nouvel an sur Mars !\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/#website\",\"url\":\"https:\/\/www.africa-press.net\/niger\/\",\"name\":\"niger\",\"description\":\"Just another Africa News Agency Sites site\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.africa-press.net\/niger\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\",\"name\":\"cfeditorfr\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"C'est le nouvel an sur Mars ! - niger","description":"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars","og_locale":"fr_FR","og_type":"article","og_title":"C'est le nouvel an sur Mars !","og_description":"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...","og_url":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars","og_site_name":"niger","article_published_time":"2024-11-14T16:34:58+00:00","article_modified_time":"2024-11-14T16:36:49+00:00","og_image":[{"width":1200,"height":899,"url":"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg","type":"image\/jpeg"}],"author":"cfeditorfr","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"cfeditorfr","Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#article","isPartOf":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars"},"author":{"name":"cfeditorfr","@id":"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1"},"headline":"C’est le nouvel an sur Mars !","datePublished":"2024-11-14T16:34:58+00:00","dateModified":"2024-11-14T16:36:49+00:00","mainEntityOfPage":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars"},"wordCount":501,"commentCount":0,"image":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage"},"thumbnailUrl":"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg","keywords":["Niger"],"articleSection":["Divers","Toutes les actualit\u00e9s"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars","url":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars","name":"C'est le nouvel an sur Mars ! - niger","isPartOf":{"@id":"https:\/\/www.africa-press.net\/niger\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage"},"image":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage"},"thumbnailUrl":"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg","datePublished":"2024-11-14T16:34:58+00:00","dateModified":"2024-11-14T16:36:49+00:00","author":{"@id":"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1"},"description":"Avec un rythme bien diffe\u0301rent du no\u0302tre, Mars vient de ce\u0301le\u0301brer son nouvel an, ce 12 novembre 2024 a\u0300 9H32 GMT. Ce mo ...","breadcrumb":{"@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#primaryimage","url":"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg","contentUrl":"https:\/\/static.africa-press.net\/niger\/sites\/40\/2024\/11\/sm_1731589567.317041.jpg","width":1200,"height":899,"caption":"C'est le nouvel an sur Mars !"},{"@type":"BreadcrumbList","@id":"https:\/\/www.africa-press.net\/niger\/toutes-les-actualites\/cest-le-nouvel-an-sur-mars#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.africa-press.net\/niger\/"},{"@type":"ListItem","position":2,"name":"C’est le nouvel an sur Mars !"}]},{"@type":"WebSite","@id":"https:\/\/www.africa-press.net\/niger\/#website","url":"https:\/\/www.africa-press.net\/niger\/","name":"niger","description":"Just another Africa News Agency Sites site","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.africa-press.net\/niger\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/www.africa-press.net\/niger\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1","name":"cfeditorfr"}]}},"_links":{"self":[{"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/posts\/73103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/users\/82"}],"replies":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/comments?post=73103"}],"version-history":[{"count":0,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/posts\/73103\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/media\/73102"}],"wp:attachment":[{"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/media?parent=73103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/categories?post=73103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.africa-press.net\/niger\/wp-json\/wp\/v2\/tags?post=73103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}