{"id":2662,"date":"2023-04-24T11:02:23","date_gmt":"2023-04-24T09:02:23","guid":{"rendered":"https:\/\/www.pilatre-de-rozier.com\/pbp\/?p=2662"},"modified":"2023-04-24T11:02:24","modified_gmt":"2023-04-24T09:02:24","slug":"%f0%9f%93%b0-lechec-qui-nen-est-pas-un","status":"publish","type":"post","link":"https:\/\/www.pilatre-de-rozier.com\/pbp\/2023\/04\/24\/%f0%9f%93%b0-lechec-qui-nen-est-pas-un\/","title":{"rendered":"\ud83d\udcf0 L\u2019\u00e9chec qui n\u2019en est pas un"},"content":{"rendered":"\n<p>\ud83c\uddeb\ud83c\uddf7 <strong>L\u2019\u00e9chec qui n\u2019en est pas un<\/strong><\/p>\n\n\n\n<p>La m\u00eame semaine, l&rsquo;Europe avec l\u2019ESA lance avec succ\u00e8s sa sonde en direction de Jupiter pour un long voyage de plusieurs ann\u00e9es avec Ariane V. La mission Juice doit permettre d\u2019\u00e9tudier les lunes autour de la plan\u00e8te Jupiter. Dix ans ont \u00e9t\u00e9 n\u00e9cessaires pour r\u00e9ussir cet exploit qui devrait permettre de savoir s\u2019il existe au moins une vie microbienne sur Ganym\u00e8de l\u2019une des trois lunes \u00e9tudi\u00e9es. Par contre pour Elon Musk, le starship de SpaceX, apr\u00e8s une premi\u00e8re partie r\u00e9ussie de d\u00e9collage, a explos\u00e9 en vol. Le plus grand lanceur jamais construit de 5,000 tonnes n\u2019a pas r\u00e9ussi la s\u00e9paration d\u2019avec le deuxi\u00e8me \u00e9tage le Starship. Cette mission, selon Musk, n\u2019est qu\u2019un demi \u00e9chec car le souhait \u00e9tait de r\u00e9ussir en premier le d\u00e9collage. Imm\u00e9diatement le constructeur de la fus\u00e9e qui devra dans quelques dizaines de mois conduire les astronautes autour de la Lune, puis se poser sur la Lune avec Art\u00e9mis 3, a d\u00e9clar\u00e9 que de nouveaux essais seraient pratiqu\u00e9s rapidement. Rappelons que la sp\u00e9cificit\u00e9 de ce lanceur est de pouvoir normalement se reposer sur terre apr\u00e8s le lancement, ce qui va diminuer fortement les co\u00fbts d\u2019exploitation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p>\ud83c\uddec\ud83c\udde7 <strong>The failure that is not a failure<\/strong><\/p>\n\n\n\n<p>The same week, Europe with the ESA successfully launched its probe towards Jupiter for a long journey of several years with Ariane V. The Juice mission is expected to study the moons around the planet Jupiter. Ten years were necessary to achieve this feat to make it possible to know if there is at least a microbial life on Ganymede, one of the three moons studied. On the other hand for Elon Musk, the SpaceX starship, after a successful first part of takeoff, exploded in flight. The largest launcher ever built of 5,000 tons failed to separate from the second stage Starship. This mission, according to Musk, is only a half failure because the wish was to succeed in the first liftoff. Immediately the manufacturer of the rocket which will have to lead in some tens of months astronauts around the Moon, then to land on the Moon with Artemis 3, declared that new tests would be practiced quickly. Let us recall that the specificity of this launcher is normally to be able to land back on earth after the launch, which will strongly decrease the operating costs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83c\uddeb\ud83c\uddf7 L\u2019\u00e9chec qui n\u2019en est pas un La m\u00eame semaine, l&rsquo;Europe avec l\u2019ESA lance avec succ\u00e8s sa sonde en direction de Jupiter pour un long voyage de plusieurs ann\u00e9es avec Ariane V. La mission Juice doit permettre d\u2019\u00e9tudier les lunes autour de la plan\u00e8te Jupiter. Dix ans ont \u00e9t\u00e9 n\u00e9cessaires pour r\u00e9ussir cet exploit qui [&hellip;]<\/p>\n","protected":false},"author":124,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2662","post","type-post","status-publish","format-standard","hentry","category-non-classifiee"],"_links":{"self":[{"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/posts\/2662","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/users\/124"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/comments?post=2662"}],"version-history":[{"count":1,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/posts\/2662\/revisions"}],"predecessor-version":[{"id":2663,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/posts\/2662\/revisions\/2663"}],"wp:attachment":[{"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/media?parent=2662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/categories?post=2662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pilatre-de-rozier.com\/pbp\/wp-json\/wp\/v2\/tags?post=2662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}