Mission réussie : Space X a lancé 60 mini-satellites Starlink

26 Mai, 2019, 19:06 | Auteur: Therese Cote
  • Décollage d'une fusée Falcon 9 de SpaceX

La semaine dernière, SpaceX annonçait être prêt à lancer ses 60 premiers satellites pour la mission Starlink.

"Confirmation du déploiement réussi des 60 satellites "Starlink", a écrit la société sur son compte Twitter.

SpaceX, la société d'Elon Musk, a lancé dans la nuit de jeudi à vendredi un premier lot de 60 mini-satellites en orbite terrestre basse pour la future constellation Starlink du milliardaire, destinée à proposer un accès internet payant à haut débit depuis l'espace. Chaque satellite pèse environ 227 kg, soit la charge la plus lourde jamais transportée par SpaceX.

C'est maintenant au tour des satellites de prendre la relève: en se séparant naturellement, ils sont censés se propulser à une altitude de 550 kilomètres, afin de se mettre en orbite. De plus, pour répondre aux craintes d'une explosion (au vu du nombre de satellites et des débris spatiaux déjà présents), SpaceX a promis que ces derniers se désintégreront à 95% à la fin de leur durée de vie.

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Le lancement avait été reporté à deux reprises en raison du vent et d'un problème informatique.

SpaceX, leader du marché des lancements, veut saisir une part du futur marché de l'internet de l'espace, que convoitent de nombreuses rivales, comme la start-up OneWeb, ou le géant Amazon, qui est bien moins avancé (projet Kuiper).

Avec ces gains, Musk espère pouvoir financer la construction de navettes spatiales dans le but avoué d'un jour coloniser la planète Mars. Cela reste très bas, comparé aux autres satellites en orbite terrestre, notamment ceux en orbite géostationnaire à 36.000 km.

Pour recevoir l'internet de SpaceX, une antenne plate de la taille d'une "boîte moyenne de pizza" sera nécessaire, selon lui. Elon Musk précise tout de même que ce réseau sera vraiment opérationnel lorsque 800 satellites seront en orbite. Il a indiqué que SpaceX souhaitait néanmoins signer des opérateurs télécom en tant que clients, ainsi que des gouvernements.

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