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Kuniye

Les traces dans le ciel nocturne laiss\u00e9es par BlueWalker 3 \/ Cr\u00e9dit : IAU<\/figcaption><\/figure>\n

Le probl\u00e8me est si grave que l\u2019Union astronomique internationale a cr\u00e9\u00e9 un Centre pour la protection du ciel sombre et tranquille contre les interf\u00e9rences des constellations de satellites. C\u2019est le lancement de BlueWalker 3, le plus gros et le plus lumineux des satellites commerciaux<\/strong> jamais mis en orbite, qui a pouss\u00e9 les scientifiques \u00e0 interpeller les autorit\u00e9s. Selon les mesures des astronomes, cet astronef qui d\u00e9ploie des antennes spatiales sur 64 m\u00e8tres carr\u00e9s est l\u2019objet c\u00e9leste le plus lumineux jamais observ\u00e9. Il laisse des tra\u00een\u00e9es dans le ciel qui cr\u00e9ent une forte pollution lumineuse<\/strong> et rendent impossible l\u2019observation pr\u00e9cise du ciel.<\/p>\n

\u00c0 lire \u2014 <\/strong>iPhone\u00a014\u00a0: les appels d\u2019urgence par satellite, une id\u00e9e dangereuse selon certains experts<\/strong><\/a><\/p>\n

La situation est encore plus grave qu\u2019on ne l\u2019imagine. AST SpaceMobile, concepteur et fabricant du BlueWalker 3, a l\u2019intention de lancer 243 satellites de ce type, sur 16 plans orbitaux \u00e0 une altitude de 730 kilom\u00e8tres en moyenne. L\u2019intention de la compagnie est de proposer un r\u00e9seau cellulaire bas\u00e9 sur ces antennes spatiales<\/strong> qui permettra aux smartphones actuels de se connecter aux satellites, sans besoin d\u2019un \u00e9quipement sp\u00e9cifique. C\u2019est peu ou prou ce genre de service que proposent d\u00e9j\u00e0 Huawei avec le Mate 50 ou encore l\u2019iPhone 14<\/a>.<\/p>\n