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La NASA ha inviato nello spazio 4 sonde destinate allo studio delle interazioni tra il campo magnetico terrestre e i venti solari che possono compromettere o per lo meno fortemente disturbare le telecomunicazioni, i sistemi GPS o anche le reti elettriche.
Le quattro sonde identiche tra di loro costituiscono la parte centrale della missione “Magnetospheric Multiscale” e si muoveranno all’unisono nello spazio in forma piramidale.
L’Ente spaziale USA conta quindi di riuscire a raccogliere osservazioni tridimensionale e un enorme numero di dati per cercare di capire le ripercussioni degli scontri tra la magnetosfera terrestre e le particelle solari che viaggiano a forti velocità a circa 60'000 chilometri dalla Terra. La missione, costata 1,1 miliardi di dollari, durerà due anni.
Red.MM/AFP/Swing
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