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La NASA ha lanciato sabato Maven, una sonda di 2,45 tonnellate che sarà chiamata a spiegare la perdita nello spazio di gran parte dell'atmosfera di Marte, che in un lontano passato era propizia per la vita e oggi non lo è più. Si tratterà insomma di capire dove sono finiti acqua e CO2 un tempo presenti sul pianeta rosso.
Maven era a bordo di un razzo Atlas V, partito senza intoppi malgrado condizioni meteo ritenute sfavorevoli dalla base di Cape Canaveral, in Florida, alle 19.28 ora svizzera. Raggiungerà il suo obiettivo il 22 settembre del 2014, dopo quattro correzioni di rotta in dicembre, entrerà in orbita e la sua missione durerà almeno un anno.
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