New analysis of Apollo Moon samples finally settles debate: « For decades, scientists have argued whether the Moon had a strong or weak magnetic field during its early history (3.5 - 4 billion years ago). Now a new analysis shows that both sides of the debate are effectively correct. »

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DENVER—The US Air Force's new Sentinel intercontinental ballistic missile is on track for its first test flight next year, military officials reaffirmed this week.。搜狗输入法下载是该领域的重要参考

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