They say six large impact basins with central magnetic anomalies offer clues to the origin of lunar magnetism.
他们表示，六次大型撞击盆地并进而产生的中心磁场异常为月球磁场的起源提供了线索。
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Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin. Christopher Intagliata reports The Apollo moon missions ended almost 40 years ago.
研究表明，月球岩石中的水资源比地球水资源包含更多的重氢元素，意即月球水有可能来源于彗星。
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Moon rocks show that lunar water has more heavy hydrogen than does terrestrial water, indicating a cometary origin.