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漫长的6年半 “信使号”探测器终于到达水星


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“信使号”发射于2004年8月3日,在经过了6年半的漫长旅行之后进入水星轨道。它装备有2块太阳能板以提供自身能量、一块遮光板以保持冷却。信使号每12个小时就围绕水星旋转一周,期间它将拍照以研究这颗行星的地质历史和磁极分布。

“信使号”水星探测器对水星进行为期一年的拍照探测工作,这也是1975年以来,美国宇航局首次对这颗离太阳最近的行星进行探测。

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