With NASA’s Messenger probe now going into orbit around Mercury, Dr Hazen predicts that it will find only 300 or so minerals on the planet.
NASA的信使号水星探测器正进入围绕水星的轨道，海森博士预言水星上只会找到300种左右的矿物。
Flyby: on October 6, 2008, the Messenger probe successfully completed its second flyby of Mercury, sending reams of data back to Earth.
飞掠：2008年10月6日信使号第二次成功飞掠后发回地球的数据。
NASA's Mercury probe Messenger has become the first spacecraft to go into orbit around the closest planet to the Sun.
美国国家航空航天局(NASA)的信使号水星探测器成为有史以来第一个到达水星轨道的空间飞行器。
Mercury was visited first by the Mariner 10 probe in the 1970s; and by Messenger currently
在1970年水手10号探测器第一次造访水星，目前信使号在执行水星探测任务。
NASA's Mercury probe Messenger last Thursday became the first spacecraft to go into orbit around Mercury.
上周，美国宇航局的信使号水星探测器成为历史上第一个进入水星轨道的飞行器。
NASA's Mercury probe Messenger last Thursday became the first spacecraft to go into orbit around Mercury.
上周，美国宇航局的信使号水星探测器成为历史上第一个进入水星轨道的飞行器。
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