周三，中国科学家揭开了新一代月球探测器嫦娥四号的面纱，并表示嫦娥四号将于12月发射，执行在月球背面着陆的任务。
Chinese scientists unveiled their latest lunar probe, the Chang'e 4, on Wednesday, saying it will be launched in December on a mission to land on the far side of the moon.
LROC是去年三月向月球远地侧发射的能够拍射高分辨率照片的第一艘空间飞行器，最终它为科学家们拍摄到了一张完整的月球照片。
The LROC was the first space craft to take high resolution photos of the far side of the moon last March, finally giving scientists a complete picture of the moon.
信使号自2004年发射升空以来已经三次掠过水星，最终计划在2011年3月进入太阳系最内部行星——水星的轨道。
MESSENGER has zipped right by Mercury three times since being launched in 2004, and is scheduled to enter orbit around the innermost planet in March of 2011.
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