Messenger is the first spacecraft to go into orbit around the planet.
信使号探测器是第一进入行星轨道的航天器。
Russian space experts will pick one of the two men, both Muslims, to go into orbit on September 2 next year.
俄罗斯航空专家将从两人中挑选一名于明年9月2日进入太空。
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。
"We will use the tremendous capabilities of this ion propulsion system to climb out of orbit around Vesta, travel for almost another three years through the asteroid belt to dwarf planet Ceres and then go into orbit around Ceres and undertake the same kind of measurements there that we'll be doing at Vesta.
VOA: special.2011.07.27
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