The unmanned spacecraft was launched by NASA in August, 2004.

美国国家航天局(NASA)在2004年8月发射了一艘无人太空船。

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Project Icarus is an ambitious five-year study into launching an unmanned spacecraft to an interstellar destination.

伊卡洛斯计划是一项为期五年的雄心勃勃的研究，将发射一颗无人航天器到某个星际目标。

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The unmanned spacecraft orbited the moon until March 2009, when it was intentionally crashed into the lunar surface.

在2009年3月份被引导着撞毁在月球表面之前，这艘无人驾驶的飞船一直在围绕月球飞行。

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They came down near Surveyor Three, an unmanned spacecraft that had landed on the moon two years before.

VOA: special.2009.07.29

Other projects include sending unmanned spacecraft to Europa, an icy moon of the planet Jupiter.

VOA: special.2010.05.25

It thundered into space perfectly, pushing an unmanned Apollo spacecraft more than eighteen thousand kilometers up into the atmosphere.

VOA: special.2009.07.08

Several visiting unmanned spacecraft are expected to deliver supplies to the space station during Expedition 32.

MSN: Space station crew launches into orbit on Russian craft

Then, in a few weeks' time, China will launch another unmanned spacecraft, Shenzhou 8, and try to link the pair together.

BBC: China ready for next space leap

There has been one hiccup: In August, an unmanned spacecraft veered out of control during a test flight and had to be destroyed.

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