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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China has launched an unmanned spacecraft, in what is described as Beijing's first step toward building its own space station.

中国发射了一架无人飞船，这被称为北京建造自己空间站的第一步。

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It is possible that later this year China will launch an unmanned spacecraft to orbit the moon, a step towards an eventual moon landing by a Chinese astronaut.

今年年底他们有可能将一艘无人驾驶的宇宙飞船送上月球既定轨道，这为中国宇航员最终登月奠定坚实一步。

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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

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

VOA: special.2009.07.08

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

VOA: special.2010.05.25

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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Early in the year, a Soyuz rocket carrying an unmanned Progress spacecraft suffered a launch failure, a failure that had some concerned that NASA might decide to leave the International Space Station without a crew.

FORBES: Russian Space Program Suffers Another Failed Launch

Astrium's plan to tackle defunct satellites is to use an unmanned chase spacecraft to get in range, fire a barbed harpoon into the body of the rogue hardware and then use a smaller propulsion unit attached to a tether to tow it back towards the atmosphere where it will burn up safely on re-entry.

CNN: Space harpoon plan to nail orbital garbage