The satellites, built by the European Space Agency (ESA), will look at interaction between the sun and the Earth.

这两枚欧洲宇航局建造的卫星将探测太阳和地球之间如何进行相互作用。

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The European Space Agency (ESA), the Russian Federal Space Agency (RKA) and Nasa have each poured billions of pounds into such a craft without success.

欧洲航天局，俄罗斯联邦航天局和美国宇航局已分别投入到这样一门手艺没有成功数十亿英镑。

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Computer generated images released by the European Space Agency (ESA) have revealed millions of assorted debris around the earth.

欧洲宇航局近日公布的电脑合成图显示，地球被数百万块太空垃圾包围。

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The UK Space Agency engaged propulsion experts at the European Space Agency (Esa) to run the rule over the company's engine design.

BBC: Key tests for Skylon spaceplane project

The European Space Agency (Esa) is about to lose the use of one of its flagship satellites.

BBC: Herschel space telescope to go blind

Vega is the latest rocket to be developed by the European Space Agency (Esa).

BBC: Esa's Vega rocket puts Proba-V vegetation mission in orbit