The failure was caused by a problem with the Progress' Soyuz rocket, which is similar to the one Russia uses to launch its crew-carrying vehicle — also called Soyuz — to the station.

这次失败是由“进步号”的联盟火箭问题引起的，这和国际空间站的俄罗斯载人飞船相似--也称为联盟号。

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"Developing a mid-class launch vehicle in Europe would have cost between three and five billion euros, and building the Soyuz launch pad has been just - if I can say 'just' - around 400 million euros, " he explained.

BBC: A rocket abroad - Soyuz in French Guiana