The US space agency is scheduled to retire its space shuttles next year, and has begun the development of a new human space launch "architecture" called Constellation.

美国航天局计划在明年让航天飞机退役，现在他们已经开始开发一种新的被称作星座的载人太空发射装置。

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Both satellites were built at Surrey satellite Technology Limited (SSTL) in Guildford, under contract with the Nigerian National Space Research and Development Agency (NASRDA).

这两颗卫星都是在吉尔福德的萨里卫星技术有限公司(SSTL)，根据和尼日利亚国家空间研究和发展署(NASRDA)的合同制造的。

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After leaving railways he was snapped up by Japan's National Space Development Agency and was its president until he retired in 1977.

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Criticised for developing launch vehicles that cost twice as much as American or European rockets, the National Space Development Agency has been trying to streamline operations.

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"We've just collected images over Mali, which we've handed over to the armed forces because we believe they will be helpful to them in the peacekeeping mission over there, " says Seidu Mohammed, director-general of the National Space Research and Development Agency (NASRDA).

BBC: Nigeria's space race