An unmanned probe touched down on a comet for the first time on Wednesday, as the European Space Agency’s Philae lander successfully negotiated a perilous seven-hour descent from its Rosetta mother ship on to the irregular nucleus of Comet 67P.
一个无人驾驶的探测器周三首次在一颗彗星表面着陆,欧洲航天局(European Space Agency)的飞来号(Philae)着陆器成功与母船罗塞塔号(Rosetta)分离,在危险中下降了7个小时,最终在彗星67P的不规则中心着陆。
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