An unmanned rocket carrying supplies to the international space station has exploded shortly after take-off in Florida. It's being seen as a major setback15 for NASA. The mission had been designed to help the US to take astronauts to space again without having to rely on Russian rockets.
一枚向国际空间站运输物资的无人火箭在佛罗里达州升空后不久就爆炸了，这被视为是美国航天局遭遇的一大挫败。这次任务的目的是帮助美国在无需依赖俄罗斯火箭的帮助下降宇航员送入太空。
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