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並前往https://www.nationalgeographic.com/science/article/nasas-dart-spacecraft-will-smash-into-an-asteroid-to-practice-saving-earth

This NASA spacecraft will smash into an asteroid—to practice ...

The DART mission will try to alter a harmless asteroid's orbit, a technology that could one day defend Earth from armageddon. ByMichael Greshko.

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