What would happen if an asteroid hit our Moon?

Most asteroids are small and slow enough that they just hit the Moon to create a new crater. Even the largest asteroid, Ceres - with  a diameter of 975km (605 miles) wouldn't cause lasting damage. On the other hand, it would cause a spectacular explosion that would be visible from Earth! To remotely displace or break up the moon, it would take an object of roughly the same size  - which won't happen!

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