Asteroid impacts have changed the poles of the moon over billions of years

New research shows that the moon’s poles have changed as a result of asteroid collisions over billions of years.

Astronomers have long used lunar craters to plot the history of both the moon and all Solar System, because the distribution of devastation caused by asteroid impacts paints a picture of the violent conditions present in the young solar system. The new research turns the tables around those studies by simulating the removal of thousands of craters and also by looking at the effects of smaller craters, thus returning 4.25 billion years of the moon’s history.


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