The Earth has a larger surface area than the Moon, so it should be hit more often. The surface area of the Moon is about 38 million km², while the surface area of the Earth is 510 million km². Based on their areas, how many more asteroids of size 1 km would you expect to hit the Earth each year? What is the assumption you are making for this calculation?

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An asteroid is a relatively small inactive and rocky body orbiting the Sun There are millions of asteroids ranging in size from hundreds of kilometres ... View the full answer