Why are there annual meteor showers like the Leonids and Perseids?

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I understand that meteor showers are due to the Earth passing through the debris left by a comet, but shouldn’t the Earth clear out any lingering meteors after a few revolutions?

In: Planetary Science

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Anonymous 0 Comments

>shouldn’t the Earth clear out any lingering meteors after a few revolutions?

This question grossly underestimates the size of Earth’s orbit. It’s not like a table with some crumbs you can brush off with your arm, it’s like a gymnasium that you’re sweeping with a toothpick.

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