Could Jupiter's Interior Ever Be Filled?

Comets, meteors and other space rocks have been colliding with planets for billions of years. Is there a limit?

Q: Comets, meteors and other space rocks have been colliding with the planets forever. Could the interior of Jupiter eventually be filled in so the rocks and other junk become visible? — Daniel Jones, Washington, D.C. A: Although it would be cool to see space rocks poking out of Jupiter’s deep atmosphere like islands from an ocean, it’s not going to happen. Countless asteroids and comets have indeed plowed into Jupiter, the solar system’s biggest planet, for billions of y...

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