The solar system is one of the comforting constants of human existence. No matter what happens, the planets will continue to orbit the sun, creating predictable patterns in the sky, lined up in a neat row along the system's orbital plane. But it may not always be so orderly. According to one of the more popular models of the early solar system, the Nice model, our corner of the galaxy may have once been two planets richer, boasting four ice gian…
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The solar system is one of the comforting constants of human existence. No matter what happens, the planets will continue to orbit the sun, creating predictable patterns in the sky, lined up in a neat row along the system's orbital plane. But it may not always be so orderly. According to one of the more popular models of the early solar system, the Nice model, our corner of the galaxy may have once been two planets richer, boasting four ice gian…