Murray N, Holman M
Canadian Institute for Theoretical Astrophysics, 60 St George Street, University of Toronto, Toronto, Ontario M5S 3H8, Canada.
Nature. 2001 Apr 12;410(6830):773-9. doi: 10.1038/35071000.
Our understanding of the Solar System has been revolutionized over the past decade by the finding that the orbits of the planets are inherently chaotic. In extreme cases, chaotic motions can change the relative positions of the planets around stars, and even eject a planet from a system. Moreover, the spin axis of a planet-Earth's spin axis regulates our seasons-may evolve chaotically, with adverse effects on the climates of otherwise biologically interesting planets. Some of the recently discovered extrasolar planetary systems contain multiple planets, and it is likely that some of these are chaotic as well.
在过去十年里，我们对太阳系的认识发生了革命性的变化，这是因为发现行星的轨道本质上是混沌的。在极端情况下，混沌运动可以改变行星围绕恒星的相对位置，甚至将一颗行星从一个星系中弹出。此外，行星的自转轴——地球的自转轴调节着我们的季节——可能会发生混沌演化，对其他在生物学上有研究价值的行星的气候产生不利影响。最近发现的一些太阳系外行星系统包含多颗行星，其中一些很可能也是混沌的。
