亚特兰蒂斯号沿着向东北方向的轨迹，加速飞入多云的天空，沿着预订轨道在星期三下午与国际空间站对接。
Wheeling about to line up on a northeasterly trajectory, Atlantis accelerated through a partly cloudy sky, on course for a docking with the space station around noon Wednesday.
接着开普勒证明了这个椭圆轨道也能很有效解释其他行星的运行轨迹。 然后他提出了行星运动定律，牛顿定律就是以此为理论基础的。
Kepler went on to show that an elliptical orbit is sufficient to explain the movement of the other planets and to devise the laws of planetary motion that Newton built on.
这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹，它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
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