木卫三

截止2017年初，还没有探索木卫三的任务。

As of early 2017 , there is no mission exploring Ganymede .

木卫三的动力学参数

A Study of Dynamical Parameters of Ganymede

和其他卫星一样，木卫三被认为在其地壳下存在海洋。

Like the other moons , Ganymede is thought to have an ocean beneath its crust .

木卫三是太阳系中最大的卫星，它是一个由冰冷岩石构成的卫星，甚至比水星还要大。

The largest moon in our solar system , Ganymede is an icy rock even bigger than Mercury .

和月亮相似，木卫三也是永远以同一面对著中央的母星-木星。

Like Earth 's Moon , Ganymede keeps the same face towards its central planet , in this case Jupiter .

木卫三，木卫二和木卫一在木星的一边，而木卫四却在另一边。

Ganymede , Europa and Io are on one side of Jupiter , while Callisto is on the other side .

以其5268千米的直径，木卫三成为太阳系中最大的卫星。

With a diameter of 5,268 kilometers ( 3.273 miles ), Ganymede is the largest satellite in the solar system .

木卫三拥有的液态和固态水量超过了地球水量的30倍。

more than 30 times as much water as our home planet is thought to reside there as liquid and ice .

木卫一和木卫三也是在这个图片可见，前一靠近木星的中心，后者是右上角附近的蓝点白点。

Io and Ganymede are also visible in this image , the former a white spot near Jupiter 's center and the latter a blue spot near the upper right .

事实上，对木卫三地表的调查显示，当液态水从地表下通过裂缝或其他出口喷出时，可能会形成洪水。

In fact , investigation into Ganymede 's surface shows that there may have been a flood once when liquid water escaped from beneath the surface through cracks or other openings .

木卫三是太阳系中绕木行星中最大的一颗，当木卫三阴影掠过木星风暴时，形成了像眼睛瞳孔一样的画面。

When the shadow of Ganymede , the largest moon in our solar system , passed over Jupiter 's storm , it looked just like a pupil inside a giant eye .

包括木星的卫星：木卫四和木卫三、海王星的海卫一，甚至是冥王星。

including Jupiter 's moons Callisto and Ganymede , Neptune 's Triton , and even Pluto .

按照拥有的水量排序，从少到多依次是：土卫二，土卫四，地球，木卫二，冥王星，海卫一，木卫四，土卫六和木卫三。

In order of how much water they have , from the least to the most , they are : Enceladus , Dione , Earth , Europa , Pluto , Triton , Callisto , Titan , and Ganymede .