木卫二

吉姆公映这部电影时并不知道六个月前NASA（美国宇航局）已拨款给我集合的一个团队去研发木卫二自行式水下航行器的原型。

What Jim didn 't know when he released that movie was that six months earlier NASA had funded a team I assembled to develop a prototype for the Europa AUV .

另一个非常相似的卫星，木卫二。

Another moon , very similar , is Europa .

木卫二上有间歇泉将海水喷射到太空。

Which has geysers spewing seawater into outer space .

有人认为这些液态水贮存在木卫二地壳下的海洋中。

The water is thought to be stored in oceans underneath Europa 's surface .

与木卫二相似，它也可能在厚冰层之下有个海洋。

Similarly to Europa , it likely contains an ocean deep under the ice .

伽利略号在1996年时探访了木星系统，对木卫二进行了详细的观察。

Galileo visited Jupiter 's system in 1996 and made fabulous observations of Europa .

木卫二的内部结构模型和海洋层&伽利略探测的最新研究进展

Internal Structure Models and Subsurface Ocean of Europa - Recent Researches After the Galileo Mission

科学家们正密切关注的地方是木卫二，木星的一个卫星。

One planet scientists are studying very closely is Europa , a moon of Jupiter .

太空探测器提供了证据表明木卫二表层之下有一个海洋。

Space probes have provided evidence that Europa has a large ocean under its surface .

问题17：关于木星的卫星木卫二科学家们有什么发现？

Question 17 . What have scientists found about Europa , a moon of Jupiter ?

和木卫二类似，液态水被认为存在于这颗卫星的地壳之下。

The water is supposedly underneath the crust of the moon , similar to Europa .

问题27.科学家们发现关于木卫二的什么信息？

Question 27 . What have scientists found about Europa , a moon of Jupiter ?

科学家们认为在木卫二海洋底部可能存在这样的化学成分。

Scientists believe there might be such chemicals lying at the bottom of Europa 's ocean .

木卫二是木星的一个卫星，它或许是最令人感兴趣的海洋星球。

Europa , which is a moon of Jupiter , is probably the most intriguing ocean world .

所以不能排除缺乏光的木卫二地下海洋有生命形成的可能性。

So the lack of light in Europa 's sub-surface ocean doesn 't automatically rule out life forming .

因此，并不能仅仅因为木卫二地下海洋缺乏阳光就排除其孕育生命的可能。

So the lack of light in Europa 's subsurface ocean doesn 't automatically rule out life forming .

一旦在南极洲通过测试，机器人就可以被送往木卫二去寻找那里的生命。

Once tested in Antarctica , robots could be sent to Europa to search for life there too .

最近，木星的卫星木卫二的特写照片显示，在其冰冷的表面下有水的迹象。

Recently , close up pictures of Jupiter 's moon Europa shows signs of water beneath its icy surface .

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 .

探测器也让科学家们认为木卫二表层有散发出火山热的岩石核心。

The probes have also made the scientists think that under its surface Europa has a rocky core giving off volcanic heat .

生命或许存在类似的环境和冷冻水的其他行星类似机构-特别是在火星和木星的卫星木卫二。

Life could perhaps exist on other planets with similar environments and similar bodies of frozen water-notably Mars and Jupiter 's moon Europa .

比如，土卫二和木卫二是太阳系中两颗冰封的卫星，表面温度是零下几百度。

Enceladus and Europa , for instance , are two icebound moons in the local solar system with surface temperatures hundreds of degrees below zero .

比如，你可以认为达纳吉尔凹地是一个比火星或木星的卫星木卫二更难以生存的地方。

You could make the case that Danakil is a harder place to live than on Mars or Jupiter 's moon Europa , for instance .

该任务包括向木卫二发射一艘飞船，并对卫星表面进行拍照。这样的定点探测会反复进行，让我们有机会对木卫二不断进行分析并探索生命的存在。

This mission is sending a spacecraft to Jupiter 's moon to take pictures of the surface . This flyby would happen repeatedly , offering multiple opportunities to analyze the moon and search for life .

基于前述及若干理由，有些科学家便提出，在火星以及被冰层覆盖的木星卫星「木卫二」上，以地质活动所产生的氢气为生的产甲烷菌，可能会形成地下细菌生态系的主体。

Based on these and other considerations , some scientists have proposed that methanogens living on geologically derived hydrogen might form the base of underground microbial ecosystems on Mars and on jupiter 's ice-covered moon , europa .

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 .

比如，木星的一颗名叫欧罗巴（木卫二）的卫星，体积和我们的月球差不多，可能隐藏着一片次表层海洋，水量是地球的两倍多。即便拥有这样的水量，木卫二相比邻星木卫三却是相形见绌；

A moon of Jupiter called Europa , for example , which is roughly the size of our own Moon , likely hides a subsurface ocean with more than twice as much water as there is on Earth . Yet even that pales in comparison to Europa 's neighbour Ganymede ;