Ganymede is the largest moon in our solar system.

伽尼墨德(木卫三)是太阳系里最大的卫星。

" Jupiter's biggest moon is Ganymede, not Callisto, " she said, pointing over Ron's shoulder at a line in his Astronomy essay, " and it's lo that's got the volcanoes."

“木星最大的卫星是木卫三，不是木卫四，”她从罗恩身后指着他那天文学论文中的一行文字说道，“有火山的应该是木卫一。”

They're mostly rock and ice, though Ganymede, the biggest, may have an iron core.

大多是岩石和冰构成，最大的木卫三可能有一个铁核。

Whether Ganymede' s oceans have a similar chemical endowment is one of the biggest questions about the moon, says Leigh Fletcher, a planetary scientist at the University of Leicester, and one of the scientists working on the mission.

莱斯特大学的行星学家利弗莱彻是此次任务的学家之一，他说，木卫三的海洋是否有类似的化学物质是有颗卫星最大的问题之一。

The ESA took the opportunity to do a test run of Juice's instruments, which it will use to look for molecular signatures of habitability on the moons Europa, Ganymede and Callisto.

欧洲航天局借此机会对 Juice 的仪器进行了测试，些仪器将用于寻找木卫二、木卫三和木卫四上适宜居住的分子特征。

In 1610, for example, Galileo used the first telescope to discover Jupiter's moons Io, Callisto, Europa, and Ganymede — now known as the Galilean Moons.

例如，1610 年，伽利略用第一台望远镜发现了木星的卫星木卫一、木卫四、木卫二和木卫三，些卫星现在被称为伽利略卫星。

The current count is 95 confirmed moons for Jupiter, including the largest moon in our solar system, Ganymede, which is larger than the planet Mercury.

目前已确认的木星卫星有 95 颗，其中包括太阳系中最大的卫星——木卫三，比水星还大。

Jupiter's moons include the largest in the solar system, Ganymede, an ocean moon called Europa and a volcanic moon named lo.

木星的卫星包括太阳系中最大的木卫三，一颗名为木卫二的海洋卫星和一颗名为lo的火山卫星。

These could include Europa's neighbor, Ganymede - the largest moon in our solar system - and Saturn's moon, Titan.

可能包括木卫二的邻居、太阳系中最大的卫星木卫三以及土星的卫星土卫六。

My moon, Ganymede, is big too.

我的卫星木卫三，体型也十分庞大。

Ganymede is the largest moon in the solar system, and is even larger than the planet Mercury!

木卫三是太阳系中最大的卫星，体积甚至超过水星！

Ganymede, on the other hand, is further out in a safer, less radiation-riddled part of Jupiter's neighborhood.

另一方面，木卫三离木星更远，在更安全、辐射更少的地方。

They're called Ganymede, Callisto, and Europa.

几个分别叫木卫三、木卫四和木卫二。

But Jupiter's moon Ganymede is bigger than Mercury.

但木星的卫星木卫三其实比水星还大。

Juice will investigate three of the so-called Galilean moons-Callisto, Europa and Ganymede, all of which are thought to have subsurface oceans.

“果汁”探测器将调查三颗所谓的伽利略卫星——木卫四、木卫二和木卫三，三颗卫星都被认为拥有地下海洋。

The four largest moons, Io, Europa, Ganymede, and Callisto, are large enough to be seen from Earth with a telescope.

从地球上就可以用望远镜看到最大的四颗卫星，木卫一，木卫二，木卫三，木卫四。

And JUICE carries a suite of ten science instruments to map its surface, its interior and its powerful magnetic field.

JUICE 携带了一套 10 个学仪器来了解木卫三表面、内部和强大磁场的信息。

The biggest of Jupiter's moons is Ganymede.

木星最大的卫星是木卫三（盖尼米德）。

Ganymede is one of Jupiter's likely ocean-bearing moons.

木卫三是可能含有海洋的木星卫星之一。

The probe' s cameras will add much more detail to the existing, low-resolution maps of Ganymede' s surface.

探测器的摄像头将为现有的低分辨率木卫三表面地图添加更多细节。