木星的卫星木卫一全是岩石，其密度为每立方厘米3.5克。
Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.
科学家们正在仔细研究木卫二，它是木星的卫星。
One place scientists are studying very closely is Europa, a moon of Jupiter.
据推测，所有行星都是由尘埃和气体组成的原始云团凝聚而成，其组成与木星的组成有些相似。
It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.
2007年4月，NASA的哈勃空间望远镜捕捉到木星的月亮——Ganymede——的踪迹，看起来像是正在玩躲猫猫的游戏。
NASA's Hubble Space Telescope caught Jupiter's moon, Ganymede, seemingly playing a game of peek-a-boo in this image in April 2007.
朱诺的首要目标是了解木星的起源和进化。
Juno's principal goal is to understand the origin and evolution of Jupiter.
Europa和Ganymede是木星的卫星。
作为对比，木星的亮度也只有我们的太阳的十亿分之一。
By comparison, Jupiter is one-billionth the brightness of our sun.
木星的个头大到——在这幅图像中我们只能看到它南半球的部分画面。
Jupiter is so big that only part of its Southern Hemisphere can be seen in this image.
在火星和木星的轨道间分布着小行星带，之中有一颗矮行星谷神星。
Between the orbits of Mars and Jupiter lies the asteroid belt, which includes the dwarf planet Ceres.
由于木星其中一条棕色云带隐藏起来了，所以木星的亮度会比平常亮4%。
Jupiter is also brighter than usual by about 4 percent because one of its brown cloud belts is hidden.
其实地球的轨道也受到木星的类似影响，该现象被称为米兰·科维奇旋回。
The Earth's orbit actually does feel similar nudges from Jupiter, known as Milankovitch Cycles.
这也许意味着存在着一个巨大的星体，至少有木星那么大，或者更达到木星的四倍大小。
This might suggest a giant planet, at least the size of Jupiter and maybe up to four times as big.
他看到木星的多颗卫星，这些物体围绕着另一个天体旋转——全然违背了教会的训导。
He saw the moons of jupiter-objects that circled another heavenly body in direct disobedience of the church's teaching.
据本周出版的《科学》杂志的一份报告称，这三个行星都相对较大，质量是木星的5至13倍。
The three planets are all relatively large, having masses between five and 13 times that of Jupiter, according to a report published in Science this week.
这个现象在许多覆盖着冰层的卫星上都得到了证实，例如木星的卫星之一——Ganymede。
This phenomenon has been observed on other icy satellites, such as Jupiter’s Ganymede.
一种学派认为如果一颗系外行星的质量是木星的13倍还多，那它就是一颗棕矮星而不是一颗行星。
One school of thought says that if an exoplanet has a massmore than 13 times that of Jupiter, it is not a real planet, but rather a browndwarf.
木星的带纹实际上是云层，其中南赤道带的主要成分是盘旋在木星有毒气体表面上的氨冰、硫和磷。
Jupiter's bands are actually clouds, with the SEB being primarily made up of ammonia ice, sulfur, and phosphorous hovering above the planet's toxic, gaseous surface.
当它抵达木星后，朱诺探测器将环绕其极点进行观测，了解木星的起源、结构、大气层和磁力圈。
Once it reaches Jupiter, Juno will orbit the planet's pole taking measurements that will provide insight into Jupiter's origin, structure, atmosphere and magnetosphere.
当然，还有一台照相机(JunoCam)可以拍摄壮观的照片，包括此前从未看过的木星的两极的照片。
And of course, there's a camera - JunoCam - that will supply spectacular images, including views of Jupiter's poles that have never been seen before.
这些水分至今还以冰冻的形式存在于土星环，木星的卫星欧罗巴，海王星、天王星以及数以十亿计的彗星之中。
Most of it is still there, frozen solid in, among other things, the rings of Saturn, Jupiter's moon Europa, the bodies of Neptune and Uranus and billions upon billions of comets.
这张彩色照片是1990年12月11日伽利略号宇宙飞船拍摄的，当时飞船正在飞往木星的三年旅程当中。
This color image of the Earth was taken by the Galileo spacecraft on December 11, 1990, as it departed on its three year flight to Jupiter.
400年前，伽利略将他自制的小望远镜对准星空，发现了木星的四颗卫星，我们这才知道其他行星也有自己的卫星。
Four hundred years ago, Galileo raised his homemade spyglass to the sky and spotted four of Jupiter's moons, revealing that other planets could have their own lunar companions.
四百年前，当伽利略将自制的天文望远镜对向夜空时，他发现了木星的四个卫星，从而证实其它行星也会有自己的卫星。
Four hundred years ago, Galileo raised his homemade spyglass to the sky and spotted four of Jupiter's moons, revealing that other planets could have their own lunar companions.
卡西尼号拍摄的图像还在北纬60度发现了一个以前从未见过的巨大的、深色椭圆形环状体，大小与木星的大红斑相同。
The Cassini images also revealed a never-before-seen large, dark oval around 60 degrees north latitude that rivaled Jupiter's Great Red Spot in size.
实际上，如果让参宿四来代替我们太阳系的太阳，它的外层将会延伸超过地球和火星，并且几乎接近于木星的轨道。
In fact, if Betelgeuse replaced the sun in our solar system, its outer layers would extend past Earth and Mars and to nearly the orbit of Jupiter.
天文学家们认为这颗新发现的行星的质量至少是木星的1.25倍，它的运行轨道非常贴近其母星，绕其运行一周只需16.2天。
The new planet is thought to have a minimum mass 1.25 times that of Jupiter and circles in close proximity to its parent star, with an orbit lasting just 16.2 days.
2007年4月，NASA的哈勃空间望远镜捕捉到木星的月亮——Ganymede——的踪迹，看起来像是正在玩躲猫猫的游戏。
NASA's Hubble Space Telescope caught Jupiter's moon, Ganymede, seemingly playing a game of peek-a-boo in this image from April 2007.
2007年4月，NASA的哈勃空间望远镜捕捉到木星的月亮——Ganymede——的踪迹，看起来像是正在玩躲猫猫的游戏。
NASA's Hubble Space Telescope caught Jupiter's moon, Ganymede, seemingly playing a game of peek-a-boo in this image from April 2007.
应用推荐