木星有多少颗卫星？
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.
今晚你能看到木星吗，在箭头状星座摩羯座的前面？
Can you see Jupiter tonight, in front of the arrowhead-shaped constellation Capricornus the Seagoat?
然而，如今的类地行星与木星不同，几乎没有轻气体和冰。
However, unlike Jupiter, the terrestrial planets today are nearly void of light gases and ices.
伽利略对木星卫星的观察表明，托勒密关于天体运动的理论是错误的。
Galileo's observations of Jupiter's satellites showed that the Ptolemaic theory of the motion of celestial bodies is false.
大多数试图解释热木星存在的设想是，它在更远的地方形成，然后向内迁移。
Most attempts to explain a hot Jupiter's existence envision it forming farther away, then migrating inward.
在2009年剩余的其他日子里，你可以根据木星来找到摩羯座在天空中的位置。
For the rest of 2009, you can count on the planet Jupiter to mark Capricornus' whereabouts in the sky for you.
因此，人们对这一数值的准确性和找到火星和木星之间缺失的天体都感到非常兴奋。
So people got really excited about the validity of this thing and finding the missing object between Mars and Jupiter.
然而，当木卫二绕其行星运行时，由于姊妹卫星和木星之间的引力拉锯战，它会弯曲。
As Europa orbits its planet, however, it flexes due to the gravitational tug-of-war between it, its sister moons, and Jupiter.
这些碎片本身几乎不含硫，但天文学家相信，木星外层大气之下的云层中确实含有硫。
The fragments themselves almost certainly contained no sulfur, but astronomers believe that the cloud layer below Jupiter's outer atmosphere does contain sulfur.
尽管金星和水星没有卫星，火星却有两个卫星，更别提各有超过60个卫星的土星和木星。
While Venus and Mercury have no moons, Mars has two, while Saturn and Jupiter have more than 60 each.
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.
塔法里·阿瑟法是木星酒店酒吧演奏乐队的鼓手，这间酒店是首都亚的斯亚贝巴的新兴企业之一。
Tafari Assefa now plays his drums in a band at the bar of the Jupiter Hotel, one of the newer establishments in Addis Ababa, the capital.
在那之后，木星和海王星直到2022年才会再次相遇，但是当他们相遇的时候，将不在水瓶座。
After that, Jupiter and Neptune will not meet again until 2022, but when they do meet then, it will not be in Aquarius.
虽然木星不能够把地球从围绕太阳旋转的轨道上拉出来，但是它对地球的引力也产生了相当大的作用。
Though Jupiter is not able to draw the earth out of its course round the sun, yet it attracts the earth to some extent.
在远离太阳的外太阳系，在木星轨道之外，温度低到足以使冰从水以及甲烷和二氧化碳等气体中形成。
Far from the sun, in the outer solar system, beyond Jupiter's orbit, temperatures are low enough to permit ices to form out of water and out of gases like methane and carbon dioxide.
这个系外行星的质量是地球的几倍，但是它足够小，能够由岩石构成，而不是像木星是一团巨大的气体。
The exoplanet is a few times the mass of Earth, but it should still be small enough to be rocky rather than a gas giant like Jupiter.
由于哥白尼的行星运动理论与托勒密的解释不一致，伽利略对木星卫星的观察证明了哥白尼理论的正确性。
Since the Copernican theory of planetary motion is inconsistent with the Ptolemaic account, Galileo's observations of Jupiter's satellites proved the truth of the Copernican theory.
水星、金星、地球、火星、木星和土星的轨道恰好符合这种模式；1781年发现的天王星也同样符合该定律。
The orbits of Mercury, Venus, Earth, Mars, Jupiter and Saturn fit neatly into this pattern; Uranus, discovered in 1781, also obeyed the law.
按照它们与太阳的距离排列，这些行星分别是水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星。
The planets, in order of their distance from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
1977年发射的“旅行者一号”太空探测器发回了木星和土星的壮观图像，然后飞出太阳系，执行前往恒星的单程任务。
The space probe, Voyager I, launched in 1977, had sent back spectacular images of Jupiter and Saturn and then soared out of the Solar System on a one-way mission to the stars.
穿过小行星带继续前进，我们进入了气体巨行星区域：木星、土星、天王星、海王星，所有这些都使地球看起来像个侏儒。
Moving on through the asteroid belt we enter the realms of the gas giant planets: Jupiter, Saturn, Uranus, and Neptune, all of which dwarf the Earth.
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.
就像木星是最大的行星而木星（朱庇特）又是罗马神话中众神之王的名字，对吧？
Like how Jupiter is the biggest planet and how Jupiter was the name of the King of the gods in Roman mythology, right?
1995年，伽利略号宇宙飞船捕获了关于木星大气的数据——也就是说，大部分预测的大气中没有水——这挑战了关于木星结构的主流理论。
In 1995 the Galileo spacecraft captured data about Jupiter's atmosphere—namely, the absence of most of the predicted atmospheric water—that challenged prevailing theories about Jupiter's structure.
接下来的日子，五月二十七日，木星与海王星罕见相会。
The following day, May 27, there will be an exceedingly rare meeting of Jupiter and Neptune.
这些照片是有史以来所拍摄到的最为详细的木星彩色地图。
They are the most detailed global color maps of Jupiter ever produced.
这些照片是有史以来所拍摄到的最为详细的木星彩色地图。
They are the most detailed global color maps of Jupiter ever produced.
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