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.
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 terrestrial planets—like Mars and Earth—composed largely of rocks and metals, and the large gas giants, like Jupiter.
诸如火星和地球这样的类地行星主要由岩石和金属构成，而木星则是大型气态行星。
Like how Jupiter is the biggest planet and how Jupiter was the name of the King of the gods in Roman mythology, right?
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？
It's definitely not a gas giant like Jupiter. Nor is it habitable—it's too hot.
它肯定不是像木星一样的巨型气体行星，也不适宜人类居住——那太热了。
More than 400 exoplanets have been discovered by astronomers but most are gas giants like Jupiter that would be inhospitable to life as we know it.
在此之前，天文学家们已经发现了超过400颗系外行星，但他们大多是像木星一样的气态巨星，这显然是不适于居住的。
Though the researchers have no direct proof that the new planet is rocky, its mass means it is not a giant gas planet like Jupiter, they said.
尽管目前研究人员还没有直接证据证明这是一颗岩状行星，但是他们宣称，这颗行星的质量表明，它并不是一颗类似木星的巨大气体行星。
A large planet, like Jupiter or Neptune, that is composed largely of gaseous material.
气体巨行星是像木星或海王星一类包含大量的气体物质的大的行星。
Most of the new planets that have been discovered since 1992 tend to be more like Jupiter and closer to their star, so it's highly unlikely that they support intelligent life like that found on Earth.
自1992年以来，绝大多数已发现的行星都与其恒星较为接近，这更像是木星，因此，在这些行星上面很可能不会存在像地球上一样的智慧生命。
Soon after, Galileo Galilei in Italy turned his own telescope to the sky for the first time and saw incredible sights, like craters on the moon and four bodies orbiting Jupiter.
不久以后，意大利的伽利略第一次将他自己的望远镜对准了天空，并看到了难以置信的景象，诸如月球上凹凸不平的坑和围绕木星运行的四个天体。
It is too small and too pathetic. It has not even managed to sweep up the cosmic detritus in its neighbourhood as real, macho planets like Jupiter and Earth have done.
它太小，太可怜了，甚至没有能力像木星和地球这类强势行星那样将周围的宇宙碎块清理干净。
"This is the first confirmed rocky planet in another system," astronomer Artie Hatzes told CNN, contrasting the solid planet with gaseous ones like Jupiter and Saturn.
“这还是在另一个星系中首次被确认的岩态星球，”天文学界ArtieHatzes如是告诉cnn，与之对比的是，像木星与土星一样的气态行星。
Roberto Silvotti of the National Institute for Astrophysics in Naples and his colleagues spotted the planet, a gaseous giant like Jupiter, circling a star called V 391 Pegasi.
意大利国家天体物理研究所（National Institutefor Astrophysics）（在那不勒斯（in Naples））的罗伯特•斯沃迪（Roberto Silvotti）与其同事发现了这颗像木星般的巨大气化行星。 它所环绕的恒星被命名为V 391Pegasi。
The exoplanet, called WASP-12b, is a gas giant, like Jupiter.
这颗命名为WASP - 12b的系外行星是一颗类似于木星的巨大气态星球。
Many are gaseous giants like Jupiter, others icy like our solar system's outermost planets (or in Pluto's case, former planet).
它们大多是像木星一样的气态怪物，其它的就是像我们太阳系外层行星似的寒冷(或像冥王星的情形：属于前行星)。
The new Jupiter-like planet discovered appears to have survived the fireball, for the moment.
目前来看，新发现这颗类似木星的行星好像已经从火球阶段幸存了下来。
Like its bigger neighbor Jupiter, Saturn is a gas planet made mostly of hydrogen and helium.
就像比它更大的邻居-木星一样，土星也是气体行星，主要由氢和氦所组成。
It may represent a new class of failed stars straddling the division between stars and Jupiter-like planets.
它可能代表了一类新的“失败之星”，即介于恒星和类木行星之间的一种星体。
Just a handful are close in size to our planet, and only a few of those may be rocky like the Earth, rather than gaseous like Jupiter or icy like Neptune.
只有少数星球在大小上接近于我们所居住的这颗行星，而且也只有这其中的少数可能像地球一样呈岩石状，而不是像木星那样呈气态状或海王星那样的冰状。
A star might not gobble a Jupiter whole when it moves close enough, but it could surely swallow a canapé like proto-Earth.
即便离得足够近，恒星也无法整口吞下木星大的行星，但它要吞下地球这么大的行星肯定是小菜一碟。
When other planets clash with Jupiter, you could find that your partnerships have more than their fair share of troubles and you could end up with more competitors than you like.
当其他行星木星的冲突，你会发现你的伙伴关系的麻烦比他们更公平地分享，你可以结束了更多的竞争对手比你喜欢。
Generally, the best time to observe an outer planet like Jupiter is when the planet is retrograding.
一般来说，像观察木星一类外太空行星的最佳时间就是行星在逆行的时候。
Estimates of their mass also indicate that they are rocky planets, rather than being gaseous like Jupiter.
通过对它们质量的估计得知它们是岩石行星，而不是像木星那样的气态行星。
It's a gas giant like Jupiter but about four times as massive.
它是类似于木星的气体巨星，但它的体积是木星的四倍。
Such dark matter could be in the form of extremely dim stars of low mass, of large planets like Jupiter, or of black holes, either small or massive.
这种暗物质可能是特别暗的质量轻的恒星，大的行星如木星或者是大、小黑洞。
The planet, HR 8799e, is a gas giant rather like Jupiter, but about 10 times as massive — similar to the other three planets in the system, which Marois discovered in 2008.
这颗编号为HR 8799e的行星是一颗与木星相似的气态巨星，但其质量约是木星的10倍，这一点与该星系中由Marois于2008年发现的其它三颗行星相似。
Scientists now discover there was a tag-along as well: a Jupiter-like planet known as HIP 13044b.
科学家目前发现一颗尾随着银河系的星体，这就是我们所知道的HIP 13044b的木星状行星。
Astronomers are interested in Mercury, the closest planet to the sun, because it is a terrestrial like Earth, not gassy like Jupiter.
天文学家对水星感兴趣是因为它是类地行星而非类木行星。
Astronomers are interested in Mercury, the closest planet to the sun, because it is a terrestrial like Earth, not gassy like Jupiter.
天文学家对水星感兴趣是因为它是类地行星而非类木行星。
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