earthlike

related: "nasa finds smallest earthlike planet outside solar system. "

NASA发现太阳系外最小的类似地球的行星

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for a planet to be truly earthlike, how long it has been around might be one of its most important features.

对于一个真正的类地行星来说，其星龄也许是其大多数重要特性中的一点。

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This is the area around a host star where an Earthlike exoplanet is capable of forming liquid water, assuming that all life-forms, like those on Earth, do in fact need water to survive.

假设所有的生命形式和地球生物一样，都需要水才能生存的话，宜居带则是指在一颗主恒星周围的一定范围内，至少有一颗能够形成液态水的类地系外行星。

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scientists have discovered the first confirmed earthlike planet outside our solar system, they announced wednesday.

科学家们周三宣称，已经证实发现了太阳系外第一颗类地行星。

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for instance, some systems could house only earthlike planets and no gas giants, gould said.

古尔德说，比如一些星系只拥有类似地球的行星而没有气态巨行星。

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if it does, that would have important implications for kepler's main mission, which is to search for earthlike planets.

如果是，那么对于“开普勒”望远镜搜寻类地型行星这个主要任务来说将有着重要的牵连意义。

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nasa finds smallest earthlike planet outside solar system

美国国家航空航天局在太阳系外发现类地球行星

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but it was the asteroid's earthlike orbit that really got the astronomers' attention.

不过真正让天文学家感兴趣的是它的类地球轨道。

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if earthlike life survived the climate shift, it would most likely be bacteria that live close to the surface.

如果有类地生命能在气候变化中幸存，那它们最可能是紧贴地表生活的细菌。

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there may be millions of possible other earthlike planets revolving in this universe.

可能有几百万颗象地球一样的行星在这个宇宙中旋转。

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we would have two striking similarities to our solar system: a jupiterlike planet and an earthlike planet.

我们会发现它与太阳系有着两大惊人的相似之处，那就是与木星相似的行星和与地球相似的行星。

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but "earthlike" is a relative term.

但“类地”只是相对而言。

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next: an earthlike planet with two suns?

其次：宇宙里存在着有两个太阳而与地球相似的行星吗？

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Both its Earthlike size and its location in the habitable zone are what make Kepler-186f a more likely candidate to accommodate life.

体积与地球相差无几、同样位于宜居带，这两个条件使开普勒-186f成为候选的宜居星球。

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they are known as terrestrial or earthlike planets because of their similar size and composition.

它们的大小和成分与地球相似，因此被称为类地行星。

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the existence of the most earthlike planet yet has just been confirmed

类地球行星的存在已刚被确认

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