First, a climate conducive to life on Earth depends upon the extraordinarily narrow orbital parameters that define a continuously habitable zone where water can exist in a liquid state.

首先，地球上适宜生命存在的气候取决于极其狭窄的轨道参数，这些参数定义了一个持续可居住的地带，在那里水可以以液态存在。

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Because if you found one in the habitable zone, would that mean it had life?

如果你在适合居住地带发现了一颗行星，就能说明这里有生命吗？

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This newest planet, No. 5, resides in the habitable zone, about 0.8 Earth-sun distances from its star.

最新发现的这颗5号恒星，位于可居住区内，距离它的恒星距离为地-日距离的0.8倍。

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If so, promising planets may have been sterilized by solar flares or frozen in the past, which wouldn't be reflected in present-day habitable-zone calculations.

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This range is called the habitable zone - or colloquially, the Goldilocks zone.

BBC: Exoplanets near red dwarfs suggest another Earth nearer

The astronomers who will use these telescopes are particularly interested in finding any Earth-like objects in the so-called habitable zone around a star, where temperatures permit water to exist in a liquid state.

ECONOMIST: Planetary science: When a world is born | The