gliese 581g

Gliese 581g has a mass three to four times Earth 's , the researchers stimated .

研究人员估测Gliese581g行星的质量大约是地球的3到4倍。

It found that Gliese 581g has a mass three to four time the Earth 's and orbits its star in just under 37 days .

Gliese581g的质量是地球的3-4倍，并且公转时间仅为37天。

Of course , whether life could really be supported on Gliese 581g will need much more investigation and , most probably , technologies which don 't exist yet .

当然，Gliese581g上是否适合生命生存还需要很多的调查，而且，很可能这方面的技术并不纯在。

Gliese 581g is one of two new worlds the team discovered orbiting the red dwarf star Gliese 581 , bumping that nearby star 's family of planets to six .

Gliese581g是环绕红矮星Gliese581两颗行星中的其中一颗，它的发现使该行星系内行星数量增加至6颗。

If confirmed , the exoplanet , named Gliese 581g , would be the first Earth-like world found residing in a star 's habitable zone - a region where a planet 's temperature could sustain liquid water on its surface .

如果得以证实，这颗被命名为“Gliese581g”的系外行星将成为第一颗类似地球的世界——该行星的温度可维持表面存在液态水。

Estimates suggest Gliese 581g is 0.15 astronomical units ( One astronomical unit is the average distance between the Earth and sun ) from its star , close enough to its star to be able to complete an orbit in just less than 37 days .

初步分析认为Gliese581g与恒星的距离为0.15个天文单位（一个天文单位约等于地球至太阳的平均距离），较近的轨道距离使得该行星公转一周只需37天。

Last year , Pennsylvania State University researchers said Gliese 581d - and its companion Gliese 581g - were simply a trick of the light caused by magnetic bursts from a local star 22 light-years away .

去年，美国宾夕法尼亚州州立大学的研究人员曾指出：Gliese581d和581g发出的信号不过是距离地球约22光年的一颗星体出现磁场爆发、继而造成的光迹。