科学家发现一类地行星“百分之百”适宜生命存活_科技

科学家发现一类地行星“百分之百”适宜生命存活

An Earth-size planet has been spotted orbiting a nearby star at a distance that would makes it not too hot and not too cold - comfortable enough for life to exist, researchers announced September 29.

据美国太空网9月29日报道，研究人员最新宣称探测到一颗类似地球的行星，其环绕邻近恒星距离适中，得以保持适宜的气候和温度——舒适程度足以让生命存活下来。

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. And the planet's discoverers are optimistic about the prospects for finding life there.

如果得以证实，这颗被命名为“Gliese 581g”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。而探测者们则因此对找到外星生命充满希望。

"Personally, I would say, my own personal feeling is that the chances of life on this planet are 100 percent," said Steven Vogt, a professor of astronomy and astrophysics at the University of California. "I have almost no doubt about it."

“就个人角度而言，我认为这颗行星上存在生命的概率为100%，”美国加州大学圣塔克鲁兹分校天体物理学家史蒂文-沃格特说。“对此我几乎毫不置疑。

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. The other newfound planet, Gliese 581f, is outside the habitable zone, researchers said.”