NASA’s Kepler space telescope has discovered three planets that may be able to support life, while one of them is the most earth-like world spotted to date, scientists say.
美國(guó)國(guó)家航空航天局公開表示，開普勒天文望遠(yuǎn)鏡已經(jīng)發(fā)現(xiàn)三顆適合人類居住的星球。并且，科學(xué)家稱，其中之一是迄今為止發(fā)現(xiàn)最像地球的星球。

Two exoplanets have been discovered in their stars’ habitable zones, what is known as just the right range of distance where liquid water can exist on a planet’s surface.
開普勒-62的行星系統(tǒng)中，兩顆系外行星在它們恒星周圍的宜居區(qū)中被發(fā)現(xiàn)，行星離恒星的距離適中使得行星表面理論上應(yīng)保有液態(tài)水。

Kepler-62f is a rocky world 1.4 times bigger than earth and circles a star smaller and dimmer than the sun. Its neighbor, Kepler-62e, is just 1.6 times larger than Earth. Both are the smallest exoplanets ever found in their stars’ habitable zones.
開普勒-62F 行星是一個(gè)比地球大1.4倍的巖石世界，它圍繞著一顆比太陽小且暗的恒星運(yùn)動(dòng)。它的鄰居開普勒-62E行星是地球體積的1.6倍。這兩顆行星是在它們恒星周圍的的宜居區(qū)中所被發(fā)現(xiàn)的最小的系外行星。

Both Kepler-62e and f, “l(fā)ook very good as possibilities for looking for life,” said Bill Borucki, the Kepler science principal investigator, of NASA’s Ames Research Center in Moffet Field, California.
比爾布魯克是來自加利福尼亞州的開普勒科學(xué)首席研究員，他表示說，“開普勒-62E行星和開普勒-62F行星都是看起來可能存在生命的星球”，他在墨菲特地區(qū)的美國(guó)國(guó)家航空航天局埃姆斯研究中心工作。

The third potential earth-like planet identified by the scientists is Kepler-69c, standing at 1.7 times bigger than Earth and orbits a star similar to our own sun. Borucki said it represents a big step towards finding the first ever “alien earth”.
科學(xué)家發(fā)現(xiàn)的第三顆可能類似地球的行星是開普勒-69C行星，它是地球體積的1.7倍，圍繞著一顆類太陽的行星軌道運(yùn)動(dòng)，布魯克說這次的發(fā)現(xiàn)是人類在尋找第一顆“外星地球”過程中所邁出的一大步。

“We’re moving very rapidly towards finding an Earth analogue around a star like the sun,” Borucki told . Kepler-69c lies 2,700 light-years away in the Cyngus constellation.
“人類正在尋找一顆類地行星的探索之路上快步前行”，布魯克在SPACE網(wǎng)站的訪談上說。開普勒-69C行星位于距離地球約2700光年的天鵝座星系。

The Kelper-62 discovery paper, which is being led by Borucki, was published Thursday in the journal Science.
布魯克發(fā)起的開普勒-62探索論文于當(dāng)?shù)貢r(shí)間周四在《科學(xué)》雜志上發(fā)表。

The three potentially habitable worlds are part of a larger find.? Scientists unveiled a total of seven new exoplanets, five in the Kepler-62 system and two in Kepler-69.
這三顆可能適宜人類居住的星球只是最近發(fā)現(xiàn)之中的一部分，科學(xué)家稱總共有七顆新的系外行星被發(fā)現(xiàn)，其中五顆屬于開普勒-62行星系統(tǒng)，另外兩顆則屬于開普勒-69行星系統(tǒng)。

The five newfound planets range from 0.54 to1.95 times the size of earth, but only Kepler-62e and f are potentially habitable.
開普勒-62E行星系統(tǒng)中的五顆新發(fā)現(xiàn)的行星分別是地球體積的0.54到1.95倍，其中只有開普勒-62E和F行星可能適宜人類居住。

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