VOA慢速英語:NASA發(fā)現火星存在液態(tài)水的"強有力"證據

Scientists have found strong evidence of salt water on the planet Mars, the U.S.space agency NASA announced Monday.

美國太空總署國家航空航天局周一宣布，科學家們在火星表面發(fā)現了有液態(tài)水活動的“強有力”證據。

NASA has found lines of "hydrated" salt minerals on Mars. Scientists say these minerals would require liquid water to be created. And where there's liquid water, they say, there could be life.

NASA發(fā)現火星上存在水合礦物條紋?？茖W家們稱，這些礦物需要液態(tài)水才能被創(chuàng)建。他們表示，哪里存在液態(tài)水，哪里可能就會存在生命。

These dark, narrow, 100-meter-long streaks called "recurring slope lineae" flowing downhill on Mars are thought to have been formed by flowing water. The image, taken with a special camera, uses false colors to show detail better.

Jim Green is the director of planetary science at NASA Headquarters. He said during a news conference that "today, we are revolutionizing our understanding of this planet."

吉姆·格林是美國航空航天局總部行星科學主任。他在一次新聞發(fā)布會上表示：“今天，我們正在徹底改變我們對這個星球的認知。”

Doug McCuistion is the former head of NASA's Mars program. He told the Boston Herald that "if they are announcing that they have found easily accessible, freely flowing liquid water under the surface ... that has massiveimplications both for the potential for life on that planet and sustainability of humans." Visit the website www.chinavoa.com to get more information!

道格·麥克奎斯遜是美國航空航天局火星計劃前負責人。他向波士頓先驅報透露：“如果他們宣布，他們已經找到地表下易于獲取、自由流動的液態(tài)水，......這將對那個星球上潛在的生命及人類的可持續(xù)性產生巨大影響。

NASA has found evidence of water on Mars in the past. In March, NASA said there was once more water on Mars than in Earth's Arctic Ocean. They say more than four billion years ago, Mars was covered with water 137 meters deep. But nearly all of it has since evaporated into space.

過去，NASA已經發(fā)現了水存在的證據。在三月份，NASA已經表示與北冰洋相比，從前有更多的水在火星上。他們表示，四十億年前，火星被水覆蓋，深度達137米。但幾乎所有的水都蒸發(fā)到太空。

I'm Mario Ritter.

我是馬里奧• 里特。

Jonathan Evans adapted this story from a VOA News report. Kathleen Struck was the editor.

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Words in This Story

hydrated – adj. – relating to something formed when water combines with another substance

implication – n. a possible future effect or result