科學家對水來自彗星理論表示懷疑
Scientists have cast doubt on a theory that water on
Scientists have cast doubt on a theory that water on earth came from comets after analyzing data from the Rosetta space mission.
在分析羅塞塔探測器發回的數據後,科學家對所謂水來自彗星理論表示懷疑。
The European Space Agency made history by landing a probe on a comet called 67P in November.
歐洲航天局11月向67P彗星歷史性的發射了探測器。
Rebecca Morelle reports.
麗貝卡·莫雷勒報導。
「The Rosetta probe is allowing scientists to look at a comet in unprecedented detail.
「羅塞塔探測器使得科學家能獲得彗星前所未有的詳細信息。
And this is helping them to answer the fundamental scientific question of whether a collision with these icy space rocks brought water to earth billions of years ago.
這就幫助他們回答這樣一個基本的科學問題,即數十億年前冰冷的太空巖石相撞後給地球帶來了水。
The latest data suggest this probably wasn’t the case. Water on our planet has a unique chemical signature, but the water found on Comet 67P doesn’t match.
而最新的數據表明並非如此。地球上的水有著獨特的化學結構,與彗星67P上發現的水並不吻合。
The scientists conclude that something else must have given rise to the earth oceans.
科學家得出的結論是,一定是其他因素令地球海洋水面上升。
They believe the most likely candidates are now asteroids that formed closer to the Sun.」
他們認為最可能的因素是在太陽附近形成的小行星。」
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