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A tiny, ice-encrusted ocean world orbiting Saturn is now a hotter than ever candidate for potential life, as NASA says it has almost all conditions to harbor life.
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Scientists announced on Thursday that NASA's Cassini spacecraft detected the presence of molecular hydrogen in water plumes erupting from Saturn's moon, Enceladus.

The hydrogen was detected during Cassini's deep dive close to the surface of the moon in October 2015. The spacecraft determined that the plumes are 98 percent water and one percent hydrogen, with traces of ammonia, carbon dioxide, and methane.

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重点单词   查看全部解释    
hydrogen ['haidridʒən]

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n. 氢

 
determined [di'tə:mind]

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adj. 坚毅的,下定决心的

 
presence ['prezns]

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n. 出席,到场,存在
n. 仪态,风度

 
spacecraft ['speiskrɑ:ft]

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n. 宇宙飞船

 
harbor ['hɑ:bə]

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n. 海港,避难所
vt. 庇护,心怀,窝藏<

 
candidate ['kændidit]

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n. 候选人,求职者

联想记忆
potential [pə'tenʃəl]

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adj. 可能的,潜在的
n. 潜力,潜能

 
announced [ə'naunst]

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宣布的

 


关键字: World News 土卫二

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