45 嗨,雪宝,我飞了65亿公里来看你【精讲版】
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试听18045 嗨,雪宝,我飞了65亿公里来看你【精讲版】

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Icy World 4 Billion Miles Away Looks Like a Snowman in New NASA Images

 

Scientists say with confidence that Ultima Thule long ago was “two completely separate objects that are now joined together.”

 

If it is indeed a pristine planetesimal, a building block of the planets, studying it will offer clues to how Earth and its neighbors formed.

 

On Tuesday, scientists released a blurry picture of this small world, also known by its official designation 2014 MU69, taken before the flyby from a distance of half a million miles. It sort of looked like a fuzzy bowling pin then.

 

It consists of two almost spherical lobes, one with about three times the volume of the other. To tell them apart, they named the larger one Ultima and the smaller one Thule. “Being scientists, we are not all that creative with words,” Dr. Stern said.

 

Such contact binaries appear to be common in the outer solar system, but, Dr. Stern said, “This is the first object that we can clearly tell was born this way.”


 

【参考译文】

 

美国航空航天局最新发布的图片显示,40亿英里外的冰雪世界看起来就像一个雪人

 

科学家们满怀信心地说,在很久以前,天体“天涯海角”还只是“两个完全分开的个体。而如今,它们连在一起了。”

 

如果“天涯海角”确实是一个原始的星子,是行星的组成部分,那么研究它将为了解地球及其临近星球的形成提供线索。

 

该天体也被官方命名为2014 MU69。周二,科学家们发布了一张该天体的模糊照片,这张照片是在对其进行近距离探测之前,在距其50万英里地方拍摄的。该天体看起来有点像一个模糊的保龄球瓶。

 

它由两个几乎是球形的叶瓣组成,其中一个的体积大约是另一个的三倍。为了把它们区分开来,他们把大的叫做Ultima,把小的叫做Thule。斯特恩(Stern)博士说:“作为科学家,我们的语言并不那么有创意。”

 

这样的接触双星在太阳系外似乎很常见,但斯特恩博士说“这是我们能清楚知道的第一个以这种方式诞生的天体

 

 

【课文注释】

 

icy /'aɪsɪ/ adj. 被冰覆盖的

covered in ice

• an icy mountain road 冰封的山路

 

NASA /'næsə/ n. 美国航空航天局

(National Aeronautics and Space Administration) a US government organization that controls space travel and the scientific study of space

 

Ultima Thule 天涯海角

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