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SSS 2010-11-18

时间:2010-12-07 06:55来源:互联网 提供网友:seniorboy   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American’s 60-Second Science. I’m Christopher Intagliata. Got a minute?
Astronomers1 have already discovered hundreds of exoplanets. But make way for the new kid, which is orbiting a kind of star that models say it shouldn’t.
Researchers found the exoplanet while looking at the star HIP2 13044—or Sergio, for Star of Extra-Galactic Origin. It’s in what once was a separate galaxy3, which the Milky4 Way gobbled up billions of years ago.
The scientists saw Sergio wobbling due to the gravitational tug5 of a Jupiter-sized gas planet, which the scientists dubbed6 Sergio Junior. They detail their find in the journal Science.
You don’t ordinarily find planets hanging around a star like Sergio. First, it's really old—past the Red Giant phase, when stars balloon in size and swallow up planets in close orbits. And planets tend to form around metal-rich stars, like our Sun. But Sergio has only one percent the metal content of our Sun. That doesn't jibe7 with one widely accepted model of planetary formation.
The Sergios may offer a glimpse of the future of our own planetary system—in about five billion years. We hope to be back then with an update.
Thanks for the minute. For Scientific American’s 60-Second Science, I’m Christopher Intagliata


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1 astronomers 569155f16962e086bd7de77deceefcbd     
n.天文学者,天文学家( astronomer的名词复数 )
参考例句:
  • Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
  • Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪,为什么只有土星有光环。 来自《简明英汉词典》
2 hip 1dOxX     
n.臀部,髋;屋脊
参考例句:
  • The thigh bone is connected to the hip bone.股骨连着髋骨。
  • The new coats blouse gracefully above the hip line.新外套在臀围线上优美地打着褶皱。
3 galaxy OhoxB     
n.星系;银河系;一群(杰出或著名的人物)
参考例句:
  • The earth is one of the planets in the Galaxy.地球是银河系中的星球之一。
  • The company has a galaxy of talent.该公司拥有一批优秀的人才。
4 milky JD0xg     
adj.牛奶的,多奶的;乳白色的
参考例句:
  • Alexander always has milky coffee at lunchtime.亚历山大总是在午餐时喝掺奶的咖啡。
  • I like a hot milky drink at bedtime.我喜欢睡前喝杯热奶饮料。
5 tug 5KBzo     
v.用力拖(或拉);苦干;n.拖;苦干;拖船
参考例句:
  • We need to tug the car round to the front.我们需要把那辆车拉到前面。
  • The tug is towing three barges.那只拖船正拖着三只驳船。
6 dubbed dubbed     
v.给…起绰号( dub的过去式和过去分词 );把…称为;配音;复制
参考例句:
  • Mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
  • Is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的? 来自《简明英汉词典》
7 jibe raBz0     
v.嘲笑,与...一致,使转向;n.嘲笑,嘲弄
参考例句:
  • Perhaps I should withdraw my jibe about hot air.或许我应当收回对热火朝天的嘲笑。
  • What he says does not jibe with what others say.他所说的与其他人说的不一致。
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