美国国家公共电台 NPR NASA Probe Takes First-Ever Close-Up Images Of Jupiter's North Pole

NASA Probe Takes First-Ever Close-Up Images Of Jupiter's North Pole 

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Today, NASA released the first close-up pictures ever taken of Jupiter's north pole. The space agency also released a striking image of a colorful display near the planet's south pole. They were taken by the Juno spacecraft, now in orbit around the gas giant. NPR's Joe Palca has more.

JOE PALCA, BYLINE²: The north pole looks totally different from the rest of the planet. It's bluer in color. You can see a lot of storms. And it's missing the bands of clouds you can see it lower latitudes³. Jack⁴ Connerney of NASA's Goddard Space Flight Center is an investigator⁵ on the Juno mission.

JACK CONNERNEY: It looks a little squirrelly up there, to be honest with you. That's the best way I could describe it.

PALCA: Juno took the picture of Jupiter's north pole last Saturday when the spacecraft was 48,000 miles above the cloud tops. NASA also released an infrared⁶ image of Jupiter's southern aurora⁷. The aurora occurs when energized⁸ particles from the sun interact with Jupiter's atmosphere near the planet's poles. In case you're interested, this is what an aurora sounds like if you convert it to a frequency the human ear can hear.

(SOUNDBITE OF AURORA)

PALCA: Juno went into orbit around Jupiter on July 4. But it was an unusual orbit. Not only did it fly over the poles, it also only flies close to the planet for a few hours at a time, spending the vast majority of each orbit flying far away from Jupiter. The reason for that odd orbit is the harsh radiation environment near the planet that would fry the spacecraft's electronics if it hung around too long. But it's the close-up time where Juno can get the most detailed⁹ picture of Jupiter - what it's magnetic and gravitational fields are like, whether it has a solid core and how much water there might be hiding beneath the cloud tops.

Juno is supposed to make 35 more close flybys before the mission ends in 2018. Joe Palca, NPR News.

1 browser   

n.浏览者

参考例句：

• View edits in a web browser.在浏览器中看编辑的效果。
• I think my browser has a list of shareware links.我想在浏览器中会有一系列的共享软件链接。

2 byline   

n.署名；v.署名

参考例句：

• His byline was absent as well.他的署名也不见了。
• We wish to thank the author of this article which carries no byline.我们要感谢这篇文章的那位没有署名的作者。

3 latitudes   

纬度

参考例句：

• Latitudes are the lines that go from east to west. 纬线是从东到西的线。
• It was the brief Indian Summer of the high latitudes. 这是高纬度地方的那种短暂的晚秋。

4 jack   

n.插座，千斤顶，男人；v.抬起，提醒，扛举；n.（Jake）杰克

参考例句：

• I am looking for the headphone jack.我正在找寻头戴式耳机插孔。
• He lifted the car with a jack to change the flat tyre.他用千斤顶把车顶起来换下瘪轮胎。

5 investigator   

n.研究者，调查者，审查者

参考例句：

• He was a special investigator for the FBI.他是联邦调查局的特别调查员。
• The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。

6 infrared   

adj./n.红外线(的)

参考例句：

• Infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
• Infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。

7 aurora   

n.极光

参考例句：

• The aurora is one of nature's most awesome spectacles.极光是自然界最可畏的奇观之一。
• Over the polar regions we should see aurora.在极地高空,我们会看到极光。

8 energized   

v.给予…精力，能量( energize的过去式和过去分词 )；使通电

参考例句：

• We are energized by love if we put our energy into loving. 如果我们付出能量去表现爱意，爱就会使我们充满活力。 来自辞典例句
• I am completely energized and feeling terrific. 我充满了活力，感觉非常好。 来自辞典例句

9 detailed   

adj.详细的，详尽的，极注意细节的，完全的

参考例句：

• He had made a detailed study of the terrain.他对地形作了缜密的研究。
• A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。