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科学美国人60秒 SSS "机遇号"火星探测器任务结束

时间:2019-12-10 07:44:56

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(单词翻译)

 

This is Scientific American — 60-Second Science. I'm Steve Mirsky.

"You know, when this little rover landed, the objective was to have it b?e able to move 1,100 yards and survive for 90 days on Mars."

NASA Administrator1 Jim Bridenstine.

"And instead here we are 14 years later, after 28 miles of travel. And today we get to celebrate the end of this mission."

Bridenstine spoke2 at a press conference at NASA's Jet Propulsion Laboratory today, February 13, 2019. The media event was called to officially mark Opportunity's demise3. The rover has been quiet since last June, when a severe dust storm covered its solar panels. Only about one fortieth of the typical amount of solar radiation was getting through to power the rover. And it's been silent since.

"Opportunity i?s very close to the equator, so there's lots of solar power."

Cornell University astronomer4 Steven Squyres talking to Scientific American back in March, 2006. He was the principal investigator5 for the science payload of the Mars Exploration Rover Project, better known as the two rovers Spirit and Opportunity. They landed on Mars three weeks apart in January 2004.

The Spirit rover, much further from the equator, stopped reporting back to NASA in 2010. But Opportunity, like an interplanetary Energizer6 Bunny, just kept going. Along the way it found ample evidence for the presence of water during Martian history.

Back in 2006 Squyres offered this confident and, we now know, correct assessment7: "I think Opportunity could last for quite a long time."

For Scientific American — 60-Second Science. I'm Steve Mirsky.


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1 administrator SJeyZ     
n.经营管理者,行政官员
参考例句:
  • The role of administrator absorbed much of Ben's energy.行政职务耗掉本很多精力。
  • He has proved himself capable as administrator.他表现出管理才能。
2 spoke XryyC     
n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
参考例句:
  • They sourced the spoke nuts from our company.他们的轮辐螺帽是从我们公司获得的。
  • The spokes of a wheel are the bars that connect the outer ring to the centre.辐条是轮子上连接外圈与中心的条棒。
3 demise Cmazg     
n.死亡;v.让渡,遗赠,转让
参考例句:
  • He praised the union's aims but predicted its early demise.他赞扬协会的目标,但预期这一协会很快会消亡。
  • The war brought about the industry's sudden demise.战争道致这个行业就这么突然垮了。
4 astronomer DOEyh     
n.天文学家
参考例句:
  • A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意。
  • He is reputed to have been a good astronomer.他以一个优秀的天文学者闻名于世。
5 investigator zRQzo     
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 energizer 08b688fc3bdb66cc4c4b47a08fa34a4d     
n.抗抑制剂,情绪兴奋剂;增能器
参考例句:
  • He thunk highly of QI of the spleen and stomach in middle energizer. 朱丹溪吸收了李东垣《脾胃论》的思想,临证用药重视中焦脾胃之气。 来自互联网
7 assessment vO7yu     
n.评价;评估;对财产的估价,被估定的金额
参考例句:
  • This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
  • What is your assessment of the situation?你对时局的看法如何?

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