久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
中國網(wǎng)站品牌欄目(頻道)
當(dāng)前位置: Language Tips > 每日播報

Mars rover to find out if we're alone

[ 2012-08-06 11:07] 來源:中國日報網(wǎng)     字號 [] [] []  
免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

Download

Are we alone? Or was there life on another planet? NASA's $2.5 billion dream machine, the Mars Science Laboratory, aims to take the first steps toward finding out when it nears Mars' surface on Monday.

The planet is Earth's closest neighbor, and scientists have found signs of water there, hinting that some form of life was once likely, even though Mars is now a dry place with a thin atmosphere, extreme winters and dust storms.

NASA said it will find out if its Mars Science Laboratory and rover, Curiosity - designed to hunt for soil-based signatures of life and send back data to prepare for a future human mission - landed safely at 1:31 am local time on Monday.

That will be about 14 minutes after the touchdown actually happens due to the time it takes for spacecraft signals to travel from Mars to Earth.

As of late Saturday, the laboratory was approximately 420,039 kilometers from Mars, closing in at around 13,000 km per hour.

"Curiosity remains in good health with all systems operating as expected," NASA said in a statement.

The US space agency added that catalyst bed heaters were in the process of being turned on to prepare the eight Mars Lander Engines that are part of MSL's descent propulsion system.

The nuclear-powered rover is the biggest ever built for planetary exploration, weighing in at 1 ton, about the size of a small car, and carries a complex chemistry kit to zap rocks, drill soil and test for radiation.

The landing is a daring and unprecedented maneuver that involves penetrating the atmosphere at a speed of 21,240 km per hour, slowing down with the help of a supersonic parachute and dropping down gently with tethers from a rocket-powered sky crane.

"This is the most challenging landing we have ever attempted," said Doug McCuistion, director of NASA's Mars Exploration Program.

Two NASA orbiters will be crossing overhead as the lander approaches the surface, and a third orbiter operated by the European Space Agency will also send data back to Earth.

The Mars Science Laboratory began its journey to the Red Planet more than eight months ago when it launched from the Florida coast in late November 2011.

"It gets scarier every day," said McCuistion, noting that only about 40 percent of past attempts by global space agencies to send spacecraft to Mars have succeeded.

"Can we do this? Yeah, I think we can do this. I am confident the team has done an amazing job. We have the A-plus team on this. They have done everything possible to ensure success," he said.

"But that risk still exists. It is going to be tough."

The landing site for the rover is a flat area known as Gale Crater, which lies near a mountain that scientists hope the rover will be able to climb in the search for sediment layers that could be up to one billion years old.

(中國日報網(wǎng)英語點津 Helen 編輯)

Mars rover to find out if we're alone

About the broadcaster:

Mars rover to find out if we're alone

Rosie Tuck is a copy editor at the China Daily website. She was born in New Zealand and graduated from Auckland University of Technology with a Bachelor of Communications studies majoring in journalism and television. In New Zealand she was working as a junior reporter for the New Zealand state broadcaster TVNZ. She is in Beijing on an Asia New Zealand Foundation grant, working as a journalist in the English news department at the China Daily website.

 
中國日報網(wǎng)英語點津版權(quán)說明:凡注明來源為“中國日報網(wǎng)英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請與010-84883631聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。
 

關(guān)注和訂閱

人氣排行

翻譯服務(wù)

中國日報網(wǎng)翻譯工作室

我們提供:媒體、文化、財經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 国产亚洲精品久久久久久久久激情 | 一区二区三区在线免费观看视频 | 亚洲精品一区二区三区四区手机版 | 精品国产自 | 久久成人免费观看全部免费 | 久久曰视频 | 美女叉开腿让男人捅 | 在线观看精品视频一区二区三区 | 午夜在线亚洲男人午在线 | 国产一级成人毛片 | 国产亚洲男人的天堂在线观看 | 亚洲精品视频在线观看免费 | 精品国语_高清国语自产 | 亚洲大片免费 | 亚洲国产成人久久综合一区77 | 美女张开腿 | 亚洲免费视频一区二区三区 | 欧美一区二区在线观看免费网站 | 久久中文字幕在线观看 | 18性欧美69| 久久男人的天堂色偷偷 | 日韩精品免费一区二区 | www中文字幕在线观看 | 国产一区二区不卡 | 国产精品亚洲欧美日韩区 | 黄色成人毛片 | 日本久久精品 | 一级毛片免费观看不卡视频 | 中国一级做a爱片免费 | 亚洲高清在线观看 | 日韩视频专区 | 国内自拍第100页 | 韩国美女爽快一毛片免费 | 亚洲无卡视频 | 成人怡红院视频在线观看 | 精品综合久久久久久99 | 欧美成网站 | 免费毛片视频网站 | 91国在线视频 | 免费国产成人手机在线观看 | 中文国产成人精品久久一区 |