男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
  Home>News Center>World
         
 

NASA planning moon launch for 2018
(AP)
Updated: 2005-09-20 06:57

The new exploration plan would allow four astronauts to stay on the moon for a week — twice as long as Apollo missions. It also would haul considerably more cargo, much of which would be left on the moon for future crews. In time, lunar stays of up to six months would be possible.

The capsule would return to Earth by parachute either on land or water — land being preferable, most likely at Edwards Air Force Base in California. And the capsule would be reusable, flying as many as five to 10 times. Apollo capsules were limited to one flight each.

Griffin said NASA did not set out to mimic Apollo with the new spacecraft and that many options were considered.

"By and large, the Apollo folks got it right," Griffin said, noting that other than electronics and computers, the technology hasn't changed significantly.

Northrop Grumman Corp. and Boeing Co., which have teamed up to compete for the crew exploration vehicle contract, favored the capsule design from the start.

"There's been a phrase around the program called 'safe, simple, soon,'" said Doug Young, vice president of space systems for Northrop Grumman. "Going with a proven type of shape, going with something that's easier to develop that doesn't require more complex analysis and development, is going to allow you to get to your destination, your goal sooner at a lower risk."

NASA believes the crew exploration vehicle would be 10 times safer than the space shuttle, in part because of an old-style escape tower that could jettison the capsule away from the rocket in the event of an explosion or fire. The space agency puts the existing failure rate for shuttles at 1-in-220, versus 1-in-2,000 for the new vehicle.


Page: 123



North Korea to drop nuclear weapons development
Clinton Global Initiative Summit
Schwarzenegger seeks re-election in 2006
 
  Today's Top News     Top World News
 

N. Korea agrees to abandon nuclear weapon efforts

 

   
 

PBOC: Economy too much export-driven

 

   
 

UN warned on abuse of intervention right

 

   
 

White House invites China for G-7 talks

 

   
 

China shares rise on restructuring hopes

 

   
 

172 affected in Fujian cholera outbreak

 

   
  US to wait and see on North Korea nuke deal
   
  NASA planning moon launch for 2018
   
  Schroeder seeks coalition pacts with rivals
   
  Officials order lower Fla. Keys evacuated
   
  IAEA chief urges talks on Iran nuke plans
   
  Shiites gather in defiance of inurgents
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  News Talk  
  Are the Republicans exploiting the memory of 9/11?  
Advertisement
         
主站蜘蛛池模板: 布拖县| 视频| 玉环县| 杭州市| 个旧市| 嘉兴市| 旬阳县| 灌云县| 佛山市| 镇坪县| 张家港市| 高要市| 黄大仙区| 林口县| 永吉县| 前郭尔| 罗平县| 淮滨县| 清涧县| 塔河县| 怀化市| 皮山县| 鄂尔多斯市| 浙江省| 西林县| 西宁市| 赤水市| 于都县| 忻城县| 蓬莱市| 桂东县| 昌邑市| 河曲县| 洛南县| 西平县| 丰宁| 孝昌县| 米易县| 崇明县| 桦川县| 垦利县| 石嘴山市| 土默特右旗| 永福县| 千阳县| 焉耆| 镇康县| 龙川县| 吴川市| 鄂托克旗| 朝阳区| 琼海市| 澎湖县| 获嘉县| 洛隆县| 安达市| 高密市| 连平县| 年辖:市辖区| 江华| 长武县| 安新县| 贵州省| 内乡县| 洛阳市| 海城市| 石景山区| 昭平县| 合阳县| 蒙城县| 西乡县| 西城区| 青河县| 吉木乃县| 来宾市| 临泉县| 静宁县| 杨浦区| 恩施市| 建平县| 维西| 平度市|