国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

  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
         
潮州市| 岑巩县| 苏尼特右旗| SHOW| 伊吾县| 紫云| 温宿县| 南木林县| 施秉县| 屏山县| 六盘水市| 兴业县| 新泰市| 霍州市| 靖州| 简阳市| 宁津县| 奈曼旗| 留坝县| 麻城市| 廊坊市| 贞丰县| 绍兴市| 辛集市| 桂平市| 朝阳市| 普定县| 当涂县| 谢通门县| 湖南省| 平安县| 霍邱县| 大姚县| 辽阳市| 阆中市| 屯留县| 廉江市| 屯门区| 宁海县| 彭州市| 沙田区|