www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Moon mission on the horizon

Updated: 2011-12-30 07:14

By Xin Dingding (China Daily)

  Comments() Print Mail Large Medium  Small 分享按鈕 0

Research into rocket for manned lunar landing part of national plan

BEIJING - Preliminary research on a "giant leap" to the moon has been included in the government's plans for the next five years, according to a white paper issued on Thursday.

The white paper, China's Space Activities in 2011, said that research on a heavy-thrust carrier rocket - vital for launching manned spacecraft to the moon - will be carried out in the next five years.

The white paper is the third one issued on space activities by the State Council Information Office. The other two were published in 2000 and 2006.

However, Zhang Wei, spokesman for the China National Space Administration, said that there is no timetable for a manned moon landing.

Experts said that despite China's achievements in manned spaceflight and lunar exploration it needs a different type of technology, especially for the launch, to land a man on the moon.

In the first manned lunar mission in 1969 the United States used a Saturn V launch vehicle, which can send a payload of 120 tons into low Earth orbit, to carry the 50-ton Apollo-11 to the moon, said Pang Zhihao, deputy editor-in-chief of the monthly publication Space International.

"Compared with manned capsules that orbit the Earth, spacecraft built for manned moon landings are much heavier and need to travel over longer distances. Therefore, a powerful launch vehicle is necessary," Pang said.

Currently the largest launcher in China, the Long March-5, is designed to send a maximum payload of 25 tons into near-Earth orbit and a payload of 10 tons into higher geo-stationary orbit. It will be used for transporting large satellites and sections of space stations.

However, it lacks the required thrust for a moon mission.

Enhancing space transport capability is one of China's goals for the next five years, Zhang said.

Scientists are now developing a new series of carriers, including Long March-5 and two other smaller rocket carriers, Long March-6 and 7.

Long March-6 will be a high-speed response launch vehicle. Long March-7 will be capable of carrying a payload of 5.5 tons.

A moon mission is not the only focus, Zhang said.

   Previous Page 1 2 Next Page  

主站蜘蛛池模板: 成年人免费在线视频 | 成年免费在线观看 | 99热在线获取最新地址 | a毛片网站 | 亚洲欧美一区二区三区 | 在线播放一级片 | 一级毛片成人免费看免费不卡 | 亚洲视频在线观 | 又黄又骚| 老司机成人免费精品视频 | 老头老太做爰xxx视频 | 亚洲男同可播放videos | 精品一区二区三区中文字幕 | 熟女毛片 | 精品一区二区三区在线视频观看 | 美女张开腿男人桶 | 国产精品二区三区免费播放心 | 手机午夜看片 | 国产在线观看免费视频软件 | 颜值超高的女神啪啪 | 国产成人精品曰本亚洲78 | fefe66免费毛片你懂的 | 男女视频在线免费观看 | 亚洲免费观看视频 | 久草在线免费福利视频 | 日韩一区二区三区在线免费观看 | 热99re久久精品这里都是免费 | 欧美黄视频在线观看 | 国产免费怡红院视频 | 波多野吉衣 免费一区 | 偷拍小视频99在线 | 国内精品久久久久久久亚洲 | 中文字幕在线一区二区在线 | 久久熟 | 国产成人亚洲日本精品 | 91久久国产 | 国产男女猛烈无遮档免费视频网站 | 亚州一级毛片在线 | 亚洲图片偷拍自拍 | 最新亚洲精品国自产在线 | 国产精品a区 |