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

   

China to launch lunar probe this year

(Xinhua)
Updated: 2007-05-21 06:35

Beijing- China was "losing no time" in preparing its first lunar orbiter, Chang'e I, which will most likely be launched in the second half of 2007, a space official said here on Sunday.

"The moon probe project is the third milestone in China's space technology after satellite and manned spacecraft projects, and a first step for us in exploring deep space," said Sun Laiyan, chief of the China National Space Administration.

Sun, also vice director of the Commission of Science Technology and Industry for National Defence, made the remarks when briefing students at Beijing Jiaotong University on China's space program.

China's moon exploration program is divided into three phases -- "circling the moon", "landing on the moon" and "back to earth", said Sun.


This image released by NASA in 2003 shows a partial moon that was photographed by an Expedition 7 crewmember from the International Space Station. China aims to launch its first lunar orbiter later this year, part of a three-step plan it hopes will eventually see moon samples brought back to Earth.[AFP]
The launch of the orbiter is the first phase of China's moon exploration program, and the second phase will involve the launching of a moon rover, he said. Earlier reports said the moon rover will be launched around 2012.

In the third phase, another rover will land on the moon and return to earth with lunar soil and stone samples, Sun said.

"Space activities combine advanced technology, heavy investment, big profits and high risks," Sun said, adding that only 48 percent of the world's lunar probing projects had succeeded.

"However, the returns (of space activities) are huge, in terms of politics, economy, military and convenience brought to everyday life," he said. "For one dollar invested in space science, you can expect direct and indirect returns of at least seven dollars."
In addition to moon exploration, Sun said China will continue the research on manned space missions, including a space walk and experiments to link passing spacecraft.

China carried out its maiden piloted space flight in October 2003, making the country the third in the world following the former Soviet Union and the United States to have put men into space. In October 2005, China sent its second manned spacecraft into space, with two astronauts on board.

China will also build 12 "Compass" satellites, rendered as "Beidou" in Chinese, part of a space navigation and positioning system that can provide service to China and its neighboring countries. It will expand into a global positioning system with 30 satellites in the future, Sun said.

China is one of the few countries that are capable of developing navigation satellite system on its own. Previous reports said it will provide clients with positioning accuracy within 10 meters, velocity accuracy with 0.2 meter per second and timing accuracy within 50 nanoseconds.

Five "Compass" satellites have been launched since 2000. The latest entered the orbit in last month.

Sun said every small move in the space is of strategic importance and affects state security.

"Space technology reflects a nation's overall power and is an important facet of the modernization of national defense," he said.

However, he reiterated the country's stance on peaceful use of the space. "China's space mission is to benefit the entire human race by peacefully using the outer space," he said.


Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
浮山县| 江永县| 讷河市| 松原市| 石楼县| 井陉县| 苍溪县| 土默特右旗| 海盐县| 乡城县| 乌兰察布市| 疏勒县| 邹城市| 苗栗县| 定南县| 礼泉县| 青浦区| 扶风县| 绥化市| 万源市| 辽源市| 信宜市| 屏东市| 阿拉善右旗| 景洪市| 深水埗区| 淄博市| 彰化市| 杭锦后旗| 通山县| 昆明市| 商洛市| 股票| 岱山县| 阳西县| 独山县| 安塞县| 吉木萨尔县| 洪洞县| 开原市| 镇赉县|