综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

   

CHINA / National

China plans 'KuaFu Mission' for Sun probe
(Xinhua)
Updated: 2006-07-20 10:52

As China steps up its lunar exploration, some scientists in the country are planning another space project, the "KuaFu Mission", aiming to study the activities of the Sun.

At the ongoing 36th Committee on Space Research Scientific Assembly, Tu Chuanyi, a member of the Chinese Academy of Sciences, said the project, expected to be launched in 2012, will study the complex Sun-Earth system and improve the space weather forecast.

The mission will raise the standard of end-to-end observation of the Sun-Earth system, and advance scientists' understanding of the basic physical processes underlying space weather, said Tu, who is also a professor with the Beijing University.

Tu said the mission is designed to observe the complete chain of disturbances from the solar atmosphere to geospace, including solar flares, coronal mass ejections (CMEs), interplanetary clouds, shock waves, and their geo-effects, such as magnetic storms and auroral activities.

The name of the mission comes from an ancient Chinese legend of KuaFu, who tried to catch the Sun and enter it.

"The KuaFu mission may start at the next solar maximum, the year of 2012, hopefully, and with an initial mission lifetime of two to three years," Tu said.

He said the mission is composed of three satellites: KuaFu-A and KuaFu B1 and B2. KuaFu-A will be located at the Lagrangian point L1, the point stable with respect to gravitational forces between the Sun and the Earth, and have solar instruments to continuously observe the solar activities.

KuaFu B1 and B2 will be in polar Earth orbits that enable continuous observations of the aurora in northern hemisphere, which shows the influence of the Sun activities to the Earth, said the scientist.

The KuaFu mission is now at the comprehensive review stage, said Tu, adding that this study will be concentrated on a further review of the mission objectives and a further decision of the scientific payload.

At the same time, the Chinese space industry will conduct preliminary engineering studies on various technical elements, including satellite platform, launch strategy, tracking and control as well as data transmission system.

A dozen of leading scientists from Germany, France, Belgium, Austria, Canada and other countries are expected to participate in the project.

William Liu, chief scientist of space physics and atmosphere science with the Canadian Space Agency, told Xinhua that the KuaFu mission is of great scientific significance and would reach the world leading level in this field.

If the mission is launched as expected, it will be the world's first space project systematically probing the Sun-Earth environment, he said.

Violent solar activities may cause malfunction of satellites, disturbance to the communication facilities on the Earth, and bring danger to the life safety of astronauts, Liu said.

The KuaFu mission may help predict solar activities and enable human to take measures to prevent damage caused by the solar activities, Liu said.

However, Liu said China still faces many technological problems to implement the KuaFu project.

 
 

Related Stories
 
唐山市| 繁昌县| 鄂尔多斯市| 盘山县| 子洲县| 西吉县| 淅川县| 苏尼特左旗| 东明县| 红原县| 怀柔区| 阳信县| 汪清县| 肃北| 汪清县| 五家渠市| 登封市| 涡阳县| 平乡县| 徐州市| 贺兰县| 永善县| 会同县| 宁阳县| 武宁县| 和政县| 米泉市| 攀枝花市| 江华| 扎赉特旗| 万载县| 进贤县| 岱山县| 新龙县| 望江县| 睢宁县| 昌图县| 曲靖市| 营山县| 涟源市| 遂溪县|