日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Innovation

Asteroid mission planned by 2025

By Zhao Lei | China Daily | Updated: 2017-03-04 06:17

China plans to conduct at least one asteroid exploration mission before 2025, a senior space scientist said on Friday.

Ye Peijian, a leading scientist on deep-space exploration at the China Academy of Space Technology and a national political adviser, told China Daily that the asteroid mission will be carried out after the country's first Mars expedition in 2020 and before 2025.

"The detailed schedule and the target asteroid have yet to be determined, but we are working on them. We want to explore asteroids because their resources will be important to mankind's development in the future," he said.

The country has also decided to send a probe to Mars to take samples and return to Earth around 2030, Ye said.

Additionally, Chinese scientists are conducting preliminary research on a Jupiter mission, he said.

In a white paper on China's space activities published in December, the China National Space Administration said that from 2017 to 2021, it would begin a feasibility study and research on key technology for explorations of Jupiter and asteroids. These deep-space expeditions will be used to help explore the origin and evolution of the solar system as well as the possibility of extraterrestrial life, the administration said.

Ji Jianghui, a researcher at the Chinese Academy of Sciences' Purple Mountain Observatory in Nanjing, Jiangsu province, told Xinhua News Agency on Wednesday that Chinese scientists' long-term plans are to fly a probe past an asteroid; to fly side by side with an asteroid for a period; and to land on a third one to conduct sampling analysis on the surface.

By now, only the United States, the European Space Agency and Japan have carried out asteroid exploration missions.

The world's first dedicated asteroid probe was the US Near Earth Asteroid Rendezvous, which was launched in February 1996 and landed on the near-Earth asteroid Eros in February 2001.

In 2006, Japan's Hayabusa became the first spacecraft to land on and return from an asteroid. It brought back a sample of material from the near-Earth asteroid 25143 Itokawa in June that year.

Pang Zhihao, a researcher of human space activity at the China Academy of Space Technology, said expeditions to asteroids will aid scientists' study of the solar system and asteroid resources and help to find methods of preventing asteroids from colliding with Earth.

Yang Yuguang, a member of the International Astronautical Federation's Space Transportation Committee, said an asteroid mission requires precision when the probe flies toward the asteroid.

Contact the writer at @chinadaily.com.cn

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 成人福利在线播放 | 欧美第一页在线 | www色aa色aawww | 韩日在线 | 亚洲欧美国产视频 | 国产成人愉拍精品久久 | 欧美激精品 | 一区二区欧美在线 | 成年人黄色 | 超碰人人艹 | 91福利区 | 三级全黄的视频 | av片国产| 艳女av| 成人午夜视频免费看 | 国产黄频在线观看 | 成人黄色三级视频 | 亚洲伊人影院 | 欧美男人操女人 | 影音先锋国产资源 | 亚洲7777| 理论片午夜 | 亚洲成人免费网站 | 久久亚洲成人 | 亚洲精品一区二区三区区别 | 亚洲第一在线 | 日韩av二区| 伊人久久精品一区二区三区 | 免费观看亚洲 | 成年人免费在线观看视频网站 | xxxx在线视频 | 麻豆chinese新婚xxx | 亚洲精品成人 | 一区二区国产在线 | 成人av免费网站 | 欧美在线影院 | 日韩欧美在线观看一区二区 | 午夜激情网站 | 在线 你懂的 | 日韩中文字幕免费在线观看 | 国产精品久久久久久久久久久久久久久久 |