3分pk10-(中国)360百科

Chinese scientists say goodbye to Tiangong-2, expecting space station

Source: Xinhua| 2019-07-19 23:22:51|Editor: yan
Video PlayerClose

BEIJING, July 19 (Xinhua) -- After helping scientists complete many significant experiments such as growing rice and vegetables in space, observing the strongest explosions in the universe and setting up the most precise clock in space, China's first space lab Tiangong-2 ended its mission and reentered the atmosphere under control Friday night (Beijing Time).

With deep attachment, Chinese scientists recalled the experience of participating in the design and implementation of the space experiments on Tiangong-2 and also looked forward to more frontier research on China's future space station.

Zheng Huiqiong, a researcher at the Institute of Plant Physiology and Ecology of the Chinese Academy of Sciences (CAS), still remembered how she nervously waited for astronauts in November 2016 to bring back a small box containing the Arabidopsis thaliana, a kind of vegetable, which had grown on Tiangong-2 for about 50 days.

As the lead scientist of the experiment, she was the first one to see the plant with a little blossom.

"That was an unparalleled exciting moment," Zheng said.

Zheng's team put seeds of Arabidopsis thaliana and rice in the space lab to allow them to complete the growth process from seeds to producing seeds in space, the first such experiment carried out by Chinese scientists.

From the small box brought back by astronauts, the team harvested nine seeds, which have generated the fourth generation on Earth.

"The Tiangong-2 mission was our first opportunity to carry out a long-term plant experiment in space. This experiment is significant because growing grains and vegetable will be a necessity if humans want to leave the earth and have long-term survival and travel in space," Zheng said.

Many interesting and important discoveries have been made in the experiments of Tiangong-2.

"We found that plants grow slower in space than on Earth and blossom later. However, they live longer in space than on Earth. The lifespan of Arabidopsis thaliana in space was about twice as long as on Earth. We believe that the genes related to aging change in space," Zheng said.

"If we find the method to regulate the growth of plants, we could postpone the blooming of vegetables to make them grow more leaves and accelerate the blooming of rice to make them seed as soon as possible. Therefore, we can use the limited resources in space to maximize crop yields. The research can also find its application back on Earth," said Zheng.

Yin Dekui, a researcher at the Shanghai Institute of Technical Physics of CAS, recalled that his team had tested the multi-angle wide-band imaging spectrometer on an airplane before the instrument was installed on Tiangong-2. The researchers persisted in the bumpy plane for the experiment while vomiting.

Zhang Yunhua, a researcher at the National Space Science Center of CAS, said Tiangong-2 has provided valuable opportunities for Chinese scientists to test their new technologies and methods. His team developed a three-dimensional microwave altimeter and tested it on Tiangong-2 to improve China's ocean observation capability.

The success of the Tiangong-2 mission has ushered in the era of building China's space station, which is expected to be completed around 2022.

Weighing 66 tonnes, the Tiangong space station will be a T shape with the Tianhe core module at the center and the Wentian and Mengtian lab capsules on each side.

The station, orbiting 340 to 450 kilometers above the Earth's surface, could be enlarged to 180 tonnes if required and accommodate three to six astronauts. It is designed to last at least 10 years, but this could be prolonged through in-orbit maintenance, Zhou Jianping, chief designer of China's manned space program, has said.

Sixteen experiment racks will be installed on the space station to support hundreds of space research projects, according to the Technology and Engineering Center for Space Utilization of CAS.

"The experiments on Tiangong-2 have laid the foundation for further experiments and research on the space station. For instance, we want to study the intrinsic mechanism of prolonged life in space," said Zheng.

"Although Tiangong-2 was successful, we still have many regrets about the experiment. We hope to have the opportunity to do better on the space station," She added.

Tiangong-2 tested the first-ever cold atom clock in space, which was so accurate that it would only lose one second in 30 million years. The development of the clock would have a far-reaching impact on the deep space exploration, basic physical research and precision measurement, according to its developers from the Shanghai Institute of Optics and Fine Mechanics of CAS.

China's space station will carry a hydrogen clock, a cold atomic clock and an optical clock to establish a high-precision time and frequency system. The margin of error of the system would be less than one second every 3 billion years.

Zhang Lixian, a designer of the experiment racks of China's space station, said each rack could be regarded as a lab moved into space and capable of supporting various cutting-edge space experiments.

For instance, one rack is equipped with an automatic mechanical arm with an operational accuracy of better than five microns, which could support experiments at the level of the nucleus, according to Zhang.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011105521382414921
快3彩票购彩平台 大发彩票welcome 彩神 5分pk10 乐彩彩票 快三网站 大众购彩 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 五五世纪 山西快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩中心 乐发ll下载app 彩神Welcome登录入口 乐发 采彡神争霸 快盈iv 神彩v8 55世纪官网 大发彩票www官方 凤凰彩票 10分快三 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 彩神ix 彩票宝 大发彩票app下载 10分快3 快3彩神官方网站 四川快3 乐发彩票购彩平台 乐发彩票ll 大发快乐8官方网站 乐发app下载 welcome凤凰彩票 万乐彩 在线快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 分分快3 大发快乐8 乐发ll welcome购彩中心 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 彩神v8 快三网站 天天彩票 快三平台 1分快三 彩神彩票官方网站 大发三分快3 极速快三 三分PC蛋蛋 彩神购彩中心 乐发lll下载 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 vip彩票购彩大厅 直播快三 彩神彩票 3分快3 快三彩票 大發5分快3 极速快3购彩平台 分分快3 大发快乐8 乐发ll welcome购彩中心 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩中心 乐发ll下载app 彩神Welcome登录入口 乐发 采彡神争霸 快盈iv 神彩v8 55世纪官网 大发彩票www官方 凤凰彩票 10分快三 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 五五世纪 山西快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 彩神ix 彩票宝 大发彩票app下载 10分快3 快3彩神官方网站 四川快3 乐发彩票购彩平台 乐发彩票ll 大发快乐8官方网站 乐发app下载 welcome凤凰彩票 万乐彩 在线快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 彩神v8 快三网站 天天彩票 快三平台 1分快三 彩神彩票官方网站 大发三分快3 极速快三 三分PC蛋蛋 彩神购彩中心 乐发lll下载 彩神welcome 乐发网投平台 网信彩票