波多野结衣办公室双飞_制服 丝袜 综合 日韩 欧美_网站永久看片免费_欧美一级片在线免费观看_免费视频91蜜桃_精产国品一区二区三区_97超碰免费在线观看_欧美做受喷浆在线观看_国产熟妇搡bbbb搡bbbb_麻豆精品国产传媒

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Flowers on the Moon? China's Chang'e-4 to launch lunar spring

Xinhua | Updated: 2018-04-12 14:03
Share
Share - WeChat

BEIJING - China's Chang'e-4 lunar probe is expected to do many things unprecedented in space history after it launches later this year, such as touching down softly on the far side of the Moon and taking the first flowers to blossom on the lifeless lunar surface.

The probe will carry a tin containing seeds of potato and arabidopsis, a small flowering plant related to cabbage and mustard, and probably some silkworm eggs to conduct the first biological experiment on the Moon.

The "lunar mini biosphere" experiment was designed by 28 Chinese universities, led by southwest China's Chongqing University, a conference on scientific and technological innovation of Chongqing municipality has heard.

LIFE ON THE MOON

The cylindrical tin, made from special aluminum alloy materials, is 18 cm tall, with a diameter of 16 cm, a net volume of 0.8 liters and a weight of 3 kilograms. The tin will also contain water, a nutrient solution, air and equipment such as a small camera and data transmission system.

Researchers hope the seeds will grow to blossom on the Moon, with the process captured on camera and transmitted to Earth.

Although astronauts have cultivated plants on the International Space Station, and rice and arabidopsis were grown on China's Tiangong-2 space lab, those experiments were conducted in low-Earth orbit, at an altitude of about 400 kilometers. The environment on the Moon, 380,000 kilometers from the Earth, is more complicated.

Liu Hanlong, chief director of the experiment and vice president of Chongqing University, said since the Moon has no atmosphere, its temperature ranges from lower than minus 100 degrees centigrade to higher than 100 degrees centigrade.

"We have to keep the temperature in the 'mini biosphere' within a range from 1 degree to 30 degrees, and properly control the humidity and nutrition. We will use a tube to direct the natural light on the surface of Moon into the tin to make the plants grow," said Xie Gengxin, chief designer of the experiment.

"We want to study the respiration of the seeds and the photosynthesis on the Moon," said Liu.

"Why potato and arabidopsis? Because the growth period of arabidopsis is short and convenient to observe. And potato could become a major source of food for future space travelers," said Liu. "Our experiment might help accumulate knowledge for building a lunar base and long-term residence on the Moon."

The public, especially young people, are being encouraged to participate in the Chang'e-4 mission. The China National Space Administration (CNSA) launched a contest among students across China in 2016, collecting ideas on the design of the payloads.

The "lunar mini biosphere" experiment was selected from more than 200 submissions, according to the CNSA.

THE FAR SIDE

Tidal forces of the Earth have slowed the Moon's rotation to the point where the same side always faces the Earth, a phenomenon called tidal locking. The other face, most of which is never visible from the Earth, is the far side of the Moon.

With its special environment and complex geological history, the far side is a hot spot for scientific and space exploration. However, landing and roving there requires a relay satellite to transmit signals.

It has been reported that China plans to send a relay satellite for Chang'e-4 to the halo orbit of the Earth-Moon Lagrange Point L2 in late May or early June 2018, and then launch the Chang'e-4 lunar lander and rover to the Aitken Basin of the south pole region of the Moon about half a year later.

The Von Karman Crater, named after a Hungarian-American mathematician, aerospace engineer and physicist, in the Aitken Basin, was chosen as the landing site for Chang'e-4. The region is believed to have great scientific research potential.

The transmission channel is limited, and the landscape rugged, so the mission will be more complicated than Chang'e-3, China's first soft landing on the Moon in 2013, said Liu Tongjie, deputy director of the Lunar Exploration and Space Program Center of CNSA.

As the relay satellite will be sent to the Earth-Moon Lagrange Point L2 about 450,000 kilometers from the Earth, where a gravitational equilibrium can be maintained, it could stay in stable orbit and operate for a long time.

"We will make efforts to enable the relay satellite to work as long as possible to serve other probes, including those from other countries," said Ye Peijian,a leading Chinese aerospace expert and consultant to China's lunar exploration program.

The Lunar Exploration and Space Program Center of the CNSA has invited the public to write down their hopes for lunar and space exploration, and those hopes and the names of participants will be carried by the relay satellite into deep space. More than 100,000 people have taken part, according to the center.

INTERNATIONAL COOPERATION

As the far side of the Moon is shielded from electromagnetic interference from the Earth, it's an ideal place to study the space environment and solar bursts, and the probe can "listen" to the deeper reaches of the cosmos, said Liu Tongjie.

The Chang'e-4 probe will also carry scientific payloads developed by the Netherlands, Sweden, Germany and Saudi Arabia.

"The Chinese and Dutch low-frequency radio spectrometers might help us detect 21-cm hydrogen line radiation and study how the earliest stars were ignited and how our cosmos emerged from darkness after the Big Bang," said Chen Xuelei, an astronomer with the National Astronomical Observatories of the Chinese Academy of Sciences.

The rover will also carry an advanced small analyzer, developed in Sweden, to study the interaction between solar winds and the Moon surface.

And a neutron dosimeter, developed in Germany, will be installed on the lander to measure radiation at the landing site. Scientists say it is essential to investigate the radiation environment on the lunar surface in preparation for human missions.

Top
BACK TO THE TOP
English
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
 
波多野结衣办公室双飞_制服 丝袜 综合 日韩 欧美_网站永久看片免费_欧美一级片在线免费观看_免费视频91蜜桃_精产国品一区二区三区_97超碰免费在线观看_欧美做受喷浆在线观看_国产熟妇搡bbbb搡bbbb_麻豆精品国产传媒
精品一区二区三区免费视频| 亚洲一区二区三区四区av| 三上悠亚影音先锋| 91精品国产一区二区| 一区二区三区电影在线播| aaa欧美大片| 色香蕉久久蜜桃| 国产精品网站在线观看| 高清视频一区二区| 久久久精品视频免费观看| 国产精品久久99| 波多野结衣亚洲| 一本色道a无线码一区v| 亚洲品质自拍视频网站| 91猫先生在线| 欧美挠脚心视频网站| 性做久久久久久| 一区二区三区少妇| 亚洲精品一区二区三区四区高清| 蜜桃久久久久久| 熟女少妇内射日韩亚洲| 国产午夜亚洲精品不卡| 成人黄色免费短视频| 在线观看视频欧美| 亚洲福中文字幕伊人影院| 日韩精品视频一区二区| 欧美成人r级一区二区三区| 久久精品国产久精国产| 91动漫免费网站| 亚洲色欲色欲www| 麻豆免费在线观看视频| 日韩视频一区二区| 国产一区久久久| 69av视频在线| 亚洲电影一区二区| 国产熟妇久久777777| 国产亚洲精品aa午夜观看| 成人午夜视频网站| 欧美日韩一级大片网址| 免费在线成人网| 国产在线观看免费视频软件| 亚洲天堂免费看| 91视频在线免费| 久久久午夜电影| 91一区在线观看| 日韩一区二区免费在线电影| 国模少妇一区二区三区| 色综合久久久久久久久久久| 亚洲地区一二三色| 日韩不卡av在线| 亚洲另类中文字| 91精品啪在线观看国产| 久久久久久久久久久黄色| 不卡视频在线观看| 日韩一区二区电影在线| 国产91对白在线观看九色| 欧美日韩久久一区二区| 国内精品写真在线观看| 在线欧美日韩精品| 老司机免费视频一区二区三区| 精品一区在线观看视频| 午夜精品免费在线观看| 中文字幕91视频| 亚洲国产精品一区二区尤物区| 国产肥白大熟妇bbbb视频| 日韩理论电影院| 熟女高潮一区二区三区| 亚洲毛片av在线| 日本二区在线观看| 亚洲综合在线观看视频| 国产精品综合激情| 香蕉加勒比综合久久| 国产一二三区精品| 青娱乐精品视频在线| 日日骚一区二区三区| 免费欧美高清视频| 在线观看亚洲a| 国产福利一区在线观看| 69堂精品视频| 成人a级免费电影| 精品99999| xfplay5566色资源网站| 亚洲同性同志一二三专区| 国产传媒国产传媒| 99久久精品免费看国产免费软件| 亚洲卡通欧美制服中文| 亚洲第九十七页| 亚洲品质自拍视频| 国产乱子轮xxx农村| 麻豆专区一区二区三区四区五区| 欧美吻胸吃奶大尺度电影| 国产成人免费视频一区| 欧美成人综合网站| 国产a√精品区二区三区四区| 国产精品久久久久久久午夜片| 中文字幕狠狠干| 亚洲成av人综合在线观看| 色94色欧美sute亚洲13| 国产精品88av| 日本一级大毛片a一| 亚洲欧美精品午睡沙发| 日本少妇aaa| 精品亚洲国产成人av制服丝袜| 91精品国产免费| 午夜诱惑痒痒网| 亚洲精品免费在线播放| 中文字幕电影av| 国产精品一区二区三区乱码| 亚洲精品一区在线观看| 一本色道久久综合亚洲精品图片| 午夜精品一区二区三区免费视频 | 亚洲另类色综合网站| 国产喷水在线观看| 国产一区二区三区高清播放| 久久伊99综合婷婷久久伊| 偷拍女澡堂一区二区三区| 同产精品九九九| 制服视频三区第一页精品| 91传媒理伦片在线观看| 亚洲在线视频免费观看| 欧美色倩网站大全免费| 成人av动漫在线| 亚洲婷婷综合久久一本伊一区| 欧美三级日本三级| 国产电影一区在线| 国产精品无人区| 免费在线观看a级片| 高清国产一区二区| 国产精品视频观看| 中文字幕在线2021| av亚洲精华国产精华| 亚洲欧美电影一区二区| 在线欧美日韩国产| 人妻 丝袜美腿 中文字幕| 天天综合天天综合色| 欧美电影免费观看高清完整版在| 色欲av无码一区二区三区| 老司机精品视频线观看86| 久久综合网色—综合色88| 欧美性受xxxx黑人| 成人综合在线网站| 亚洲视频免费在线观看| 欧美在线一区二区三区| 91在线视频网址| 五月婷婷综合激情| 欧美成人r级一区二区三区| 欧美日韩中文字幕视频| 懂色av一区二区三区蜜臀 | 91蝌蚪porny九色| 亚洲综合一区二区精品导航| 在线不卡免费av| 欧美狂猛xxxxx乱大交3| 国产精品中文有码| 综合中文字幕亚洲| 欧美男生操女生| 精品黑人一区二区三区观看时间| 激情图片小说一区| 国产精品白丝在线| 欧美日韩在线一区二区| 黄色aaa视频| hitomi一区二区三区精品| 夜色激情一区二区| 日韩欧美国产三级电影视频| 91免费在线看片| 日本55丰满熟妇厨房伦| 奇米精品一区二区三区在线观看 | 欧美成人a在线| 日韩精品123区| 不许穿内裤随时挨c调教h苏绵| 日本不卡在线视频| 国产精品理论片在线观看| 欧美精品一二三| 99精品全国免费观看| 91在线视频官网| 另类小说视频一区二区| 国产精品久久久久久久久免费相片| 欧美性色aⅴ视频一区日韩精品| 无码h肉动漫在线观看| 不卡欧美aaaaa| 日本欧美久久久久免费播放网| 国产蜜臀av在线一区二区三区| 欧美日韩在线播放一区| 亚洲一级黄色录像| 白丝校花扒腿让我c| 国内成人精品2018免费看| 亚洲一区二区在线观看视频 | 日韩美女一区二区三区四区| 卡通动漫亚洲综合| www.自拍偷拍| 超级砰砰砰97免费观看最新一期| 久久av老司机精品网站导航| 卡通动漫亚洲综合| 精品人妻一区二区三区视频| 91丨九色丨蝌蚪富婆spa| 精品在线播放午夜| 亚洲国产一区二区视频| 亚洲国产成人午夜在线一区| 欧美一级二级三级蜜桃| 色狠狠桃花综合| 2019男人天堂|