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China's Chang & # 39; 4 Land and Yutu 2 rover, photographing each other on the Moon.
Credit: CNSA / CLEP
China's Chang & # 39; e 4 land and rover now becomes cold impregnated as the darkness falls on their lower end of the moon
On the night of January 2, the Chang 4 mission quietly touched the 115-mile (186 km) crater of Von Kármán, located in the vast Southern Polish Aitken basin in the southern hemisphere.
Chang & # 39; e 4 is now experiencing its first long moon night, which fell to Von Karman this weekend. The lunar day is equal to 14 days on Earth, and the moon's night is the same length. [Photos from the Moon’s Far Side! China’s Chang’e 4 Lunar Landing in Pictures]
Sleep Mode
The Chinese-led Xinhua News Agency reported that Chang & # 39; e 4 is equipped to assess the high temperature fluctuations of the mood moon.
"Without our own data on the Moon's temperature, we don't know how cold the Moon's Night can be," Zhang He, Chief Executive Officer of Chang's 4th Probe Project from the Chinese Space Technology Academy (CAST), told Xinhua.
Tan Mei, Chang's 4 consultant from CAST, said that due to lack of solar power, the unloading mode goes to sleep mode due to lack of solar energy and relies on a radioisotope source of heat to maintain heat. This power source is the result of collaboration between Chinese and Russian scientists.
"We need to transform the heat into energy to control the thermometry to measure the surface temperature of the moon at night," Tanin said.
Data collectors
The landlord is equipped with dozens of temperature collectors, and the data they collect at night will be broadcast after the probe wakes up during the moon's day, said Li Fei, a CAST landmark designer.
As reported by Xinhua, Sun Zezhou, Chang & # 39; s 4-core probe designer from CAST, said the probe will gain first-hand data directly by measuring the moon's soil temperature, the probe surface and its main internal equipment for the Moon's Night.
For the first time, the technology of the thermoelectric generation of the isotope used in the Chinese spacecraft is a prototype of future deep space exploration missions.
In 2013, China launched Chang & # 39; 3, the country's first spacecraft to soften the moon on the moon. (It touched the nearest party; Chang & # 39; e 4 is the first ship ever to land far away.) Scientific instruments on unloading still work for over 60 moon nights over the last five years.
Relay site
In May last year, China sent the relay satellite Queqiao (meaning "Magpie Bridge") to the halo orbit around the second Lagrangian point of the Earth-Moon system to establish a link between the Earth and the Moon. farce. It is the first satellite to operate in this orbit.
According to Xinhua, Chinese space experts are hoping that Queqiao will be able to help other countries planning to send probes to the furthest side of the moon during the lifetime of the spacecraft.
The Chinese moon exploration will continue with Chang & # 39; e 5, which is supposed to return moon samples to Earth. China wants to start Chang 5 this year.
You can learn more about Chang & # 39; s 4 mission and awareness of other countries in this new Chinese TV video, released on January 13th.
Leonard David is the author of the upcoming book "Moon Rush: The New Space Race" which will be published by National Geographic in May 2019. t For a long time, writer SPACE.com, David has reported on the space industry for over fifty years. follow us @Spacedotcom or Facebook. The version of this story is published on Space.com.
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