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MOON DAILY
China's moon rover "sleeps" through lunar night
by Staff Writers
Beijing (XNA) Dec 26, 2013


Yutu deployed as seen in a panorama taken by the lander.

The moon rover and lander of China's Chang'e 3 lunar probe mission will "sleep" during the lunar night, enduring extreme low temperatures on the lunar surface.

According to Wu Fenglei of the Beijing Aerospace Control Center, the lander will "go to sleep" at about 7 a.m. on Christmas Day and the moon rover, Jade Rabbit, will fall asleep at about 1 a.m. on Boxing Day.

The forthcoming lunar night, expected to begin on Dec. 26, will last for about two weeks, experts with the center estimated. During their "sleep", both lander and rover will have to tolerate minus 180 degrees Celsius. Scientists tested the lander early Tuesday to ensure it can stand the temperature drop.

Both lander and rover are stable, said Wu, adding they have completed a series of scientific tasks in the past two days.

Chang'e-3 soft-landed on the moon's Sinus Iridum, or the Bay of Rainbows, on Dec. 14, establishing China as the third country to carry out such a mission after the United States and Soviet Union.

Yutu, the rover, will survey the moon's geological structure and surface substances and look for natural resources for three months, while the lander will conduct in-situ exploration at the landing site for one year.

China's moon rover flexes muscles
China's moon rover, Yutu (Jade Rabbit), completed an arm flexing assessment early on Monday, a key test before beginning other work on the surface, according to the Beijing Aerospace Control Center.

The trial checked the rover is in the best condition to endure extreme temperatures of minus 180 degrees Celsius in the first moonlight night, said Zhou Jianliang, chief engineer with the center.

Experts from the center estimated that the night is expected to appear on Dec. 26 and will last for about 15 days, during which the rover will "go to sleep" without any energy supply.

The trial will help the rover continue explorations after the night, Zhou added.

Yutu has had to deal with direct solar radiation raising the temperature to over 100 degrees centigrade on its sunny side, while its shaded side simultaneously fell below zero.

Chang'e-3 soft-landed on the moon's Sinus Iridum, or the Bay of Rainbows, on Dec. 14, establishing China as the third country in the world capable of carrying out such a rover mission after the United States and former Soviet Union.

Yutu will survey the moon's geological structure and surface substances and look for natural resources for three months, while the lander will conduct in-situ exploration at the landing site for one year.

Source: Xinhua News Agency

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