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Lunar Exploration

2013-04-29 01:54:36ByXinHua
CHINAFRICA 2013年11期

By Xin Hua

ChiNEsE scientists gave a sneak peer at plans for the countrys first moon rover on September 25 and invited the global public to come up with a name for it.

Zhao Xiaojin, head of the Aerospace Department of the China Aerospace Science and Technology Corp., depicted the lunar rover as an orbiter adaptable to harsh environments, a highly efficient and integrated robot, and a high altitude “patrolman” carrying the dreams of Asia.

The Change-3 mission to the moon, named after a Chinese lunar goddess, will take place in December, when a Chinese spacecraft will soft-land on a celestial body for the first time.

The rover has two wings, stands on six wheels, weighs 140 kg and will be powered by solar energy.

“When it arrives in lunar orbit on board a lander, the rover will choose the best landing site and gently touch down on the moons surface, using optical and microwave sensors to avoid rocks and craters,” Zhao said.

The rover will select the best route, use minimal fuel and avoid all possible errors during landing, he said.

Li Benzheng, deputy chief designer of Chinas lunar probe program, said the rover will recognize obstacles on the moons surface, and plot a path of least resistance by a combination of onboard navigation systems and remote control from the command center.

The rover can “rest,” automatically entering a dormant state to recharge its batteries, and return to work after a while, Li said.

It can endure a vacuum, intense radiation and extremes of temperature. Temperatures on the moons surface can range from minus 180 to plus 150 degrees Celsius, said Wu Weiren, the programs chief designer.

The rover is equipped with numerous detectors and information gathering systems such as a panoramic camera and radar measurement devices. The rover will patrol the Earths natural satellite for about three months.

The data collected by the rover, such as 3D images, infrared spectrums and lunar soil analysis, will directly and accurately lead to greater understanding of the moon.

Proposed names for the rover can be submitted through the Internet and the official name will be announced in November after an online poll on the selected proposals.

China launched Change-1 in 2007 and Change-2 in 2010. The first probe collected a large body of data and a completed map of the moon. The second mission greatly enhanced the resolution of the previous map and generated a highdefinition image of Sinus Iridium, a plain of basaltic lava, considered by lunar observers to be one of the satellites most beautiful features.

The Change-3 moon probe is part of the second stage of Chinas three-stage lunar mission, orbiting, landing, and analyzing lunar soil and stone samples.

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