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Chang'e 3 gathers plenty of data in past 30 months
2016-07-31 16:43:16
CRIENGLISH.com Web Editor: Meng Xue
File photo of China's lunar probe Chang'e 3. [Photo: qq.com]
China's lunar probe Chang'e 3 has been roaming around the moon for the last two and a half years.
Working for 33 lunar nights, it now has the honor of being the probe which has operated the longest on the moon's surface.
It has collected 7 terabytes of data including pictures and videos that have been sent to over 1,000 colleges, universities and scientific institutions on the Chinese mainland, in Hong Kong and Macao.
Chang'e-3, with China's first moon rover aboard, successfully landed on the moon in December 2013, marking China's first successful soft-landing on the surface of an extraterrestrial body.
However its rover Jade Rabbit became faulty and shut down in early 2014. Luckily, it awoke shortly after and has lasted beyond its life expectancy.
The Chang'e 3 mission has provided scientists with an enormous number of images which reveal valuable details about the lunar surface.
It made the first ever geological map of the moon with lunar penetrating radar, providing an insight into the evolution of the moon and the basis to explore its resources.
Lin Yangting, a researcher from the Chinese Academy of Sciences, says the rover even discovered a new type of rock - the Lunar Basalt.
"The radar detected three layers of basalt under the ground. The top layer is 195 meters deep. This indicates that until the late period, about two billion years since it was born, there were still huge amounts of magma that were erupting. This shows that the activity of the magma on the moon lasted longer than expected."
Lin's colleague Wei Jianyan says Chang'e 3 also gathered data which confirmed speculation that there is no water on the moon.
"We measured the amount of water on the lunar surface and above, and found only very small quantities, which is in line with the expectations of the experts on the formation of the moon."
In addition, Chang'e 3's optical telescope made observations of the moon in the ultraviolet range at its north pole to provide information for comparison studies in the future.
Equipped with the world's first extreme ultraviolet imager, Chang'e 3 has been able to study changes in the plasmasphere to monitor solar storms that could disrupt telecommunications on earth.
Liu Tongjie, deputy director of the moon exploration center at the State Administration of Science, Technology and Industry for National Defense, says the success of the Chang'e 3 has guaranteed China a leading role in moon exploration.
"Since the 1990s, the international community has conducted 13 lunar explorations, including five by the United States and four by China. China ranks second in terms of both the frequency of exploration and the scientific achievements. We can say that China has reached the advanced level in some areas of lunar exploration, and this has stimulated the development of moon exploration in the world."
China is planning to send another probe to the moon - the Chang'e 5 robotic lunar sample return mission - which is due to be launched in 2017 from the new Wenchang Satellite Launch Center.
China has more launches coming up in its space missions.
The Tiangong 2 orbiting space lab has been delivered to the Jiuquan Satellite Launch Center where it will liftoff later this year.
It will dock with the crewed Shenzhou 11 spacecraft and a Tianzhou cargo vessel which are slated for launch later.
http://english.cri.cn/12394/2016/07/31/4081s936147.htm
2016-07-31 16:43:16
CRIENGLISH.com Web Editor: Meng Xue
File photo of China's lunar probe Chang'e 3. [Photo: qq.com]
China's lunar probe Chang'e 3 has been roaming around the moon for the last two and a half years.
Working for 33 lunar nights, it now has the honor of being the probe which has operated the longest on the moon's surface.
It has collected 7 terabytes of data including pictures and videos that have been sent to over 1,000 colleges, universities and scientific institutions on the Chinese mainland, in Hong Kong and Macao.
Chang'e-3, with China's first moon rover aboard, successfully landed on the moon in December 2013, marking China's first successful soft-landing on the surface of an extraterrestrial body.
However its rover Jade Rabbit became faulty and shut down in early 2014. Luckily, it awoke shortly after and has lasted beyond its life expectancy.
The Chang'e 3 mission has provided scientists with an enormous number of images which reveal valuable details about the lunar surface.
It made the first ever geological map of the moon with lunar penetrating radar, providing an insight into the evolution of the moon and the basis to explore its resources.
Lin Yangting, a researcher from the Chinese Academy of Sciences, says the rover even discovered a new type of rock - the Lunar Basalt.
"The radar detected three layers of basalt under the ground. The top layer is 195 meters deep. This indicates that until the late period, about two billion years since it was born, there were still huge amounts of magma that were erupting. This shows that the activity of the magma on the moon lasted longer than expected."
Lin's colleague Wei Jianyan says Chang'e 3 also gathered data which confirmed speculation that there is no water on the moon.
"We measured the amount of water on the lunar surface and above, and found only very small quantities, which is in line with the expectations of the experts on the formation of the moon."
In addition, Chang'e 3's optical telescope made observations of the moon in the ultraviolet range at its north pole to provide information for comparison studies in the future.
Equipped with the world's first extreme ultraviolet imager, Chang'e 3 has been able to study changes in the plasmasphere to monitor solar storms that could disrupt telecommunications on earth.
Liu Tongjie, deputy director of the moon exploration center at the State Administration of Science, Technology and Industry for National Defense, says the success of the Chang'e 3 has guaranteed China a leading role in moon exploration.
"Since the 1990s, the international community has conducted 13 lunar explorations, including five by the United States and four by China. China ranks second in terms of both the frequency of exploration and the scientific achievements. We can say that China has reached the advanced level in some areas of lunar exploration, and this has stimulated the development of moon exploration in the world."
China is planning to send another probe to the moon - the Chang'e 5 robotic lunar sample return mission - which is due to be launched in 2017 from the new Wenchang Satellite Launch Center.
China has more launches coming up in its space missions.
The Tiangong 2 orbiting space lab has been delivered to the Jiuquan Satellite Launch Center where it will liftoff later this year.
It will dock with the crewed Shenzhou 11 spacecraft and a Tianzhou cargo vessel which are slated for launch later.
http://english.cri.cn/12394/2016/07/31/4081s936147.htm
