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Showing posts with label Moon. Show all posts
Showing posts with label Moon. Show all posts

Monday 2 December 2013

China launches probe and rover to moon

 
The Long March-3B carrier rocket carrying China's Chang'e-3 lunar probe blasts off from the launch pad at Xichang Satellite Launch Center, southwest China's Sichuan Province, Dec. 2, 2013. It will be the first time for China to send a spacecraft to soft land on the surface of an extraterrestrial body, where it will conduct surveys on the moon. (Xinhua/Li Gang)

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 Chang´e lunar probe launch success CCTV News - CNTV English

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China launched the Chang'e-3 lunar probe with the country's first moon rover aboard early on Monday, marking a significant step toward deep space exploration.

The probe's carrier, an enhanced Long March-3B rocket, blasted off from the Xichang Satellite Launch Center in southwest China at 1:30 a.m.

Chang'e-3 is expected to land on the moon in mid-December to become China's first spacecraft to soft land on the surface of an extraterrestrial body.

It is also the first moon lander launched in the 21st century.

The probe entered the earth-moon transfer orbit as scheduled, with a perigee of 200 kilometers and apogee of 380,000 kilometers.

"The probe has already entered the designated orbit," said Zhang Zhenzhong, director of the launch center in Xichang. "I now announce the launch was successful."

"We will strive for our space dream as part of the Chinese dream of national rejuvenation," he said.

Amid efforts to promote lunar probe campaign among the public, the Chinese Academy of Sciences opened a microblog account for the Chang'e-3 mission, attracting more than 260,000 fans who continuously posted congratulatory comments.

The probe's soft-landing is the most difficult task during the mission, said Wu Weiren, the lunar program's chief designer. "This will be a breakthrough for China to realize zero-distance observation and survey on the moon."

More than 80 percent of technologies and products of the mission are newly developed, he said.

The Chang'e-3 will lay a solid foundation for manned lunar orbit mission and manned lunar landing. China has not revealed the roadmap for its manned mission to land on the moon.

So far, only the United States and the former Soviet Union have soft landed on the moon.

Chang'e-3, comprising a lander and a moon rover called "Yutu" (Jade Rabbit), presents a modern scientific version of an ancient Chinese myth that a lady called Chang'e, after swallowing magic pills, took her pet "Yutu" to fly toward the moon, where she became a goddess, and has been living there with the white rabbit ever since.

Tasks for the moon rover include surveying the moon's geological structure and surface substances, while looking for natural resources.

A telescope will be set up on the moon, for the first time in human history, to observe the plasmasphere over the Earth and survey the moon surface through radar.

The lunar probe mission is of great scientific and economic significance, said Sun Zezhou, chief designer of the lunar probe.

The mission has contributed to the development of a number of space technologies and some of them can be applied in civilian sector, he said.

Chang'e-3 is part of the second phase of China's lunar program, which includes orbiting, landing and returning to the Earth. It follows the success of the Chang'e-1 and Chang'e-2 missions in 2007 and 2010.

After orbiting for 494 days and intentionally crashing onto the lunar surface, Chang'e-1 sent back 1.37 terabytes of data, producing China's first complete moon picture.

Launched on Oct. 1, 2010, Chang'e-2 verified some crucial technologies for Chang'e-3 and reconnoitered the landing area. It also made the world's first lunar holographic image with a resolution of 7 meters.

Currently, Chang'e-2 is more than 60 million km away from the Earth and has become China's first man-made asteroid. It is heading for deep space and is expected to travel as far as 300 million km from the Earth, the longest voyage of any Chinese spacecraft.

China is likely to realize the third step of its lunar program in 2017, which is to land a lunar probe on moon, release a moon rover and return the probe to the Earth.

The moon is considered the first step to explore a further extraterrestrial body, such as the Mars.

If successful, the Chang'e-3 mission will mean China has the ability of in-situ exploration on an extraterrestrial body, said Sun Huixian, deputy engineer-in-chief in charge of the second phase of China's lunar program.

"China's space exploration will not stop at the moon," he said. "Our target is deep space."

China sent its first astronaut into space in 2003, becoming the third country after Russia and the United States to achieve independent manned space travel.

Despite fast progress of the lunar mission, China is still a newcomer in this field.

The former Soviet Union first landed its probe on the moon on Jan. 31, 1966, while the United States first sent human beings to the moon in 1969.

About a day before the launch of Chang'e-3, India's maiden Mars orbiter, named Mangalyaan, left the Earth early on Sunday for a 300-day journey to the Red Planet.

Chinese space scientists are looking forward to cooperation with other countries, including the country's close neighbor India.

Li Benzheng, deputy commander-in-chief of China's lunar program, told media earlier that China's space exploration does not aim at competition.

"We are open in our lunar program, and cooperation from other countries is welcome," he said. "We hope to explore and use space for more resources to promote human development." - Xinhua


Related post:
China will tonight launch a lunar probe to attempt ‘soft landing’

Sunday 1 December 2013

China will tonight launch a lunar probe to attempt ‘soft landing’


Chang´e-3 to send back new data for analysis CCTV News - CNTV English

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China will on Sunday night launch a lunar probe that will attempt to carry out the first “soft landing” on the Moon in almost four decades, underlining the rapidly growing capabilities of the country’s ambitious space programme.

The Chang’e-3 lunar probe, which will be launched from the Xichang centre in western China at 11 pm IST on Sunday night (1.30 am Monday morning local time), will carry a Moon rover that will survey the lunar surface and explore for natural resources.

Chinese officials have highlighted the launch as the most difficult objective yet of the space programme, as it involves carrying out the first “soft landing” on the Moon since the Soviet Union landed a probe in 1976.

Cen Zheng, the rocket system commander-in-chief of the mission, said on Saturday engineers had adopted new “technologies of high-precision guidance and control” and a first-of-its-kind transmission system for remote sensing.

The Chang’e-3 mission, if successful, will land on the moon in mid-December, following which the Jade Rabbit rover — or Yutu in Chinese, named after a popular Chinese mythological story about a rabbit that lives on the Moon — will spend three months exploring the surface.

Only the U.S. and the erstwhile Soviet Union have carried out soft landings, and no country has done so since 1976.

Officials said the Chang’e-3 probe is far more advanced than the Soviet mission as it is equipped with high-precision sensors to survey landforms at the landing sites and choose the best spot to land.

The mission marks another landmark for the ambitious Chinese space programme, which, earlier this year, launched the country’s fifth manned mission. 

China last year also achieved its first docking exercise in space with an orbiting laboratory module — a significant step in its plan to put into orbit its own space station by 2020.

Wu Zhijian, a spokesperson for the space programme, earlier this week described the lunar probe as “the most complicated and difficult task in China’s space exploration” history. The first Chang’e probe, in 2007, mapped the surface of the Moon and after a 16-month mission crash landed on the surface.

India and the European Space Agency have carried out similar “hard landings”. The unmanned Chandrayaan-1 was India’s first unmanned lunar probe. 

Announcing the launch earlier this week, officials were eager to downplay suggestions of a “space race” with India, with international attention on both countries’ programmes following India’s Mars probe launch.

Chinese State media devoted wide attention to the Mars probe, with the Global Times, a nationalist tabloid published by the People’s Daily, calling on China to double its efforts “in front of an India that is striving to catch up”.

Li Benzheng, the deputy commander-in-chief of the lunar programme, said China was “never in competition” with India or any country, and congratulated India on the Mars probe, which he described as “a great accomplishment”.




China to launch Chang'e-3 lunar probe

China will launch the Chang'e-3 lunar probe to the moon at 1:30 am Monday from Xichang Satellite Launch Center, the mission's launching headquarters said Saturday.

It will be the first time for China to send a spacecraft to soft land on the surface of an extraterrestrial body, where it will conduct surveys on the moon.

Facilities at the launching site are in good condition and preparations are going well, according to the headquarters.

The probe will be launched to orbit aboard an enhanced Long March-3B carrier which is more than three meters in diameter and 56.4 meters high.

The mission will be the 25th launch of the Long March-3B, which is the most powerful launch vehicle in the Long March fleet.

Engineers have adopted technologies of high-precision guidance and control, multiple narrow window launches, transmission system for remote sensing, and reduction of the rocket's deadweight, said Cen Zheng, rocket system commander-in-chief of the mission.

Chang'e-3 comprises a lander and a moon rover called "Yutu" (Jade Rabbit). The lunar probe will land on the moon in mid-December if everything goes according to plan.

Tasks for Yutu include surveying the moon's geological structure and surface substances, while looking for natural resources.

So far, only the United States and the former Soviet Union have soft-landed on the moon.

After entering lunar orbit, Chang'e-3 will go through six stages of deceleration to descend from 15 km above to the lunar surface.

The soft-landing processes of the US and former Soviet Union's unmanned spacecraft had no capacity to hover or avoid obstacles. Chang'e-3, on the other hand, can accurately survey landforms at the landing site and identify the safest spots on which to land.

In order to land quickly, the probe is equipped with high-precision, fast-response sensors to analyze its motion and surroundings. The variable thrust engine (completely designed and made by Chinese scientists) can generate up to 7,500 newtons of thrust. - Xinhua

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