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BEIJING, Nov. 3 (Xinhua) -- Two Chinese spacecraft accomplished the country's first space docking procedure early Thursday, silently coupling in space more than 343 km above Earth's surface.Nearly two days after it was launched, the unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 at 1:36 a.m., marking another great leap for China's space program.The success of the docking procedure makes China the third country in the world, after the United States and Russia, to master the technique, moving the country one step closer to establishing its own space station.A video grab taken from the China Central Television on Nov.3, 2011 shows the Shenzhou-8 spacecraft docking with the Tiangong-1 space lab module. Unmanned spacecraft Shenzhou-8 docked with space lab module Tiangong-1 early Thursday, according to the Beijing Aerospace Control Center.President Hu Jintao, who is in France for the G-20 summit, sent a congratulatory message on the success of the country's first-ever space docking."Breakthroughs in and acquisition of space docking technologies are vital to the three-phase development strategy of our manned space program," Hu said in the message.Hu said he wishes all the program participants to try all out to fulfill a complete success of the whole mission after the smooth docking.Other leaders, including Wu Bangguo, Wen Jiabao, Li Changchun, Xi Jinping, Li Keqiang, He Guoqiang and Zhou Yongkang, who are Standing Committee members of the Political Bureau of the Communist Party of China Central Committee, watched the mission at the Beijing Aerospace Flight Control Center.China is now equipped with the basic technology and capacity required for the construction of a space station, said Zhou Jianping, chief designer of China's manned space program."This will make it possible for China to carry out space exploration on a larger scale," he said."The capability increases China's ability to act independently in space, as well as its ability to cooperate with others," said Gregory Kulacki, senior analyst and China project manager at the global security program of the Union of Concerned Scientists, a nonprofit scientific advocacy group based in the United States."China's pursuit of an original solution to space docking, that is based on their understanding of the experience of other nations, could lead to innovations or experiences other space-faring nations could find useful," Kulacki said.The world's first space docking was achieved in 1966, when the manned U.S. spacecraft Gemini 8 docked with an unmanned Agena Target Vehicle.Forty-five years later, the maneuver remains a technological challenge. Many of mankind's 300-plus attempts have been met with difficulties or resulted in failure."To link up two vehicles traveling at 7.8 km per second in orbit, with a margin of error of no more than 20 centimeters, is like 'finding a needle in a haystack'," Zhou said.The Shenzhou-8 and Tiangong-1 will separate after flying together for 12 days. After that a second docking procedure will be conducted.Rendezvous and docking, essential to exploring space beyond Earth's orbit, create the possibility of building space stations, resupplying them, transferring astronauts and rescuing them.Without this key know-how, exploration of the moon and beyond requires carrier rockets with significant amounts of thrust. China does not currently possess rockets of this magnitude.Shenzhou-8 and Tiangong-1 both weigh about 8 metric tons, well within the delivery capacity of the Long March 2F rocket. A permanent orbiting space station is designed to be as heavy as 60 metric tons, with docking ports accommodating both manned and freight space vehicles.The interior of both the Shenzhou-8 and Tiangong-1 is an actual environment in which astronauts can live and work. After the Shenzhou-8 tests, the Tiangong-1 will remain a target orbiter for more docking procedures in 2012 by the Shenzhou-9 and -10 spacecraft, at least one of which will be manned to conduct manual docking.Although the Shenzhou-8 is unmanned, it is equipped with devices to record images and data that will help China make improvements to its spacecraft design and astronaut training.Two female astronauts are now believed to be on the active duty roster for future Shenzhou missions, said Chen Shanguang, director of the Astronaut Center of China (ACC)."We must assess both male and female astronauts to verify if human beings can live in space, as there are huge differences between men and women in spite of their common generalities," Chen said."Space exploration activities would be incomplete without the participation of female astronauts," Chen said.The Chinese spacecraft also feature collaborative space experiments under the framework of a Chinese-German science and technology cooperation.German scientists designed bio-incubators for the experiments, while their Chinese counterparts were in charge of the development of control equipment, China's manned space program spokeswoman Wu Ping said.

BEIJING, Oct. 20 (Xinhuanet) -- A Teenager's intelligence is not fixed as usually thought. Instead, it can go through swings in a few years, according to a British study reported online in Nature.Teenagers' IQ can rise or fall 20 points over time, researchers from Wellcome Trust Centre for Neuroimaging of Kings College, showed in their study.IQ (short for "intelligent quotient") is an gauge of mental capability measured through a series of standardized tests of language skill, spatial ability, arithmetic, memory and reasoning.To get the findings, Cathy Price, senior researcher of the study, and her colleagues tested 33 British teenagers between the ages of 12 to 16 in 2004, who had average IQ scores around 100. Then the teenagers were retested four years later.The researchers found the volunteers' IQ scores went up and down over the four years, with some teenager's scores rising by as many as 20 points, and others' dropping by the same points."That is quite astounding," cheered psychologist Robert Plomin from the same university but not involved in the study. Dr. Price and her colleagues don't know the causes of such fluctuations in the scores they tested, but speculate that learning experiences might account the changes, reported by the Wall Street Journal Today. "We have to be careful not to write off poorer performers at an early stage when in fact their IQ may improve significantly given a few more years," stated Dr. Price cited by the Huffington Post.

BEIJING, Jan. 20 (Xinhuanet) --The air quality has worsened in the Chinese capital since Wednesday, triggering renewed discontent among residents.Without rainfall and wind to dispel pollutants, particulate matter has been accumulating in the air. Most monitoring stations measured PM 10 (particulate matter smaller than 10 micrograms) at higher than 300 micrograms a cubic meter.In southwestern Beijing's Fangshan district, the Liangxiang station recorded 516 micrograms of PM 10 a cubic meter, the highest reading of the day, according to the Beijing Municipal Environmental Monitoring Center.More than 150 micrograms a cubic meter is considered hazardous to health.Beijing has been shrouded by heavy smog off and on this winter, and the ongoing air concerns are wearing on residents particularly as they prepare to celebrate the Spring Festival holiday next week."I almost got choked by the smog when I stepped out of the office building on Wednesday," said Yang Yanli, 24, an accountant. "The smell is so terrible, as though I'm inhaling chunks of coal, that it has spoiled my holiday mood.""PM 10 intensity has been particularly high these days," said Wang Qiuxia, a researcher at the Green Beagle, a non-governmental organization based in Beijing.Unlike the smog that hit mostly the southern part of the capital on Jan 1, the smog in recent days has shrouded the entire city, according to the Beijing environmental protection bureau.Worse yet, it will linger until Saturday, when the wind will pick up and disperse it, the bureau predicted.The Chinese Center for Disease Control and Prevention suggests people stay at home to protect themselves from respiratory and heart problems triggered by heavy smog."The intensity of indoor pollutants is 30 to 60 percent lower than those outdoors during a hazy day," said Xu Dongqun, an officer with the environmental bureau. "I suggest people with respiratory problems put off traveling if the smog lingers."But many people said they had to brave the foul air to travel, especially migrants who are eager to reunite with their families during Spring Festival."No one likes to travel when the air is this bad, but do you have any choice when Spring Festival is coming?" asked Feng Xiao, a public servant at China's General Administration of Sport. The 24-year-old plans to travel by train from Beijing to her hometown in East China's Shandong province on Friday.

BEIJING, Jan. 05 (Xinhuanet) -- China's satellite television channels have aired fewer entertainment programs this year as broadcasting watchdog's curbs on "excessive entertainment" took effect.The State Administration of Radio, Film and Television has cut two-thirds of "racy" entertainment programs on China's 34 satellite channels since the campaign began, the spokesperson for the administration said on Tuesday.Since the regulation took effect on Jan 1, the total number of entertainment programs scheduled for prime-time -7:30 pm to 10 pm - broadcast a week dropped to 38 from 126 at the end of last year, according to a statement from the administration.Under the regulation, announced in October, each satellite channel can broadcast no more than two entertainment programs a week and the maximum length of the program may not exceed 90 minutes.The targeted programs, including dating shows, reality talent shows and emotional stories on the administration's list, were deemed "excessive entertainment" and showing "less taste"."Satellite channels should design programs with innovative content, promoting traditional virtues and socialist core values in their new entertainment programs," the authority said.The administration considers the move crucial to improving cultural content for the public by offering high-level programs.Meanwhile, the number of news programs on the satellite channels has grown to 193 a day, 33 percent more than in 2011.Currently, news programming on each satellite channel has surpassed two hours, and each channel has at least two 30-minute news programs during prime time.But popular dating shows such as If You Are the One, produced by Jiangsu Satellite TV, and reality shows such as China's Got Talent, aired by Shanghai-based Dragon TV, will remain on during prime time in the weekend.Li Hao, spokesman for Hunan Satellite TV, a broadcaster famous for its entertainment programs, told China Daily the regulation will improve the quality of entertainment programs."We have been exploring how to make entertainment shows more meaningful and valuable," he said, adding that the channel has shortened the length of its two entertainment programs from 110 to 90 minutes."We will supervise programs more strictly, and pay close attention to things such as the clothing and comments of hosts and guests," he added.Cheng Manli, a media professor at Peking University, welcomed the new regulation to limit "less tasteful" programs involving violence and money worship."After all, unhealthy programs may hurt young people who are not able to distinguish right from wrong, which also worries their parents," she said.However, Yu Guoming, a professor at the School of Journalism at Renmin University of China, did not think the regulation was the way to improve cultural development."Whether the entertainment program is good or not should be decided by viewers' reaction, instead of an administration's evaluation," he said. "Residents are under pressure and need to watch shows to relax in our society."Yu also said that a good entertainment program should respect residents' taste and give them more viewing choices, or else it could lead to rigid restrictions.Ma Yuqiang, who runs an online clothing retail company, said the new rule will not affect his daily life, because he can watch the entertainment programs that were taken off prime time on the Internet."I think the regulation will drive most young people to the Internet," Ma, 26, said.