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LOS ANGELES, April 12 (Xinhua) -- With the help of NASA Telescopes, astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, the Jet Propulsion Laboratory (JPL) announced on Tuesday.The finding addresses questions about when the first galaxies arose, and how the early universe evolved, JPL noted in a press release.Infrared data from both the Hubble Space Telescope and the post- coolant, or "warm," phase of NASA's Spitzer Space Telescope mission revealed that the galaxy's stars are quite mature, which means they must have formed when the universe was just a toddler, said JPL in Pasadena, Los Angeles.This challenges theories of how soon galaxies formed in the first years of the universe and could even help solve the mystery of how the hydrogen fog that filled the early universe was cleared, according to astronomers involved in the study.This galaxy is not the most distant ever observed, but it is one of the youngest to be observed with such clarity, JPL said.Normally, galaxies like this one are extremely faint and difficult to study, but, in this case, nature has provided the astronomers with a cosmic magnifying glass, JPL said.The galaxy's image is being magnified by the gravity of a massive cluster of galaxies parked in front of it, making it appear 11 times brighter. This phenomenon is called gravitational lensing."Without this big lens in space, we could not study galaxies this faint with currently available observing facilities," said Eiichi Egami of the University of Arizona in Tucson. "Thanks to nature, we have this great opportunity to see our universe as it was eons ago."The findings may help explain how the early universe became " reionized," according to JPL."Seeing a galaxy as it appeared near the beginning of the universe is an awe-inspiring feat enabled by innovative technology and the fortuitous effect of gravitational lensing," Jon Morse, NASA's Astrophysics Division director at the agency's headquarters in Washington, said in the release."Observations like this open a window across space and time, but more importantly, they inspire future work to one day peer at the stars that lit up the universe following the big bang."

BEIJING, April 10 (Xinhua) -- While advocating Internet freedom worldwide, the U.S. imposes fairly strict restriction on cyberspace on its own territory, said the Human Rights Record of the United States in 2010 issued by the Information Office of China's State Council Sunday.The United States applies double standards on Internet freedom by requesting unrestricted "Internet freedom" in other countries, which becomes an important diplomatic tool for the U.S. to impose pressure and seek hegemony, and imposing strict restriction within its own territory, the report said.According to the report, on June 24, 2010, the U.S. Senate Committee on Homeland Security and Governmental Affairs approved the Protecting Cyberspace as a National Asset Act, which will give the federal government "absolute power" to shut down the Internet under a declared national emergency.

BEIJING, Jan. 31 (Xinhua) -- Chinese President Hu Jintao and other Party and state leaders have sent greetings to dozens of retired officials ahead of the Spring Festival, according to the General Office of the Central Committee of the Communist Party of China.Former President Jiang Zemin and former Premier Li Peng were on the list of those who received either personal visits from leaders or from representatives, said a statement released by the office on Monday.Hu and the other leaders wished the retired officials good health and long life, said the statement.This year's Spring Festival, or the Chinese New Year, falls on Feb. 3.

WASHINGTON, April 6 (Xinhua) -- U.S. researchers have discovered two genes in which variation affects intake of caffeine, the most widely consumed stimulant in the world, according to a report described Wednesday in the open-access journal PLoS Genetics.A team of investigators from the National Cancer Institute, Harvard School of Public Health, Brigham and Women's Hospital, and the University of North Carolina at Chapel Hill examined genetic variation across the entire genome of more than 47,000 individuals from the U.S.They found the genes -- CYP1A2, which has previously been implicated in the metabolism of caffeine, and AHR, involved in the regulation of CYP1A2, played roles in regulating intake of caffeine. Individuals with the highest-consumption genotype for either gene consumed 40 mg more caffeine than those with the lowest-consumption genotype, equivalent to the amount of one-third cup of caffeinated coffee, or one can of cola.Caffeine is implicated in numerous physiological and medical conditions; it affects sleep patterns, energy levels, mood, and mental and physical performance. The identification of genes that have an impact on daily consumption offers opportunities to better understand these conditions. Further exploration of the identified genetic variants may provide insight into the speed of caffeine metabolism, how long caffeine circulates in the blood, or how strong the physiological effects of consuming a given amount of caffeine are.

LUQA, Malta, Feb. 26 (Xinhua) -- A chartered plane of China Eastern Airlines carrying 272 Chinese evacuees from Libya left Malta for Shanghai on Saturday.The Airbus A330-300 plane took off at 8:20 p.m. local time ( 1920 GMT) from the Malta International Airport, to be followed shortly by another chartered plane of China Eastern Airlines with 278 Chinese evacuees on board.The 550-strong Chinese nationals from a Chinese construction company were among a total of 2,216 people who arrived by a ship from violence-torn Libya at the Grand Harbor in Valletta, capital of Malta, on Saturday.In addition to the 2,216 Chinese nationals, the ship chartered by the Chinese embassy in Malta also carried dozens of citizens of other countries.The vessel, which was the first Maltese ship chartered by the Chinese government to evacuate Chinese nationals, left Libya's Benghazi on Friday.Maltese Deputy Prime Minister and Foreign Minister Tonio Borg, who went aboard the ship, expressed gratitude to the Chinese government for helping to evacuate some Maltese nationals from Libya.Chinese Ambassador to Malta Zhang Keyuan also thanked the Maltese government for its cooperation in the evacuation of Chinese nationals.A 19-day-old baby was among the evacuated Chinese, said a source with the Chinese embassy.China Eastern Airlines will fly four planes every day to the Mediterranean island nation from Feb. 28 to March 10, as part of all-round airborne evacuation missions aimed at taking stranded Chinese citizens back home as soon as possible, according to information from an emergency meeting of the Civil Aviation Administration of China (CAAC) in Beijing on Saturday.

来源：资阳报