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WASHINGTON, May 25 (Xinhua) -- Two U.S. astronauts conducted the third of four scheduled spacewalks for space shuttle Endeavour 's STS-134 mission on Wednesday morning, the U.S. National Aeronautics and Space Administration (NASA) announced.Endeavour's mission specialists Drew Feustel and Mike Fincke completed a six-hour-54-minute spacewalk at 8:37 a.m. EDT (1437 GMT). They completed all planned tasks, installing cables to increase redundancy for the power system on the Russian segment of the station, completing the external wireless antenna system work Feustel and Greg Chamitoff began during the first spacewalk, and installing a power and data grapple fixture to Zarya. The fixture will allow the station's robotic arm to "walk" to the Russian segment, extending its reach by using that grapple fixture as a base.It was the 247th spacewalk conducted by U.S. astronauts, and the 158th in support of space station assembly and maintenance, totaling 995 hours and 13 minutes. If everything goes as planned, the 1,000th hour of space station assembly and maintenance will be logged on Friday.Endeavour lifted off on May 16 from the Kennedy Space Center in Florida, to deliver to the International Space Station a 2-billion- dollar, multinational particle detector known as the Alpha Magnetic Spectrometer (AMS).AMS, a particle physics detector, is designed to search for various types of unusual matter by measuring cosmic rays. Its experiments are designed to help researchers study the formation of the universe and search for evidence of dark matter, strange matter and antimatter.NASA's 30-year-old shuttle program is ending due to high operating costs. The Obama administration wants to spur private companies to get into the space taxi business, freeing NASA to focus on deep space exploration and new technology development.There were initially five space shuttles in the fleet -- Challenger exploded shortly after liftoff in 1986 and Columbia disintegrated on its way back to Earth in 2003. Discovery retired earlier this year, while Endeavour is currently on its final mission. A last mission for Atlantis is scheduled for July, though funding for Atlantis remains in question.The sixth shuttle, Enterprise, did test flights in the atmosphere but was never flown into space. It is already on display at a museum outside Washington.When the U.S. space shuttle program officially ends later this year, the Russian space program's Soyuz capsule will be the only method for transporting astronauts to and from the station.

BEIJING, Jan. 30 (Xinhua) -- China hoped Egypt could restore social stability and normal order at an early date, Foreign Ministry spokesman Hong Lei said Sunday."China has been closely watching the development of the situation in Egypt," Hong said when asked to comment on the ongoing turmoil in the country."Egypt is a friendly country with China, and we hope Egypt could restore social stability and normal order at an early date," he said.

SAN FRANCISCO, April 7 (Xinhua) -- A latest research has shown that worldwide camera phone sales, driven by fast growing high- tier camera phone market, will top 1 billion units for the first time in 2011.According to the study by Strategy Analytics, a global independent research and consulting firm, sales of camera phones are projected to grow by 21 percent from 918 million units last year to 1.114 billion units in 2011, which will be the first time that annual volumes of camera phones have exceeded the 1-billion mark."The fastest growing segment of the camera phone market will be the high-tier. We forecast camera phones with sensors of eight megapixels and above to grow a healthy 240 percent worldwide during 2011," Neil Mawston, director at Strategy Analytics, said in a statement on Thursday.He added that smartphone vendors, such as Nokia and HTC, are increasingly loading their flagship models with more megapixels to deliver improved imaging quality for premium operator services.Statistics from Strategy Analytics show that some 4.2 billion camera phones have been sold worldwide since 2000.

BEIJING, May 16 (Xinhuanet) -- NASA is close to deciding on a landing site for its Mars rover Curiosity mission by narrowing the choices to four, media reports said Monday.Scientists in the close-knit Mars research community get one last chance to make their case this week when they gather before the "judges" — the team running the 2.5 billion U.S. dollar mission that will soon suggest a landing site to NASA, the ultimate decider."All four of these places are compelling places on Mars to study. There's not a loser among them," said landing site scientist Matt Golombek of the NASA Jet Propulsion Laboratory, one of the meeting's leaders.The mission will use rover Curiosity to study whether a selected area will have environmental conditions suitable for life and for preserving evidence about whether extraterrestial life has existed.Being nuclear-powered, the rover cannot go to a location that has either water or ice within one meter of the surface.The size of a mini Cooper, Curiosity is scheduled to launch in late November after a two-year delay.

LONDON, March 15 (Xinhua) -- The moon would be in a "super position" on Saturday, which makes it a "supermoon" and the web is awash with myths about its implications such as connection to recent earthquakes, but that's not the case according to British experts.Technically the so-called "supermoon" means that the moon would be in its perigee, the closest point to earth in its orbit on March 19, and on top of that, it would also be a full moon at the same time.The massive earthquake in Japan just fueled the speculation that the gravitational pull of the "supermoon" will bring chaos to the Earth, such as earthquakes and volcanic activities.But "there is little that is special about perigee on March 19," said Dr. Robert Massey, deputy executive secretary of the Royal Astronomical Society. He said the moon will be around 360,000 km from the earth on that day, but this has happened at least 15 times during the last 400 years."There is no reason whatsoever to believe that there is a connection between the so-called 'supermoon' and the recent earthquake," Massey told Xinhua. "There are also no other 'abnormal' phenomena connected with a 'supermoon' other than the high tides that we experience twice every month."Massey was echoed by Dr. Bruce Malamud, a geophysicist in the Department of Geography at King's College London, who that: "A supermoon will not be able to actually influence at all the internal workings of our Planet Earth, as there is so much momentum and mass already stored up, that the actual effect is negligible.""The earthquake took place a full 8 days before the 'supermoon' meaning that the tidal forces exerted by the moon and sun together were near their minimum rather than maximum level, directly contradicting the fearmongers," said Massey.Calling the "supermoon" claims "bogus science," he questioned the motives of those who made such claims on the day that thousands of people died in a severe earthquake and the ensuing tsunami.