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WASHINGTON, Dec. 5 (Xinhua) -- NASA's Kepler mission has confirmed its first planet in the "habitable zone," a region where liquid water could exist on a planet's surface, the U.S. space agency announced on Monday.The newly-confirmed planet, Kepler-22b, is the smallest yet found to orbit in the middle of the habitable zone of a star similar to Sun. The planet is about 2.4 times the radius of Earth. Scientists don't yet know if Kepler-22b has a predominantly rocky, gaseous or liquid composition, but its discovery is a step closer to finding Earth-like planets.Previous research hinted at the existence of near-Earth-size planets in habitable zones, but clear confirmation proved elusive. Two other small planets orbiting stars smaller and cooler than Sun recently were confirmed on the very edges of the habitable zone, with orbits more closely resembling those of Venus and Mars.Kepler-22's star is a bit smaller than our sun, so its habitable zone is slightly closer in. The diagram shows an artist's rendering of the planet comfortably orbiting within the habitable zone, similar to where Earth circles the sun. Kepler-22b has a yearly orbit of 289 days. The planet is the smallest known to orbit in the middle of the habitable zone of a sun-like star. It's about 2.4 times the size of Earth."This is a major milestone on the road to finding Earth's twin, " said Douglas Hudgins, Kepler program scientist at the NASA Headquarters in Washington. "Kepler's results continue to demonstrate the importance of NASA's science missions, which aim to answer some of the biggest questions about our place in the universe."Kepler discovers planets and planet candidates by measuring dips in the brightness of more than 150,000 stars to search for planets that cross in front, or "transit," the stars. Kepler requires at least three transits to verify a signal as a planet."Fortune smiled upon us with the detection of this planet," said William Borucki, Kepler principal investigator at the NASA Ames Research Center who led the team that discovered Kepler-22b. "The first transit was captured just three days after we declared the spacecraft operationally ready. We witnessed the defining third transit over the 2010 holiday season."The Kepler science team uses ground-based telescopes and the Spitzer Space Telescope to review observations on planet candidates the spacecraft finds. The star field that Kepler observes in the constellations Cygnus and Lyra can only be seen from ground-based observatories in spring through early fall. The data from these other observations help determine which candidates can be validated as planets.Kepler-22b is located 600 light years away. While the planet is larger than Earth, its orbit of 290 days around a Sun-like star resembles that of Earth. The planet's host star belongs to the same class as Sun, called G-type, although it is slightly smaller and cooler.Of the 54 habitable-zone planet candidates reported in February 2011, Kepler-22b is the first to be confirmed. This finding will be published in The Astrophysical Journal.

ADDIS ABABA, Nov. 2 (Xinhua) -- Ethiopia will host the 13th World Congress on Public Health (WCPH) in April 2012, the Ethiopian Public Health Association (EPHA) said on Wednesday.The meeting will be held on April 23-27 under the theme: "Moving towards Global Health Equity- Opportunities and Treats".Speaking on the 22nd annual meeting of EPHA held here on Wednesday EPHA President Tewabech Bishaw said about 3,000 participants, including public health students from all over the world are expected to take part in the meeting.He said that preparations are well underway to successfully conduct the meeting.

BEIJING, Jan. 8 (Xinhua) -- China canceled over one-third of all official ceremonies, seminars and forums last year in a bid to avoid extravagance or corruption in the use of public resources.Some 2,549 such activities proposed by governments or public institutions, or 37.7 percent of the total applications, which were deemed "ceremonial" and "unnecessary," were cut, saving 1.22 billion yuan (about 193.39 million U.S. dollars), said an official statement released Sunday.The statement was issued by the State Council's Office for Rectifying Malpractices, a ministry-level inter-agency supervisory body dedicated to eliminating administrative irregularities and abuse of power in government agencies, public institutions and major service sectors.Last year's inspections focused on activities co-funded by ministries and local governments, the statement said.The Chinese government agreed with the public that the soaring number of official celebrations, seminars and forums would cost plenty of money and manpower and exacerbate corrupt behaviors.In March, the State Council, or China's Cabinet, ordered 98 ministries and ministry-level government organs to make public their budgets and expenditures on official overseas visits, public vehicles and official receptions -- the "three public consumptions" that had triggered widespread public concern.Premier Wen Jiabao also repeatedly urged the country's government agencies to reduce administrative expenses, including cutting the number of meetings and documents printed.Official figures indicate that the country's crackdown on various forms of extravagant spending by officials saved the country 5.7 billion yuan in 2010.A blue book on China's conferences published in November estimated that the total output of the country's conference industry had reached nearly 1 trillion yuan. Companies made up half of this total, while a considerable portion came from the government and public institutions compared to other social organizations.

SAN FRANCISCO, Jan. 12 (Xinhua) -- Microsoft on Thursday announced a patent licensing agreement with LG Electronics covering the South Korean manufacturer's tablets, smartphones and other consumer devices running Google's Android or Chrome operating system.In a press release, Microsoft said it marks the 11th deal with a device manufacturer leveraging Google's operating system platform, noting that "more than 70 percent of all Android smartphones in the U.S. are now receiving coverage under Microsoft 's patent portfolio."Terms of the deal were not disclosed. So far, Microsoft has struck major cross-licensing patent agreements with HTC, Samsung and Acer, among others.Last September, Microsoft announced a broad patent deal with Samsung. U.S. media reports cited South Korean media as saying that Microsoft had wanted Samsung to pay 10 to 15 U.S. dollars for each Android device.The booming mobile market has been harassed by acrimonious legal battles over patent infringement. Being an open source operating system, Google's Android has become a major target of patent suits.Microsoft has been going after companies that make phones and tablets running Android, rather than directly against Google. But the two tech giants are still engaged in public spats over the issue after Google's top legal officer posted a scathing blog last August accusing Microsoft and other companies of waging "a hostile, organized campaign against Android."Motorola Mobility, which Google announced to acquire in a 12.5 billion-dollar deal last August, currently is the last major Android device vendor that refuses to take a license from Microsoft.Frank Shaw, Microsoft's head of communications, used Twitter to taunt Google on Thursday, twitting "Hey Google -- we are the 70 percent" with a link to their press release.Brad Smith, Microsoft's executive vice president and general counsel, also tweeted "it's time to recognize that in patent world, lawsuits are the 1 percent; license agreements are the 99 percent. "Google so far has made no comments on the Microsoft-LG patent deal.

BEIJING, Jan. 9 (Xinhua) -- The United States Treasury Secretary Timothy Geithner will discuss economic ties and exchange views with Chinese officials on the global economic situation during his trip to China, Foreign Ministry spokesman Liu Weimin said on Monday.Liu said at a regular press briefing that Geithner will visit China from Jan. 10 to 11 as the U.S. President's special representative. Premier Wen Jiabao, Vice President Xi Jinping, Vice Premier Li Keqiang and Vice Premier Wang Qishan will meet with him during the visit.Liu said China and the U.S. have agreed to build a partnership of cooperation based on mutual respect and mutual benefit."The global economic and financial situation is facing severe challenges. Further strengthening China-U.S. economic and trade cooperation will be helpful in meeting these challenges," Liu said."China has proposed further promoting the two countries' economic and trade cooperation and hopes the U.S. will work with China toward this end," Liu said.

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