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WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said.The second Gravity Recovery And Interior Laboratory, or GRAIL-B, reached its lunar orbit at 5:43 p.m. EST (2243 GMT) on Sunday, according to the National Aeronautics and Space Administration (NASA).The GRAIL-A started orbiting the moon at 5 p.m. (2200 GMT) Saturday.The insertion maneuvers placed the spacecraft into a near-polar, elliptical orbit with an orbital period of approximately 11.5 hours, NASA said.Over the coming weeks, the GRAIL team will execute a series of burns with each spacecraft to reduce their orbital period to just under two hours. At the start of the science phase in March 2012, the twin GRAILs will be in a near-polar, near-circular orbit with an altitude of about 55 km."NASA greets the new year with a new mission of exploration," Administrator Charles Bolden said in a statement. "The twin GRAIL spacecraft will vastly expand our knowledge of our moon and the evolution of our own planet."During GRAIL's science mission, the two probes will transmit radio signals precisely defining the distance between them. As they fly over areas of greater and lesser gravity caused by visible features such as mountains, craters and masses hidden beneath the lunar surface, the distance between the twin spacecraft will change slightly.Scientists will translate this information into a high-resolution map of the moon's gravitational field.The data will allow scientists to understand what goes on below the lunar surface and increase knowledge of how Earth and its rocky neighbors in the inner solar system developed into the diverse worlds we see today.

CANNES, France, Nov. 3 (Xinhua) -- Chinese President Hu Jintao met here Wednesday his French counterpart Nicolas Sarkozy on bilateral ties and other issues of common concern, including the Group of 20 summit scheduled for Thursday and Friday.Hu pointed out that since the global economic recovery is now burdened by quite a few instable and uncertain factors, the international community has great expectations of the G20 Summit in Cannes."The Chinese side actively supports the French side to host the summit," Hu said, emphasizing that the G20 should continue to uphold the spirit of cooperation and send a clear and definite signal of securing growth and promoting stability to the international community through this summit.Hu expressed the hope that all relevant parties should jointly endeavor to make the Cannes summit a conference of solidarity and win-win cooperation.Sarkozy expressed his appreciation of the effort China has made to prepare for the G20 summit. He said the French side was ready to strengthen coordination and cooperation with the Chinese side and work with all other parties to push for positive results at the summit.Hu said Europe is the largest economy in the world, and there will be no global economic recovery without a recovery of the European economy.He pointed out that the package deal that the European Union (EU) struck lately demonstrates its will and determination to resolve Europe's debt problem. He hoped that the implementation of the package deal would help overcome the difficulties facing Europe and be conducive to the recovery and growth of the European economy."It is mainly up to Europe to resolve the European debt problem," Hu said."We believe that Europe has all the wisdom and capability to resolve the debt problem," he added.Sarkozy said Europe is committed to resolving the debt crisis by making its own effort and strengthening cooperation with the international community. Hu said China wants to see Europe prosper.Noting that it was the third time for him to meet Sarkozy so far this year, Hu said the two sides had a frank and in-depth exchange of views on bilateral links, world economic situation, G20 affairs and major international issues and reached many important consensuses.The development of China-France relations has maintained good momentum recently. President Hu paid a state visit to France in November last year and met Sarkozy in March and August this year when the French president visited China.Hu said China places importance on developing its relations with France and the EU. He also thanked Sarkozy for France's meticulous preparation for the G20 summit and its hospitality to global leaders.France values China's role and appreciates its focus on major international issues, Sarkozy said, adding that his country is willing to maintain close communication and consultation with China.

BEIJING, Oct. 13 (Xinhuanet) -- Tyrannosaurus rex dinosaur, the giant prehistoric predator, was even bigger and heavier than it was estimated previously, a new study found.The finding was contained in a study published Wednesday in the scientific journal PLoS ONE.Using three-dimension scanning and computer modeling, researchers analyzed five skeleton fossils of T. rex dinosaur, including "Sue", the largest and most complete T. rex specimen ever found.The analysis tipped the scale of "Sue" at 9 ton, some 30 percent more than it was expected."At their fastest, in their teenage years, they were putting on 11 pounds or 5 kilograms a day," said John Hutchinson of the Royal Veterinary College in London, who co-led the study.The larger body mass indicated the better agility and the stronger lower-leg muscles of the ancient monster, said the researcher."Sue" could have a top speed of about 10-25 miles per hour when it ran on the Great Plains of North America 67 million years ago, Hutchinson suggested.

BEIJING, Oct. 21 (Xinhua) -- Vice President Xi Jinping has said China is willing to cooperate with Russia on strategic security matters, and that the two nations should work more closely on bilateral and multilateral issues.Xi made the remarks on Thursday in his meeting with Russian Security Council Secretary Nikolai Patrushev, according to a press release issued by the Chinese Foreign Ministry on Friday.China will work more closely with Russia in order to strengthen communication and coordination on regional and international issues, Xi said.Patrushev is in Beijing to co-chair the sixth round of China-Russia strategic security talks with Chinese State Councilor Dai Bingguo.Chinese Vice President Xi Jinping (R) shakes hands with Russian Security Council Secretary Nikolai Patrushev (L) in Beijing, capital of China on Oct. 20, 2011.Xi spoke highly of the contribution made by the China-Russia strategic security talks in boosting bilateral political mutual trust and strategic coordination, calling on the two sides to step up strategic coordination in a bid to better safeguard the common interests of the two nations and promote peace and stability in the world.Citing the significant and profound transition of the international situation, Xi said the two nations face opportunities as well as challenges in maintaining a strategically secure environment for their own development.On bilateral relations, Xi said China always prioritizes its relations with Russia in the country's foreign policy. He expressed China's willingness to make concerted efforts with Russia to push forward bilateral cooperation in the political, economic, energy, science and technology fields.Russia was highly satisfied with the current development of the bilateral ties, Patrushev said, proposing the two sides should strengthen strategic communication, expand mutual trust and cement coordination in multilateral organizations such as the United Nations and the Shanghai Cooperation Organization.China-Russia strategic security talks were initiated by leaders of the two countries in 2005.

BEIJING, Oct. 21 (Xinhua) -- China's State Councilon Thursday called ordered improved, innovative administration in environmental protection, according to a statement.In a statement published on the central government's website, the State Council listed a series of guidelines on environment-related issues, saying that it will step efforts to address prominent environmental problems that affect people's lives and sustainable development.The statement ordered strictly implementing environmental impact assessment, vigoroulsy developing environmental protection industry, and ensuring nuclear and radioactive safety.It called for implementing economic policies beneficial to environmental protection.The statement also ordered local governments at all levels to attach more importance to environmental protection, noting ecological conditions should be considered in evaluating the performance of local leaders.