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BEIJING, Oct. 18 (Xinhuanet) -- NASA recently unveiled its new rocket design, named Space Launch System (SLS), according to media reports.The rocket will make its first unmanned flight in 2017, and the flight with astronauts aboard won't happen until 2021, according to NASA's plan.The new rocket was 320 feet in length (the space shuttle was 184 feet on the launch pad), 5.5 million pounds in weight, and with the capacity of holding four astronauts at the top speed of 25,000 miles per hour, Washington Post reported Tuesday.Compared with space shuttle and other predecessors, the new rocket will aim for much farther destinations into the space with its most powerful engine ever built, according to the plan."We're investing in technologies to live and work in space, and it sets the stage for visiting asteroids and Mars," the NASA administrator Charles Bolden briefed the media at a news conference in Washington.NASA expected to devote 3 billion U.S. dollars a year to the effort, or a total of about 18 billion U.S. dollars over the next six years, said William Gerstenmaier, the agency’s associate administrator for human exploration.The current financial condition of U.S. may slow down the pace of progress, which will be much slower than NASA's Apollo heyday in the 1960s.

BEIJING, Oct. 11 (Xinhuanet) -- Scientists have discovered that blind optimism is related to brain's frontal lobes which are associated with processing errors, according to a British study published Monday in the journal Nature Neuroscience.Scientists at the University College of London scanned brains of volunteers who were asked to estimate their personal likelihood of involving in negative events, like a divorce or cancer,  before and after given the average probability of these events occurring.They found that the volunteers who estimated lower probability (or the more optimistic ones) than the given one raised their estimates a little bit later while those estimated higher probability altered their estimates much more.Through the brain scanner, scientists saw there was less activity in the volunteers' frontal regions when the information given was worse than expected while more activity when the information was better than expected. It suggested that the more optimistic people neglected the negative predictions."The more optimistic we are, the less likely we are to be influenced by negative information about the future," said Dr. Tali Sharot, lead author of the study. He added being optimistic clearly had some benefits, "but it can also mean that we are less likely to take precautionary action, such as practising safe sex or saving for retirement. So why don't we learn from cautionary information?"

BEIJING, Nov. 13 (Xinhua) -- China has established an operation committee for management of the country's first space lab module, Tiangong-1, during its two-year orbit of earth.The committee will deal with operations planning, technical appraisal and flight control of the target orbiter after the unmanned Shenzhou-8 spacecraft returns to earth after its mission, the official website of China's manned space program said.The Tiangong-1 space lab module was launched on Sept. 29 and docked with Shenzhou-8 precisely on Nov. 3, China's first ever space docking attempt. The second docking between Tiangong-1 and Shenzhou-8 is scheduled for Nov. 14.The manned space program said earlier that the same target orbiter Tiangong-1 will accommodate another two docking missions performed by two other Shenzhou spaceships, at least one of which will be manned.The 8.5-tonne Tiangong-1 is the first space lab module that China has built, and the committee will also be the first in taking care of a long-running space asset.The operation committee for Tiangong-1 heralds China's manned space program entering a new phase for lengthy flight missions, Niu Hongguang, director of the operation committee, said on the website www.cmse.gov.cn.The orbiting module management will include taking care of the space lab, making preparations for any further docking tests and gathering experience for building a future space station, Niu said.

CANNES, France, Nov. 3 (Xinhua) -- Chinese President Hu Jintao Thursday delivered a speech at the G20 Summit in the French resort city of Cannes. The following is the full text of Hu's speech.Promote Growth Through Win-Win CooperationRemarks by H.E. Hu JintaoPresident of the People's Republic of ChinaAt the Sixth G20 SummitCannes, 3 November 2011President Nicolas Sarkozy,Dear Colleagues,I am glad to come to Cannes to attend the sixth G20 Summit and explore with you ways to counter risks and challenges and promote global development. First of all, I wish to express sincere thanks to you, President Sarkozy, and the French government for the active efforts and thoughtful arrangements you have made for the summit.Currently, the world economic situation needs our high attention. Some major economies are experiencing economic slowdown, and some countries are facing acute sovereign debt problems. Volatility in the international financial markets persists. High inflationary pressure confronts emerging markets. The turbulence in west Asia and north Africa continues. And extreme weather and frequent natural disasters have also exerted negative impact on the world economy. As a result, the global economic recovery is fraught with instability and uncertainty and encounters growing risks and challenges.What has happened since the outbreak of the international financial crisis in 2008 shows that we are facing not just an economic and financial crisis. It is a crisis that has exposed certain deficiencies in the existing institutions and mechanisms, policies and approaches, and ways of development. The world economy is now at a crossroads and global economic governance faces arduous tasks. It is imperative that we stand on a higher plane, transcend differences on specific issues, move beyond short-term considerations, and jointly seek ways to overcome the crisis and sustain development. As the premier forum for international economic cooperation, the G20 must continue to demonstrate the spirit of standing together in times of adversity and pursuing win-win cooperation. At this critical moment, the G20 must work to address the key problems, boost market confidence, defuse risks and meet challenges, and promote global economic growth and financial stability. I wish to make the following proposals in this connection.

BEIJING, Jan. 6 (Xinhua) -- Surveillance data on the size and frequency of earthquakes in Antarctica collected by China's Great Wall Station show that the continent is not earthquake-free, a Chinese seismic expert said Thursday."China's newly-built seismic observatory in Great Wall Station has documented a hundred-odd earthquakes occurring in the region over the past year," said Chang Lijun, a member of China's 28th Antarctic expedition team.The discovery challenges the prevailing notion that the Antarctic has no earthquakes, as many earthquakes have gone undetected due to lack of seismological observation in the region.However, thanks to technological advances, scientists have discovered that the continent is still subject to some minor tremors.Chang, also an associate researcher at China Earthquake Administration's Geophysics Institute, said last year's earthquakes ranged in magnitude from 0.5 to 4, scales which are usually undetectable to common people.The tectonic movements of Antarctica, which sits on two plates that pulled away from each other in the northern Ross Sea between 28 and 40 million years ago, but later converged, fascinate geologists worldwide.At the end of 2010, Chinese scientists set up a new broadband seismic observatory in Great Wall Station, greatly increasing China's ability to measure tremors and tectonic movements on the continent.