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SAN FRANCISCO, March 20 (Xinhua) -- Boeing's 747-8 Intercontinental took to the sky for the first time on Sunday, a milestone for the U.S. aviation giant's latest and biggest passenger plane.Live webcast by Boeing showed that a 747-8 Intercontinental touched down at around 2:25 p.m. PST (2125 GMT) Sunday at the Boeing Field airport in Seattle in the U.S. states of Washington, after wrapping up the airplane's inaugural flight that lasted about four and half hours.During the test flight, the pilots did some system and function checks and everything went fine, according to the webcast.The new 747-8 Intercontinental can carry 467 passengers in a three-class configuration, said Boeing, which touted the new wide- body jet airliner as the only airplane in the 400-500 seat market.The Boeing 747-8 Intercontinental takes off on its maiden flight from Paine Field, in Everett, Washington, March 20, 2011. The 747-8 Intercontinental willseat 467 passengers, 51 more than the latest model of the classic 747, and burn less fuel while offering passengers more comfort, the U.S. planemaker says.Using 787-technology GEnx engines, the airplane will be quieter, produce lower emissions and achieve better fuel economy for airlines, Boeing said.The airplane also features a new wing design and an upgraded flight deck. Its interior incorporates features from the Boeing 787 Dreamliner including a new curved, upswept architecture that will give passengers a greater sense of space and comfort, while adding more room for personal belongings.Boeing has noted that compared with its predecessor, the 747- 400, the 747-8 Intercontinental provides 16 percent better fuel economy, 16 percent less carbon emissions per passenger and generates 30 percent smaller noise footprint, while carries 51 more passengers.Boeing in February said that Korean Air, VIP customers and launch customer Lufthansa have ordered a total of 33 747-8 passenger planes, with the first delivery scheduled for the fourth quarter of this year.It is reported that the 747-8 Intercontinental has a list price of about 317 million U.S. dollars.Earlier in March, Boeing announced that it has signed an agreement with Air China for the purchase of five 747-8 Intercontinental jetliners.

ADDIS ABABA, Jan. 28 (Xinhua) -- The on-going political crisis in Cote d’Ivoire should be and can be solved peacefully, Chinese Envoy and Assistant Foreign Minister Liu Zhenmin told Xinhua here on Friday, ahead of the 16th African Union (AU) summit scheduled for Jan. 30-31.Liu was in the Ethiopian capital Addis Ababa, the headquarters of the 53-member African bloc, to attend the summit as special envoy of the Chinese government.Cote d'Ivoire has been trapped in a political impasse since the landmark presidential run-off held on Nov. 28. Both incumbent Laurent Gbagbo and opposition leader Alassane Ouattara claimed victory and swore themselves in as president, and formed their respective government.Gbagbo was backed by the country's Constitutional Council, while Ouattara has the support of the electoral commission and the international community including the United Nations (UN), the AU, the Economic Community of West African States (ECOWAS), the United States and France.China hopes various parties and stakeholders in Cote d’Ivoire can resolve their disputes through dialogues and consultations based on the interest of the country and its people, and maintain peace and stability, Liu said.A peaceful solution to the crisis is not only in the interests of the Ivorian people, but of the West African region as a whole, according to Liu.China appreciates the efforts made by the AU and ECOWAS to find a peaceful solution to the crisis, and will continue supporting Africa’s efforts to resolve the crisis peacefully, Liu said.According to the UN, more than 200 people have died from violence during the power struggle between Gbagbo and Ouattara.The 16th AU summit, to be held under the theme “Towards Great Unity and Integration Through Shared Values,” will gather heads of states and government from member states to discuss issues including Africa’s integration, and peace and security in the continent. The situation in Cote d’Ivoire, among others, is expected to top the agenda of the summit.

WASHINGTON, May 4 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) announced Wednesday that its Gravity Probe B (GP-B) mission has confirmed two key predictions derived from Albert Einstein's general theory of relativity, which the spacecraft was designed to test.The experiment, launched in 2004, used four ultra-precise gyroscopes to measure the hypothesized geodetic effect, the warping of space and time around a gravitational body, and frame- dragging, the amount a spinning object pulls space and time with it as it rotates.GP-B determined both effects with unprecedented precision by pointing at a single star, IM Pegasi, while in a polar orbit around Earth. If gravity did not affect space and time, GP-B's gyroscopes would point in the same direction forever while in orbit. But in confirmation of Einstein's theories, the gyroscopes experienced measurable, minute changes in the direction of their spin, while Earth's gravity pulled at them.The findings are available online in the journal Physical Review Letters."Imagine the Earth as if it were immersed in honey. As the planet rotates, the honey around it would swirl, and it's the same with space and time," said Francis Everitt, GP-B principal investigator at Stanford University. "GP-B confirmed two of the most profound predictions of Einstein's universe, having far- reaching implications across astrophysics research."GP-B is one of the longest running projects in NASA history, with agency involvement starting in the fall of 1963 with initial funding to develop a relativity gyroscope experiment. Subsequent decades of development led to groundbreaking technologies to control environmental disturbances on spacecraft, such as aerodynamic drag, magnetic fields and thermal variations. The mission's star tracker and gyroscopes were the most precise ever designed and produced.GP-B completed its data collection operations and was decommissioned in December 2010."The mission results will have a long-term impact on the work of theoretical physicists," said Bill Danchi, senior astrophysicist and program scientist at NASA Headquarters in Washington. "Every future challenge to Einstein's theories of general relativity will have to seek more precise measurements than the remarkable work GP-B accomplished."

JERUSALEM, April 12 (Xinhua) -- Israeli-Canadian archaeologist Simcha Jacobovici may have stumbled upon a major archaeological find if his claim of unearthing the nails used to hold Jesus on the cross during his crucifixion are to be believed.Jacobovici maintains that small metal remains dug out of the soil in a cave in a Jerusalem neighborhood are in fact the nails that held Jesus on the cross, the Ha'aretz daily reported Tuesday.The artifacts were found in a cave in the Armon Hanatziv ridge, about 6 km south of the Old City, during the course of a construction work in 1990. The hilly area now contains apartment buildings.During the excavation of the cave, a stone vessel with the name Caiaphas, the name of the High Priest considered responsible for turning Jesus over to the Romans, and two rusty nails, which Jacobovici believes to be the relics, was unearthed.However, officials from the Israeli Antiquities Authority told Xinhua although they regard Jacobovici as a great archaeologist and documentary filmmaker, they do not believe the cave really belongs to the High Priest of the Second Temple period (between 536 BC and 70 AD)."The reason is that during that period of time there were a lot of people with the name Caiaphas," a statement from the Antiquities Authority said, "And for example, it is inconceivable that every gravestone bearing the name Moshe Dayan, which is very common in these parts, should be ascribed to the same personality who played so prominent a role in our recent history."Dayan was an Israeli army general who led his troops to victory in the 1967 war.The authority considers Jacobovici's contention as "fantasy" that should not be considered conclusive, since there is no agreed- upon evidence backing it up.Jacobovici is standing his ground, however, and contends that during the Second Temple Period the name Caiaphas was uncommon, and therefore the tomb must belong to the infamous priest.Jacobovici, a well-known documentary filmmaker, has produced films about the Israeli-Palestinian conflict and human trafficking that earned him two Emmy Awards.He also worked alongside film director James Cameron on the movie Jesus' Lost Tomb.He expects to soon release a movie about the latest finds, entitled Nails on the Cross.

BEIJING, May 20 (Xinhuanet) -- Scientists have discovered a Jupiter-sized exoplanet that is completely unbound from a host star, according the scientific journal "Nature" published Thursday.The research was conducted by astrophysicists from Osaka University in Japan.Using the technique called "gravitational microlensing", scientists turned their telescopes towards the centre of the Milky Way and detected this "lonely planet" moving in a extremely large orbit, which suggested it does not connect to any solar system.Then they estimated the total number of such wondering planets could be as many as 400 billion, based on the detection efficiency. This number far outnumbers the main-sequence stars such as our Sun."This is an amazing result, and if it is right, the implications for planet formation are profound," says astronomer Debra Fischer at Yale University in New Haven, Connecticut.And scientist began to consider the possibility that liquid water could exist on this kind of unbound planets. "That might be an attractive possibility for life," said David Stevenson, a planetary scientist at the California Institute of Technology.