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LOS ANGELES, April 1 (Xinhua) -- A NASA Gulfstream-III aircraft equipped with a synthetic aperture radar is scheduled to depart Sunday, April 3 on a nine-day mission to image Hawaii volcanoes, the Jet Propulsion Laboratory (JPL) announced on Friday.The aircraft will fly from the Dryden Aircraft Operations Facility in Palmdale, California to the Big Island of Hawaii to study the Kilauea volcano that recently erupted, said JPL in Pasadena, Los Angeles.The mission will help scientists better understand processes occurring under Earth's surface, JPL said.Developed by JPL, the Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR, uses a technique called interferometric synthetic aperture radar that sends pulses of microwave energy from the aircraft to the ground to detect and measure very subtle deformations in Earth's surface, such as those caused by earthquakes, volcanoes, landslides and glacier movements.As the Gulfstream-III flies at an altitude of about 12,500 meters, the radar, located in a pod under the aircraft's belly, will collect data over Kilauea, according to JPL.The UAVSAR's first data acquisitions over this volcanic region took place in January 2010, when the radar flew over the volcano daily for a week. The UAVSAR detected deflation of Kilauea's caldera over one day, part of a series of deflation-inflation events observed at Kilauea as magma is pumped into the volcano's east rift zone.This month's flights will repeat the 2010 flight paths to an accuracy of within 5 meters, or about 16.5 feet, assisted by a Platform Precision Autopilot designed by engineers at NASA's Dryden Flight Research Center on Edwards Air Force Base, California, JPL said.By comparing these camera-like images, interferograms are formed that reveal changes in Earth's surface, said JPL.Between March 5 and 11, 2011, a spectacular fissure eruption occurred along the east rift zone. Satellite radar imagery captured the progression of this volcanic event."The April 2011 UAVSAR flights will capture the March 2011 fissure eruption surface displacements at high resolution and from multiple viewing directions, giving us an improved resolution of the magma injected into the east rift zone that caused the eruption," said JPL research scientist Paul Lundgren."Our goal is to be able to deploy the UAVSAR on short notice to better understand and aid in responding to hazards from Kilauea and other volcanoes in the Pacific region covered by this study," Lundgren added.

BEIJING, Feb. 25 (Xinhua) -- Chinese Vice Premier Li Keqiang on Thursday ordered local governments to increase funding for affordable housing projects, stressing that the construction of 10 million units was a mandatory task that must be fulfilled this year.Speaking at a national conference on affordable housing for low and middle income groups, Li said that the construction of 10 million affordable housing units this year is of great significance for the government to stabilize public expectations, control housing prices, improve people's lives and boost domestic consumption."Housing is imperative for people's lives and local governments must waste no time in beginning the construction of 10 million affordable housing units this year and putting them into service as early as possible," Li said.To facilitate the government's subsidized affordable housing projects, Li said that local governments should ensure basic market supply with small units and guide the public to "reasonable consumption."More efforts are also needed to develop low-rent public housing and satisfy the demands of residents for affordable public housing, Li said. To support the construction of affordable housing, local governments can use tax breaks, determine the rent for public housing reasonably and finance construction projects in different ways, such as bank loans and social investment, he added.Li also called on local governments to increase land supplies for common commercial housing construction. The vice premier called on authorities to ensure transparency and fairness in the distribution of affordable housing units to benefit low-income groups who are in need.He stressed the need to discourage house purchases for the purposes of investment and speculation and to increase the supply of common commercial apartments and strictly implement the central government's macro control policies for the real estate market.The Chinese central government signed strict agreements with provincial governments to guarantee the construction of 10 million government-subsidized apartments this year. The target of building 10 million government-subsidized apartments is 72.4 percent more than last year, according to official figures.China's affordable housing provisions are divided into different categories, including "economic housing" that are sold below market prices, "price-capped housing," government-owned "low-rent housing" for extremely poor residents and "public-rent housing" for a wider range of people.

NEW YORK, March 9 (Xinhua) -- The U.S. stocks dropped on Wednesday, the two-year anniversary of the beginning of a bull market, as concerns of oil prices and Middle East unrest continued to weigh on investors' minds.U.S. crude oil price dipped on Wednesday as crude inventories rose more than expected, though Brent crude rose on fears caused by continued violence in Libya.Meanwhile, Rex Tillerson, the CEO of energy giant Exxon Mobil Corp., said on Wednesday that he didn't think the recent jump in oil prices was hurting the U.S. economy just yet, but it's getting close.The market was worrying that the surging oil prices would hurt global economic recovery. Adding to those concerns, the Portuguese government's two-year cost of borrowing hit the highest level since it joined the eurozone in a bond auction on Wednesday.Wednesday marked the two-year anniversary of the beginning of a bull market. On March 9, 2009, the Dow Jones Industrial Average closed at 6,547 and the Standard & Poor's 500 Index closed at 677. The Dow is back above 12,000 now and the S&P 500 index has almost doubled.Meanwhile, the wholesale report was slightly positive, but still failed to boost the market. According to the U.S. Commerce Department, the wholesale inventories climbed 1.1 percent in January. Sales at the wholesale level rose 3.4 percent, the largest gain since November 2009.Economists expected that as businesses kept expanding, demands for products would continue to grow. And larger sales may also encourage businesses to keep restocking their shelves and boost factory production.According to the report, a 10.6-percent rise in demand for petroleum helped lift sales, reflecting higher oil and gas prices.While some investors were concerned that surging oil prices might have a negative impact on economy, some others believed the boost in sales and inventories in January hinted that the economy could withstand the impact.The Dow Jones industrial average lost 1.29 points, or 0.01 percent, to 12,213.09. The Standard & Poor's 500 Index was down 1. 80 points, or 0.14 percent, to 1,320.02. The Nasdaq declined 14.05 points, or 0.51 percent, to 2,751.72.

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.