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WASHINGTON, March 25 (Xinhua) -- NASA's Stardust spacecraft depleted fuel and ceased operation on Thursday after a 12-year run, the U.S. space agency said Friday."This is the end of the spacecraft's operations, but really just the beginnings of what this spacecraft's accomplishments will give to planetary science," said Lindley Johnson, Stardust-NExT and Discovery program executive at NASA headquarters in Washington."The treasure-trove of science data and engineering information collected and returned by Stardust is invaluable for planning future deep space planetary missions."Artist's concept of Stardust spacecraft nearing EarthLaunched on Feb. 7, 1999, Stardust flew past the asteroid named Annefrank and traveled halfway to Jupiter to collect the particle samples from the comet Wild 2. The spacecraft returned to Earth's vicinity to drop off a sample return capsule eagerly awaited by comet scientists.NASA re-tasked the spacecraft as Stardust-NExT to perform a bonus mission and fly past comet Tempel 1, which was struck by the Deep Impact mission in 2005. The mission collected images and other scientific data to compare with images of that comet collected by the Deep Impact.The Stardust-NExT met all mission goals, and the spacecraft was extremely successful during both missions. From launch until final rocket engine burn, it travelled approximately 3.54 billion miles.After the mileage logged in space, the Stardust team knew the end was near for the spacecraft. With its fuel tank empty and final radio transmission concluded, the most traveled comet hunter will move from NASA's active mission roster to retired."This kind of feels like the end of one of those old western movies where you watch the hero ride his horse toward the distant setting sun -- and then the credits begin to roll," said Stardust-NExT project manager Tim Larson from NASA's Jet Propulsion Laboratory in Pasadena, California. "Only there's no setting sun in space."

SINGAPORE, April 21 (Xinhua) -- Singapore's first locally-built satellite has been officially launched from a space center in India after a four-year delay, Singapore media reported on Thursday.The 105 kg fridge-size X-Sat was one of three riding on Isro's Polar Satellite Launch Vehicle (PSLV-C16) from the Satish Dhawan Space Center in India on Wednesday. It will be used to take photographs to measure soil erosion and environmental changes on earth, local daily Straits Times said.The launch at 12:42 p.m. on Wednesday was the 18th successful lift-off since the maiden flight of PSLV in 1994.The satellite was designed and built by Singapore's Nanyang Technological University and Singapore's defense research body DSO National Laboratories.Now in orbit, the satellite is establishing communication contact with the ground control in Nanyang Technological University, a process that is likely to take up to a week.The launch capped more than nine years of hard work by scientists and engineers. It also makes Singapore one of the first countries in Southeast Asia to have its own satellite in space. Previous satellite launched by Singapore involved construction efforts by foreign companies.

BEIJING, May 21 (Xinhua) -- China may see increased planting acre of early rice this year, though drought has not been relieved in some areas, said a statement on the website of the Ministry of Agriculture on Saturday.China is expected to plant 88.5 million Mu (5.87 million hectares) of early rice this year, about 1.6 million Mu more than the previous year, thanks to soaring rice prices and policy incentives, the statement said.However, drought continues in Hubei Province, Poyang Lake areas in Jiangxi Province, Dongting Lake areas in Hunan Province and Leizhou Peninsular in Guangdong Province, the statement said.The drought has affected about 3 million Mu of paddies in Hubei in the middle reaches of the Yangtze River, the statement said.The statement urged local agricultural departments to help facilitate paddy management, as strong rains were forecast for southern China from Friday to next Tuesday.The middle and lower reaches of the Yangtze River received about 40 to 60 percent less rain this year than in previous years -- this year being the least amount of rain in the past 50 years, said the State Flood Control and Drought Relief Headquarters.

SAN FRANCISCO, March 29 (Xinhua) -- Computer networking equipment giant Cisco Systems Inc. on Tuesday announced the intent to buy privately-held software company newScale Inc., in a move to complement and expand its offerings in cloud computing.Based in San Mateo in the U.S. state of California, newScale provides software that delivers a service catalog and self-service portal for information technology (IT) organizations to select and quickly deploy cloud services within their businesses.Founded in 1999, the company now has more than two million users worldwide, including 20 percent of the Fortune 50 companies, according to information posted on newScale's website."With the acquisition of newScale, Cisco will be able to accelerate the deployment of cloud services through a service catalog and self-service portal that allows customers to easily manage their IT infrastructures," Parvesh Sethi, Cisco's senior vice president, noted in a statement.Cisco said it expects to close the deal in the second half of its fiscal year 2011, without disclosing financial terms.

LOS ANGELES, April 8 (Xinhua) -- NASA's Wide-field Infrared Survey Explorer (WISE) has discovered a rare asteroid that traces out a horseshoe shape relative to Earth, the Jet Propulsion Laboratory (JPL) said on Friday.Unlike most near-Earth asteroids (NEAs) that have eccentric, or egg-shaped, orbits that take the asteroids right through the inner solar system, the new object has an orbit that is almost circular such that it cannot come close to any other planet in the solar system except Earth, JPL said.However, even though the asteroid rides around with Earth, it never gets that close, said JPL in Pasadena, Los Angeles.As the asteroid approaches Earth, the planet's gravity causes the object to shift back into a larger orbit that takes longer to go around the sun than Earth. Alternately, as Earth catches up with the asteroid, the planet's gravity causes it to fall into a closer orbit that takes less time to go around the sun than Earth, according to JPL.The asteroid therefore never completely passes our planet. This slingshot-like effect results in a horseshoe-shaped path as seen from Earth, in which the new object, designated 2010 SO16, takes 175 years to get from one end of the horseshoe to the other, JPL said."The origins of this object could prove to be very interesting, " said Amy Mainzer of JPL, the principal investigator of NEOWISE, which is the asteroid- and comet-hunting portion of the WISE survey mission. "We are really excited that the astronomy community is already finding treasures in the NEOWISE data that have been released so far."JPL manages and operates the WISE for NASA's Science Mission Directorate, Washington.

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