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You can think of NASA's Discovery program as a sort of outer-space American Idol: every few years the agency invites scientists to propose unmanned planetary missions. The projects have to address some sort of fundamental science question, and (this is the tough part) they have to be relatively cheap to pull off — say, half a billion dollars or so. Then the proposals go through a grueling competition before judges who aren't as nasty as Simon Cowell but who are every bit as tough. The one left standing at the end gets the equivalent of a recording contract: NASA supplies the funding and the launch vehicle, and away the winner goes — to orbit Mercury, as the Messenger spacecraft is doing right now; or to rendezvous with a couple of asteroids, as the Dawn mission will start doing this July; or to smash into a comet on purpose, a feat achieved by Deep Impact in 2005, a mission not to be confused with the movie of the same name. Now it's time for the next contenders. NASA has just announced that the first round of the latest Discovery competition is over, with three entries out of 28 moving on to the finals. They are, in increasing distance from Earth: the Geophysical Monitoring Station (GEMS) lander, which would use seismometers to study the interior of Mars; the Comet Hopper, which would do just that, leaping from place to place across the surface of Comet 46P/Wirtanen to see how different parts of the tumbling body react to heating by the sun; and the Titan Mare Explorer (TiME), which would plop into a sea of liquid hydrocarbons on Saturn's moon Titan — the first oceangoing vessel ever to set sail on another world. If you had to come up with a theme that ties all three missions together, it would be "origins." The Titan explorer, for example, will be studying a place that — in a crude way, at least — resembles the early planet Earth at a time when life arose here. Titan, with a thick atmosphere and a bizarro-world form of weather featuring toxic winds and hydrocarbon rain, is home to a mix of complex chemistry, complete with organic molecules. The oceans provide a medium in which the molecules can move around and interact with each other. It's even conceivable, though clearly a long shot, that some form of microscopic life already exists on this frigid moon. The Mars lander, by contrast, would visit a place where the seas — plain water in this case — vanished long ago. But the mission of GEMS goes far deeper than that. By analyzing Marsquakes on the Red Planet, GEMS will try to get a handle on what the interior of Mars is like. Scientists don't currently know whether the planet's core is liquid, like Earth's, or solid, or some mushy consistency in between. It all depends on how efficiently Mars has cooled since it formed 4.5 billion years ago, and that depends in turn on the planet's internal structure. "That's the mission," says Bruce Banerdt, of NASA's Jet Propulsion Laboratory, the lead scientist for GEMS. "We want to understand how Mars was built." Along with sensitive seismographic equipment, GEMS will drill down about 20 ft. (6 m) with a thermometer-equipped probe, trying to figure out how quickly the temperature rises with depth. "That will let us extrapolate all the way down to the center," Banerdt says, "which will tell us how fast Mars is cooling."

SAN FRANCISCO, April 27 (Xinhua) -- Apple Inc. on Wednesday denied the alleged location-tracking practice of its mobile operating system, saying it will release software updates to make iPhone store less location information to quell public concerns over privacy.CLARIFICATION"Apple is not tracking the location of your iPhone. Apple has never done so and has no plans to ever do so," the company said in a statement."Users are confused, partly because the creators of this new technology (including Apple) have not provided enough education about these issues to date."According to the statement, the location data researchers saw on iPhone is a database of Wi-Fi hotspots and cell towers around users' current location that Apple is maintaining to help iPhone rapidly and accurately calculate its location when requested. It noted Apple cannot locate iPhone users based on Wi-Fi hotspot and cell tower data as the information is in an anonymous and encrypted form.Apple admitted that part of the location data (Wi-Fi hotspots and cell towers) is backed up on iTunes, which means it could be possible that people with access to iPhone users'computer may get their location information. It said a software update has been planned to cease the backing-up.It is also planning to provide an update to limit the data storage on iPhone, in response to questions that the device has been storing location data since the release of iOS 4 operating system last June.Apple said it is a bug that iPhone keeps storing location data even if its location services are disabled, noting it will fix this through a software update in the coming weeks.The company also reiterated its focus on personal information security and privacy."Pretty much what I expected at this stage. The response is measured and the update should fix the problem," Alasdair Allan, one of the two British researchers who first announced the discovery of stored location data on iPhone, said on his Twitter account.ALLEGATIONThe statement on Wednesday is Apple's first official response to the location-tracking allegations.Worries on the iPhone tracking issue first surfaced last Wednesday when two British researchers announced at a technology conference in California that iPhone has been collecting users' location information and storing the data since June 21, 2010.Last Friday, The Wall Street Journal reported its security analysts had found that Apple's iPhone and smartphones running Google's Android operating system regularly transmit users' locations back to the two companies respectively, which is part of their race to build databases capable of pinpointing people's locations via smartphones.The newspaper then reported on Sunday that its analysts had also found iPhone is collecting and storing user's location data even when location services are turned off.PRESSUREThe Cupertino, California-based company has been facing mounting pressure from lawmakers, customers as well as media reports following the revelations.The U.S. House Energy and Commerce Committee on Monday sent letters to six developers of mobile device operating systems, including Apple and Google, demanding Apple's explanation on implications of alleged tracking for individual privacy and federal communications policy.Also on Monday, Minnesota Senator Al Franken, chairman of the U. S. Senate Judiciary Subcommittee on Privacy, Technology and the Law, announced he had scheduled a mobile privacy hearing on May 10 and asked representatives from Apple and Google to speak at the hearing.Meanwhile, Lisa Madigan, Attorney General of U.S. state of Illinois, on Monday called for a meeting with Apple and Google executives on the location-tracking reports, citing her ongoing effort to protect consumers' personal information online.Last Friday, two iPhone users filed a class action suit against Apple in Tempa, Florida, accusing the company of invasion of privacy and computer fraud and seeking a judge's order to bar the alleged data collection.Last Thursday, U.S. congressman Edward Markey asked Apple CEO Steve Jobs to make a response within 15 business days or no later than May 12, saying "Apple needs to safeguard personal location information of its users to ensure that an iPhone doesn't become an iTrack."On Saturday, Markey called for a congressional investigation into the privacy practices of Apple and Google. In a statement, he made clear that he thinks the data collection is potentially dangerous, saying predators could have hacked into an iPhone or Android phone to find out children's location information.Apple is also reportedly being investigated in South Korea, France, Germany and Italy over the alleged tracking practice.

HOUSTON, May 2 (Xinhua) -- The Offshore Techonology Conference, one of the world's largest offshore technology shows, kicked off here Monday.The five-day event, which attracted an estimated 72,000 victors from all around the world, not only provided a platform for the about 2,400 participating companies from 40 countries to lure visitors with their newest products and technologies, but also for the them to share insights and discuss issues the industry is facing.On Monday, a number of companies, including Halliburton and Baker Hughes, received the Spotlight on New Technology Award by the OTC for their new products and solutions.Founded in 1969, the annual Offshore Technology Conference is the world's foremost event for the development of offshore resources in the fields of drilling, exploration, production, and environmental protection. OTC is held annually at Reliant Center in Houston.

HEFEI, Feb. 2 (Xinhua) -- Chinese Premier Wen Jiabao has visited farmers and workers in Dabieshan Mountain area, an old revolutionary base in east China's Anhui Province, to extend new year greetings ahead of the Spring Festival, which falls on Thursday.On Tuesday, Wen went to the area's Jinzhai County, once an important Red Army revolutionary base, to learn about the local economic and social development situation.He visited Zhaoyuan Village and called in on farmer Zhao Mengqi. Wen chatted with Zhao, asking about his family's income and their preparations for the lunar new year.Zhao works as a migrant worker in Wujiang City, an economically-developed part of Jiangsu Province. His son and daughter-in-law work in Shanghai. They returned home on the eve of the Spring Festival."With the income we earn working in cities and what we earn growing crops, our family income has increased and we have rebuilt and renovated our house," Zhao told Premier Wen. A paved road now allows buses to reach the village, Zhao added.Wen said, "Only when the people living in old revolutionary bases live better lives can we feel relieved."At farmer Zhao Kongying's home, Wen joined the family in making "yuanzi," a glutinous rice ball traditionally eaten during the Spring Festival.Wen later went to Hetang Village. There he visited villager Yu Shuhua's home and urged the local government to provide more help to needy people to ensure they have a happy lunar new year.At dinner time, he went to villager Zhang Jiasheng's home, joining the family to prepare dinner. He wore an apron and made a soup for the family.During the dinner, Zhang told Wen the village is rich with chestnuts, tea and traditional Chinese medicine, adding that tourism is also a source of income for the village.Wen said help and support for the old revolutionary base should be boosted, so that local people can lead happier lives.Wen also extended new year greetings to workers at the Meishan hydropower station in Jinzhai County.At retired worker Wan Benrong's home, Wen asked about the family's living conditions and their preparations for the lunar new year.After being told the couple received an extra 140 yuan each of monthly pension this year, Wen said the government has increased the basic pension for retired workers seven times since 2005."Our objective is to make you feel secure," Wen said.

BEIJING, Jan. 30 (Xinhua) -- Chinese President Hu Jintao said Sunday more attention should be paid to raising people's living standards while striving for economic growth.Hu made the remarks at a symposium with non-Communist parties and individuals to mark the Spring Festival, or the Lunar New Year, which falls on Feb. 3 this year.Hu urged the parties and social groups to pursue the people-first principle and help the government to better serve the people."We should always make the improvement of people's lives an important starting point in promoting development in a scientific way and enhancing social harmony," Hu said.Chinese President Hu Jintao (C), also general secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission, delivers an important speech at a symposium with non-Communist parties and individuals to mark the Spring Festival in Beijing, capital of China, Jan. 30, 2011.He said the government would focus on the transformation of its economic development pattern, and try to achieve its economic targets this year, which is also the start of the 12th five-year period (2011-2015).Hu hoped the non-Communist parties and individuals would concentrate on promoting scientific development and put forward practical suggestions for achieving comprehensive, coordinated and sustainable development.This year marks the 90th anniversary of the founding of the Communist Party of China (CPC).Hu said the past 90 years had proved that unison of ideas, targets and actions in the multi-party cooperation system under CPC leadership guaranteed the country to achieve progress in revolution, development and reform.Hu expressed appreciation for the contributions of non-Communist parties and individuals to social and economic development last year."We must rely on all Chinese people, including non-Communist parties, societies, ethnic groups and people from all walks of life and in different strata to achieve this year's goals for economic and social development," said Hu.At the event, Hu also extended New Year's greetings and best wishes to all people from the non-Communist parties and the All-China Federation of Industry and Commerce and those without party affiliations.Non-Communist party leaders at the gathering gave opinions on issues such as multi-party cooperation, rural social security system, water conservation, strategic emerging industries, education and cultural exchanges across the Taiwan Straits.The meeting was chaired by Jia Qinglin, chairman of the National Committee of the Chinese People's Political Consultative Conference. Vice President Xi Jinping and Vice Premier Li Keqiang were present at the gathering.