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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.

SAN FRANCISCO, May 6 (Xinhua)-- Latest research released Friday shows that Google Android has become the No.1 smartphone platform in the United States in the first quarter as more smartphone manufacturers have adopted the operating system.During the three months ending in March, Google Android grew 6. 0 percentage points to 34.7 percent market share, among the 72.5 million U.S. smartphone users, reported comScore, an Internet marketing research company.The number of smartphone users increased by 15 percent on a quarter-on-quarter basis, said the research.Research in Motion, developer of Blackberry smartphones, ranked second with 27.1 percent, a slide of 4.5 percentage points on a quarter-on-quarter basis. Apple grew 0.5 points to 25.5 percent share, followed by Microsoft (7.5 percent) and Palm (2.8 percent).According to the research, 234 million Americans age 13 and older used mobile devices in the first quarter. Samsung ranked as the top handset maker with 24.5 percent of U.S. mobile subscribers, and LG ranked second with 20.9 percent share, followed by Motorola (15.8 percent) and RIM (8.4 percent). Apple continued to gain share following the launch of the Verizon iPhone, growing by 1.1 percentage points to 7.9 percent of subscribers.On mobile content use, 68.6 percent of U.S. mobile subscribers used text messaging on their mobile device in March. Browsers were used by 38.6 percent of subscribers (up 2.2 percentage points), while downloaded applications were used by 37.3 percent (up 2.9 percentage points).Accessing of social networking sites or blogs increased 2.6 percentage points, representing 27.3 percent of mobile subscribers. Playing games comprised 25.7 percent of the mobile audience, while listening to music represented 17.9 percent, said the report.

JERUSALEM, May 8 (Xinhua) -- Israeli researcher Jacob (Koby) Scheuer, from the Tel Aviv University (TAU) School of Electrical Engineering, has developed a nano-scale gyroscope, the Ha'aretz daily reported Sunday.Scheuer developed a new optic-fiber nano-sensor four years ago, along with an optic gyroscope that works in conjunction with the sensor. As he developed the devices, it occurred to him that his discovery could be harnessed to surgical needs, virtual reality, or communications, said the report."What we developed here is an optic gyroscope," Scheuer told Xinhua in a recent interview on Sunday, "like the others, but the breakthrough is that we found a way to measure rotation in a very, very small device using the optic sensor."Optic gyroscopes emit light when they rotate, and change its wavelength when there is any change in the speed of rotation, making it possible to measure velocity and position by the differences in light.Scheuer's gyroscope, however, is so small in comparison to the others commonly used in planes, trains and vehicles, that it can be used in cell phones or watches and does not need satellite connection like the ubiquitous Global Positioning System.The applications of this gyroscope and optic sensor are almost endless, as Scheuer puts it."It can be a pill that you swallow and can move through your body to take pictures or release drugs in a localized area," the researcher explained, "or it can be used by a doctor to operate on a patient who is thousands of kilometers away.""Our gyroscope has complete independent navigation capability, which the others don't have," he stressed.Though the new optic gyroscope works in theory, it still hasn't been tried in out in reality. "It will take some time until we can empirically demonstrate our work, I would say about three to five years," Scheuer added.Alongside the gyroscope, Scheuer continues to work on the optic sensor, whose applications can also be found in security, such as an information security system developed by Scheuer to safeguard online information that acts as a key bearer."When both parties have 'the key' it's virtually impossible to hack the information sent," Scheuer noted, terming the development as a "total paradigm change."

BEIJING, March 21 (Xinhuanet) -- A new device is being developed by American engineers to ease pain of blood sugar testing in diabetics, according to foreign media report last week.The upcoming device is the research target of a team of engineers at Arizona State University. It is specifically designed for patients with type1diabetes and type2 diabetes, according to a report in the "Journal of Diabetes Science and Technology,"  The traditional method of testing blood sugar levels involves painful pricks on the fingers to draw blood for testing. The inconvenient and painful process may somehow leave diabetics lax in their testing. The blood sugar levels, when poorly controlled, are very likely to trigger complications including heart disease, kidney disease and retinopathy.Unlike the old testing method, the new device could help people keep track of their blood sugar levels without the need to break the skin. It draws tears to measures the blood sugar levels in the fluid and gives just an accurate reading of blood sugar levels. "This new technology might encourage patients to check their blood sugars more often, which could lead to better control of their diabetes by a simple touch to the eye." said Jeffrey T. LaBelle, developer of the device.The new testing device has drawn great interest from investors due to its promising prospects. However, it still awaits a significant amount of testing before it can hit the market.

BEIJING, April 19 (Xinhuanet) -- The case in the Hollywood blockbuster "The Social Network" continues in real life.Twins Cameron and Tyler Winklevoss on Monday filed another appeal against their Harvard classmate and Facebook founder Mark Zuckerberg.The Winklevosses claim that the case needs to be reviewed by a special 11-judge panel in the latest appeal, after a three-judge panel of the 9th U.S. Circuit Court of Appeals ruled against the brothers last week.The twins initially claimed that Zuckerberg had stolen their idea for the website but agreed to drop their lawsuit in 2008 in exchange for 20 million dollars in cash and stock in the company.But later they discovered the stock was worth less than claimed at the time and sought to have the deal voided, the brothers said.

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