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LOS ANGELES, June 8 (Xinhua) -- NASA's Mars Exploration Rover Opportunity is heading toward "Spirit Point" on the rim of a large crater, a long-term destination that the rover has been trying to reach for nearly three years, the Jet Propulsion Laboratory (JPL) announced on Wednesday.Opportunity has moved toward the crater, Endeavour, since climbing out of Victoria crater in August 2008.Having driven 11 miles (18 kilometers), the rover has about two miles (about three kilometers) to go before reaching the rim of Endeavour, said JPL in Pasadena, Los Angeles.Rover team members last week selected "Spirit Point" as the informal name for the site on the rim where Opportunity will arrive at Endeavour crater. The choice commemorates Opportunity's rover twin, Spirit, which has ended communication and finished its mission."Spirit achieved far more than we ever could have hoped when we designed her," said Steve Squyres of Cornell University, Ithaca, New York, principal investigator for the rovers. "This name will be a reminder that we need to keep pushing as hard as we can to make new discoveries with Opportunity. The exploration of Spirit Point is the next major goal for us to strive for."Endeavour offers the setting for plenty of productive work by Opportunity. The crater is 14 miles (22 kilometers) in diameter -- more than 20 times wider than Victoria crater, which Opportunity examined for two years. Orbital observations indicate that the ridges along its western rim expose rock outcrops older than any Opportunity has seen so far. Spirit Point is at the southern tip of one of those ridges, "Cape York," on the western side of Endeavour.Opportunity and Spirit completed their three-month prime missions on Mars in April 2004. Both rovers continued for years of bonus, extended missions. Both have made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life.NASA's JPL, a division of the California Institute of Technology in Pasadena, manages the Mars Exploration Rover Project for the NASA Science Mission Directorate, Washington.

BEIJING, July 26 (Xinhuanet) -- Seven of the 20 top selling American prescription drugs will lose their patents by the end of next year, making way for less expensive generic versions, according to media reports.It's a shift that could save consumers billions of dollars -- assuming those big-ticket medications are willing to give up a trusted brand name for an off-label replacement.The prices of medications such as cholesterol-fighting Lipitor and blood thinner Plavix are expected to go down significantly, according to the U.S. Food and Drug Administration (FDA).Lipitor will lose its patent in November. When that patent expires, people are advised to buy atorvastatin, the generic equivalent. Other brand names include the anti-psychotic Zyprexa and the rheumatoid arthritis and psoriasis drug Enbrel, of which the patent will expire in October and October of next year, respectively.Over the next 10 years, an estimated 120 more brand-name prescription drugs will lose their patents in the U.S.

JERUSALEM, July 25 (Xinhua) -- A new study carried out by a Tel Aviv University researcher indicates that the common backache may not only be caused by bad positions or aging, but also by your genes.Prof. Gregory Livshits of the Sackler Faculty of Medicine says that genes play a major role in back pain, especially in the lower back, and in spinal deterioration.In a decade-long project with 2,500 identical and non-identical twins, Livshits found that, in one Arab family, the same back problems appeared in all the members of the family, whether young or old.According to the study, non-identical twins were three times more likely to have back pain, while identical twins were six times more likely to have the same back problems.Livshits believes the discovery of the link between back pains and genes could lead to much better treatment.The research was developed in collaboration with a team of scientists at Kings College, London, led by Prof. Tim Spector and Dr. Fran Williams and was recently published in the journal " Annals of the Rheumatic Diseases."In order to better investigate the genetic causes for one of the world most common pains, Livshits and his colleagues hope to put together an international consortium of research groups.

LOS ANGELES, June 29 (Xinhua) -- The war on cloud intensified as Microsoft Office announced its decision on Tuesday to go cloud in an attempt to compete with its immediate but not last competitor, Google Docs.Microsoft holds a virtual monopoly on office productivity software. Most computer users in the world use the Office software for word processing, spreadsheet, presentation and other purposes. However, Microsoft Office faces a strong enemy -- Google Docs, which provides cloud service, that means users do not have to purchase any software to be installed on their computers. If they go online, they can start use the application, and they do not need to worry about their files, because the files also go with the cloud, and users can get access to their files at anytime, anywhere.The cloud-based Office 365 is designed for the mobile age when people go with their software and documents.The actual features and functionality of the tools have a lot of bearing on which productivity suite users choose. The Word Web App is more visually appealing and polished than its Google counterpart, but overall the two seem roughly equivalent in features.When tested on a sample presentation in both the PowerPoint Web App and Google Docs Presentation, the PowerPoint Web App immediately presented with a diverse selection of attractive themes to choose from, but Google defaulted to plain black text on a plain white background.On slide and image, in Google Presentations, the image filled the whole slide but the PowerPoint Web App was smart enough to size the image automatically.When push comes to shove, the features of the Office Web Apps in Office 365 are pretty much the same as what Google Docs has to offer. However, Microsoft makes key features easier to get to, and works more intuitively. For users already familiar with Microsoft Office, the Office Web Apps version is easy to use.Both Office 365 and Google Docs are Web-based platforms, and they will work from any Web browser. Google Docs excels in the Chrome browser while Microsoft Office 365 works best in Internet Explorer. It makes sense that each would make sure that their online productivity tools are optimized for performance and functionality in their own browser.Collaboration in real time is the primary selling point of Google Docs, which can be shared with any other Google account. The users who share a file can all access and work with it simultaneously. Each user is assigned a unique color so users can easily identify who is making changes to what.But in the price war, Microsoft can not beat Google Docs. Office 365 starts at six dollars per user per month for the Professional and Small Business plan. The Medium Business and Enterprise plans range from 10 to 27 dollars per user per month. But the Google Docs is free.Microsoft also faces a challenge on how to go cloud while still keep the computer-based Office software.Statistics showed that nearly nine of every 10 office computers runs one of the 14 versions of Office the company has released since the software's launch in 1989. The company now needs to convince those computer users, estimated at about one billion, to switch to Office in the cloud without disrupting the legacy version that is financing the transition.The growing cloud market is profitable. The International Data Corp. projected the market for cloud-computing services and software is expected to grow more than 27 percent annually over the next five years and reach 73 billion dollars by 2015.It is estimated that by 2015 one of every seven dollars spent on technology will be connected with cloud computing and the winners of the cloud platform wars will likely be the new power brokers of the IT industry.It is reported that Salesforce.com has added a communication technology called Chatter to its service to allow clients to communicate within its sales management cloud service. Amazon's Elastic Cloud has attracted enterprise customers because of its ability to scale up capacity to match peaks in client demand.By 2015, it is estimated that software-oriented cloud services will account for roughly three-quarters of all spending on public cloud services. Enditem

WASHINGTON, Aug. 17 (Xinhua) -- Latest research shows that the Moon could be younger than previous estimates. The findings were published online Wednesday in the Nature journal.The prevailing theory of the Moon's origin is that it was created by a giant impact between a large planet-like object and the proto-Earth. The energy of this impact was sufficiently high that the Moon formed from melted material that was ejected into space. As the Moon cooled, this magma solidified into different mineral components. Analysis of lunar rock samples thought to have been derived from the original magma has given scientists a new estimate of the Moon's age.According to this theory for lunar formation, a rock type called ferroan anorthosite, or FAN, is the oldest of the Moon's crustal rocks, but scientists have had difficulty dating FAN samples. The research team used newly refined techniques to determine the age of a sample of FAN from the lunar rock that was brought back to Earth by the Apollo 16 mission in 1972.The team analyzed the isotopes of the elements lead and neodymium to place the FAN sample's age at 4.36 billion years. This figure is significantly younger than earlier estimates of the Moon's age that range as old as the age of the solar system at 4. 568 billion years. The new, younger age obtained for the oldest lunar crust is similar to ages obtained for the oldest terrestrial minerals -- zircons from western Australia -- suggesting that the oldest crusts on both Earth and Moon formed at approximately the same time, and that this time dates from shortly after the giant impact.This study is the first in which a single sample of FAN yielded consistent ages from multiple isotope dating techniques. This result strongly suggests that these ages pinpoint the time at which the sample crystallized."The extraordinarily young age of this lunar sample either means that the Moon solidified significantly later than previous estimates, or that we need to change our entire understanding of the Moon's geochemical history," Carnegie Institute of Science's geochemist and study author Richard Carlson said.

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