Air Force readies space plane for launch

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Air Force readies space plane for launch CAPE CANAVERAL, Fla. (UPI) -- The U.S. Air Force says it will launch an X-37B robotic space plane Friday, although it won't say exactly what the craft will be doing once it reaches orbit. The unmanned "mini-shuttle" is scheduled to lift off from Cape Canaveral, Fla., atop an Atlas 5 rocket in a launch window that will open at 3:39 EST, SPACE.com reported Wednesday. The launch will be the second in the Air Force's X-37B space plane program, but the first for this particular craft, the second one Boeing has built for the Air Force. The first X-37B was launched last April, returning to Earth in December after an apparently successful test flight lasting 225 days. However, the details and purpose of that mission -- like the scheduled flight of the second craft -- are classified. Looking like a miniature version of NASA's space shuttles, the X-37B is about 29 feet long and with a wingspan of 14. But unlike NASA's shuttles, the X-37B does everything autonomously without help or guidance from the ground. The space plane started out as a NASA project for an experimental test bed until funding for the project ran out in 2004. Handed over to the Defense Advanced Research Projects Agency, it was passed on to the Air Force in 2006. Copyright 2011 by United Press International
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Tiny cube may replace cellphone towers MURRAY HILL, N.J. (UPI) -- Researchers say unsightly, sky-high, cellphone towers dotting the U.S. landscape may someday be replaced by something no bigger than a Rubik's cube. Dubbed the lightRadio cube, the new device developed by Bell Labs is attracting interest from cellphone carriers around the world, The (Newark, N.J.) Star-Ledger reported Wednesday. Current cellphone antennas must be both large and tall because they rely on sending signals down and outward like an umbrella. Bell Labs say the lightRadio cube aims cellphone signals more directly, using far less power while providing 30 percent more capacity than current cellphone towers. Wireless researchers for Bell Labs scattered around the world took up the challenge of replacing the giant towers with something more compact, and Bell researchers in Stuttgart, Germany, came up with a solution: three 2-inch, stacked circuit boards for the antenna, radio and network connection that replaces the conventional antenna system connecting every cellphone call. Dozens of mobile carriers across the world have approached Alcatel-Lucent in Murray Hill, N.J., where Bell Labs is located, asking for demonstrations and trials, said Ken Wirth, president of Alcatel-Lucent's 4G/LTE wireless networks business. Five carriers in the United States, Europe and China are enrolled for trials by the end of this year and the company hopes to begin making the devices commercially available within 18 months, he said. Copyright 2011 by United Press International
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New camera can see the 'invisible' ROLLA, Mo. (UPI) -- Technology similar to that in airport body scanners could be used to detect everything from defects in aerospace vehicles to skin cancer, U.S. researchers say. Researchers at Missouri University of Science and Technology have developed a handheld camera that uses millimeter and microwave signals to non-intrusively peek inside materials and structures in real time, a university release said Wednesday. The compact system can produce synthetically focused images of objects at different distances in front of the camera while a laptop computer collects the signal and displays the image in real-time for review. The entire system, powered by a battery similar to the size used in laptops, can run for several hours. "Unlike X-rays, microwaves are non-ionizing and may only cause some heating effect," Reza Zoughi, professor of electrical engineering at Missouri S&T says. "However, the high sensitivity and other characteristics of this camera enable it to operate at a low-power level." The researchers say the technology could help medical professionals detect and monitor a variety of skin conditions in humans, including cancer and burns. It also has the potential to help Homeland Security personnel detect concealed contraband such as weapons or reduce the number of passenger pat downs at airports, they say. "In the not-so-distant future, the technology may be customized to address many critical inspection needs," Zoughi says. The research team completed the first prototype in 20907 and has spent the past three years decreasing its size while improving its overall efficiency, Zoughi says. Copyright 2011 by United Press International
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Study: E-mails reinforce rumors COLUMBUS, Ohio (UPI) -- The Internet doesn't make people more likely to believe political rumors, but one form of communication -- e-mail -- does tend to do so, a U.S. researcher said. "I think a lot of people will be surprised to learn that using the Internet doesn't necessarily promote belief in rumors," R. Kelly Garrett, assistant professor of communication at Ohio State University, said. "Many people seem to think that's self-evident," Not so, he said. "The Internet does make it easier to circulate rumors, but going online doesn't make us more gullible." However, e-mail is a special case, he said, and his study found people much more likely to believe false rumors in e-mails from friends and family, a OSU release reported Monday. People seem to be wary about rumors they read on Web sites and blogs, Garrett said, and are more likely to check these rumors to see if they are correct. "The problem is that we are more likely to let our defenses down when we're dealing with our friends, which is why e-mail can have such harmful consequences," he said. "We don't normally question what our friends tell us." Copyright 2011 by United Press International
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