Theosis sends word that an astronomer at the University of Rochester and his colleagues have made the surprise discovery that Alcor, one of the brightest stars in the Big Dipper, is actually two stars; and it is apparently gravitationally bound to the four-star Mizar system, making the whole group a sextuplet. This would make the Mizar-Alcor sextuplet the second-nearest such system known. The discovery is especially surprising because Alcor is one of the most studied stars in the sky. The Mizar-Alcor system has been involved in many "firsts" in the history of astronomy: "Benedetto Castelli, Galileo's protege and collaborator, first observed with a telescope that Mizar was not a single star in 1617, and Galileo observed it a week after hearing about this from Castelli, and noted it in his notebooks... Those two stars, called Mizar A and Mizar B, together with Alcor, in 1857 became the first binary stars ever photographed through a telescope. In 1890, Mizar A was discovered to itself be a binary, being the first binary to be discovered using spectroscopy. In 1908, spectroscopy revealed that Mizar B was also a pair of stars, making the group the first-known quintuple star system."

An anonymous reader writes "A team at NIST (the National Institute of Standards and Technology) used berylium ions, lasers and electrodes to develop a quantum system that performed 160 randomly chosen routines. Other quantum systems to date have only been able to perform single, prescribed tasks. Other researchers say the system could be scaled up. 'The researchers ran each program 900 times. On average, the quantum computer operated accurately 79 percent of the time, the team reported in their paper.'"

nandemoari writes "Would-be Windows 7 users have been warned to change a default setting which could leave them vulnerable to attack via bogus files. As a result, Microsoft is taking flak for failing to correct a problem found in previous editions of Windows. The issue involves the way Windows Explorer displays filenames. In all editions of Windows after Windows 98, the default setting hides the filename extension (which identifies what type of file it is). This means that a Word file titled 'partyinvite.doc' will show up in Windows Explorer as simply 'partyinvite'. The only exception to this rule is if Windows does not recognize the file type. The reason for this setting is that it makes for a less cluttered look and avoids filling the screen with redundant detail. However, a flaw in the way it works leaves it liable to exploitation by hackers. They can take an executable file (which can do much more damage to a computer when opened) and disguise it by calling it 'partyinvite.doc.exe.'"

Ian Lamont writes "A Microsoft-sponsored report that describes a hidden "Apple tax" has fallen flat among the technology press. Roger Kay's report (PDF) compares various PC and Mac configurations, and claims an all-Apple household's costs would add up to an extra $3,367 over five years. Tech columnists and bloggers have slammed the comparisons and claims made in the report — even Mac-baiter John C. Dvorak calls it propaganda. However, some Mac fans still see a pro-Microsoft press conspiracy. Even if the comparisons are questionable, Kay's report and the accompanying television ads have clearly struck a nerve among the Mac faithful." Meanwhile, Linux users everywhere are scratching their heads.

Throw away your soap, detergent, and personal hygiene, the Japanese have invented odor-free underwear. Koichi Wakata, a Japanese astronaut living in the International Space Station, is testing the underwear created by textile experts at Japan Women's University in Tokyo. The shorts are designed to kill bacteria, absorb water, insulate the body and dry quickly. They also are flame-resistant, and anti-static. "The other astronauts become very sweaty, but he doesn't have any sweat. He didn't need to hang his clothes to dry. He can wear his trunks (underwear) more than a week," said Koji Yanagawa, an official with the Japanese Aerospace Exploration Agency.