kpearson writes "Distributed.net's 8-year-old OGR-25 distributed computing project has just proven conclusively that the predicted shortest 25-mark Golomb ruler is optimal. 'The total length of the ruler is 480, with marks at positions: 0 12 29 39 72 91 146 157 160 161 166 191 207 214 258 290 316 354 372 394 396 431 459 467 480. (This ruler may alternatively be expressed in terms of the distance between those positions, which is how dnetc displays them: 12-17-10-33-19-...).' 124,387 people participated in the project and two people found the shortest ruler, one on October 10, 2007 and the other on March 24, 2008."

Nick Kilkenny sends us an AP article on the imminent shutdown of the US analog cellular network, now 24 years old. The network is scheduled to go dark on Feb. 18, 2008; some users, such as OnStar, are stopping analog service at the end of this year. Here's a list of devices and industries that will be affected by the shutdown. (Cellular telephony won't be affected much.) "The shutdown date has been known years in advance, but some industries appear to have a had a problem updating their technologies and informing their customers in advance... General Motors Corp., which owns OnStar, started modifying its cars after the 2002 decision by the Federal Communications Commission to let the network die, but some cars made as late as 2005 can't use digital networks for OnStar, nor can they be upgraded. For some cars made in the intervening years, GM provides digital upgrades for $15." Update: 12/22 22:25 GMT by KD : Replaced two registration-required links.

An anonymous reader writes "There are reports that satellites have aided scientists in confirming why the Aurora Borealis (Northern Lights) exists. 'New data from NASA's Themis mission, a quintet of satellites launched this winter, found the energy comes from a stream of charged particles from the sun flowing like a current through twisted bundles of magnetic fields connecting Earth's upper atmosphere to the sun. The energy is then abruptly released in the form of a shimmering display of lights.'"

cruocitae writes "Three of the MPlayer developers just gave an interview, talking about the "mysterious" versioning system of their software and shared a few secrets about the upcoming releases, for example some words about the long-awaited Windows GUI, and of course, DVD menus. Project integrity also was a subject.."

OffTheLip writes "The US is planning to build a permanent lunar base which will support future visits to Mars. The living conditions on the moon presents a variety of challenges from medical to construction. Contingency planning would be critical but some feel the challenges presented on the moon will be less than Mars. The moon is closer to Earth, the atmosphere is less harsh and, unlike Mars, water does not exist. Is this the start of the next space race?"