Toren Altair recommends a story up on the Space Fellowship site that begins "NASA's Phoenix Mars Lander has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure as one passed near the lander. The Surface Stereo Imager ... caught a dust devil in action west of the lander in four frames shot about 50 seconds apart from each other. 'It was a surprise to have a dust devil so visible that it stood [out] with just the normal processing we do,' said Mark Lemmon of Texas A&M University, College Station, lead scientist for the stereo camera. 'Once we saw a couple that way, we did some additional processing and found there are dust devils in 12 of the images.'"

kahunak writes to alert us that GIMPS has announced that the 45th and 46th Mersenne primes have been confirmed. The EFF's $100,000 award, for the first prime over 10 million digits in length, will probably be claimed. (We discussed no. 45 when it was announced.)

An anonymous reader tips us to news that researchers at University of California, Berkeley, have successfully test driven a 60-foot bus that controlled its own steering. Sensors on the bus detected magnets that had been embedded in a San Leandro road, and it was able to reach stops within one centimeter of its desired position. Acceleration and braking during the test were controlled by a human operator, but the system is capable of handling those as well, and has done so on test courses. "... sensors mounted under the bus measured the magnetic fields created from the roadway magnets, which were placed beneath the pavement surface 1 meter apart along the center of the lane. The information was translated into the bus's lateral and longitudinal position by an on-board computer, which then directed the vehicle to move accordingly. For a vehicle traveling 60 miles per hour, data from 27 meters (88 feet) of roadway can be read and processed in 1 second. Zhang added that the system is robust enough to withstand a wide range of operating conditions, including rain or snow, a significant improvement to other vehicle guidance systems based upon optics."

aqui writes "A university student at Carleton is learning that no good deed goes unpunished. After hacking into what was probably a not-so-secure university network, this guy took the time to write a 16-page paper on his methods and sent it to the system admins. Sounds like White Hat behavior to me. Yes, he should have asked permission before trying, but throwing the book at the guy and wrecking his life with criminal charges (which stick for a long time) seems a little excessive. The university should spend money on hiring some admins with better computer skills and teaching skills rather than paying lawyers. In the Engineering department at my old university, the unofficial policy was that when you broke in, didn't damage anything, and reported the problem and how you broke in, they didn't charge you (if you maliciously caused damage, you usually faced academic sanctions). In some cases, the students were hired or they 'volunteered' for the summer to help secure the servers or fix the hole they found. The result was that Engineering ended up with one of the most secure systems in the university." Read on for the rest of aqui's comments.