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."

bckspc writes "The Committee to Protect Journalists has published their annual census of journalists in prison. Of the 136 reporters in prison around the world on December 1, 'At least 68 bloggers, Web-based reporters, and online editors are imprisoned, constituting half of all journalists now in jail.' Print was next with 51 cases. Also, 'Freelancers now make up nearly 45 percent of all journalists jailed worldwide, a dramatic recent increase that reflects the evolution of the global news business.' China, Iran, Cuba, Eritrea, and Burma were the top 5 jailers of journalists." rmdstudio writes, too, with word that after the last few days' protest there, largely organized online, the government of Iran is considering the death penalty for bloggers and webmasters whose reports offend it.

al0ha writes "In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known 'northern lights' in the solar system, flickering in shape and brightness high above the ringed planet. The new video reveals changes in Saturn's aurora every few minutes, in high resolution, with three dimensions. The images show a previously unseen vertical profile to the auroras, which ripple in the video like tall curtains. These curtains reach more than 1,200 kilometers (750 miles) above the edge of the planet's northern hemisphere."

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.'"