A study has found that everybody has a unique body odor, like their fingerprints, that could be used as an unique identifier. The study showed that a persons unique odor stayed the same even if they varied their diet with strong smelling foods such as garlic and spices. "These findings indicate that biologically-based odorprints, like fingerprints, could be a reliable way to identify individuals," said Monell chemist Jae Kwak. I would have thought that hundreds of years of dogs tracking people would have proved this, but it's nice to know that science has figured it out officially now.

AcidAUS writes "Last week's bust of the largest spam operation in the world has had no measurable impact on global spam volumes. The spam gang, known by authorities and security experts as HerbalKing, was responsible for one-third of all spam, the non-profit antispam research group Spamhaus said." The article speculates that the operators of HerbalKing simply passed on to associates the keys to the automated, 35,000-strong botnet, and the spam flow didn't miss a beat.

Science News reports on a paper to be published in Physical Review Letters in which an international team of researchers describes their computer simulation of the most violent collision imaginable: two black holes colliding head-on at nearly light-speed. Even in this extreme scenario, Roger Penrose's weak cosmic censorship hypothesis seems to hold — the resulting black hole (after the gravitational waves have died down) retains its event horizon. "Mathematically, 'naked' singularities, or those without event horizons, can exist, but physicists wouldn't know what to make of them. All known mechanisms for the formation of singularities also create an event horizon, and Penrose conjectured that there must be some physical principle — a 'cosmic censor' — that forbids singularity nakedness ..."

Meshach writes "Over at the Linux Journal, Doc Searles is noting that today marks 17 years since Linus posted to Usenet, starting Linux (post). As a Linux user at work and at home I say, thanks Linus!" The anniversary is also featured on the top page of the Encyclopedia Britannica.

With the entry to sub-orbital flight, and even orbital flight, becoming ever so slightly easier, the obvious thought of space porn kicks in. Who wouldn't want to see two or more people going at it like rabbits in a weightless environment (or at least trying to go at it like rabbits in a weightless environment)? Sadly, Virgin Galactic has turned down a $1 million offer to do just that. The offer was made by an unidentified party who was willing to put the money up front to do a space porn movie. Considering that a flight aboard VG costs $200,000 for a two-hour flight, $1 million doesn't seem too bad. Though how much you could actually do and perform in two hours is debatable. And what if one or more of the actors gets sick?