A prolonged chill in the atmosphere high above the Arctic last winter led to a mobile, morphing hole in the ozone layer, scientists report in a new paper. It's just like the South Pole hole we all studied in school, but potentially more harmful to humans - more of us live at northern latitudes. Here are five things you need to know about it.
The world's largest astronomical facility has opened its eyes, turning nearly two dozen antennae toward the heavens to study the building blocks of the cosmos. The Atacama Large Millimeter/submillimeter Array consists of 20 radio antennae for now, but will contain 66 by 2013, giving it a higher resolution than the Hubble Space Telescope.
Micro air vehicles, or MAVs, make for a tantalising option for intelligence and surveillance agencies looking to surreptitiously gather information or deliver surveillance devices without being seen. But MAVs--usually modeled after small birds or insects-- are notoriously unstable in flight and difficult to manoeuvre in cluttered environments. So the Pentagon is handing out research contracts to make the DoD's little robotic bugs more stable by making them more bug-like. Specifically, the DoD wants big bulging bug eyes and hairy wings for its MAVs.
Iran's ambitious 1960s-styled plans to send a live monkey into space aboard one of the Islamic Republic's Kavoshgar-5 rockets have been suspended indefinitely, a top space official told Iranian state television today, which pretty much dashes any hopes that we might see a primate hurled into suborbital space before year's end.
Adventure-seekers can use all kinds of emergency beacon tech to help themselves get found in case they go missing - but in many cases, this requires sticking something in your pocket, from which it could conceivably fall out. A new antenna could instead be sewn right into your clothes, ensuring rescuers can find you so long as you're wearing something.
The only mammals that can fly are also the only mammals with a larynx that flexes at ludicrous speed, a new study shows. As bats flip and whirl toward their prey, they chirp at an accelerating rate, increasing their echolocating calls to 160-190 chirps per second. This is possible because their laryngeal muscles can contract up to 200 times per second, researchers say.
Tomorrow American high-energy physics centre Fermilab will power down their Tevatron particle collider for the final time, marking the end of an era. But for some, that era is so over anyhow. Hadrons, like last season's handbag, have had their time in the spotlight. The next hot trend in physics is muons, and all the cool kids know it. That's why Fermilab physicists are already taking a hard look at muon colliding technologies as a possible next move in the game of international physics research.
Atom interferometers are neat little devices that exploit the wave characters of atoms to make highly precise measurements of things like distance or the force of gravity. But because they are fickle by nature--even the smallest vibrations distort their results--atom interferometers have been mostly limited to highly controlled experiments that take place in either underground labs or in free-falling zero-g experiments. But a team of French researchers has announced today the first use of an atom interferometer to measure the acceleration of an airplane.
At 9:16 p.m. local time--that was at 9:16 a.m. eastern time here in the U.S.--China successfully lofted its first inhabitable space station module into orbit on the back of a Long March 2F launch vehicle, marking a milestone for both the People's space program and for the Party's geopolitical ambitions. China--the third nation (behind the U.S.A. and Russia) to independently launch manned missions into space aboard homegrown technology--now joins the old Cold War powers as the third nation to put a space station into orbit.