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Marvel at massive Milky Way energy emissions

At the center of our galaxy, chaos ensues: a supermassive black hole absorbs everything, young stars materialize, and elder stars explode. This violently beautiful cycle of activity creates galaxy-size bursts of charged particles that eject from the center of the Galactic Plane, and now you can see what those emissions look like.

Ettore Carretti, who works with Australian scientific research organization CSIRO, along with several other researchers around the world, describes the mega waves of energy in last week's issue of Nature. Team member Gianni Bernadi notes that the supersonic outflows -- which travel in excess of 621 miles per second -- originate from more than 100 million years of stars forming and exploding at the center of the Milky Way. … Read more

Australia begins test of Wi-Fi via TV antenna

Australia's Commonwealth Scientific and Industrial Research Organization has started testing its wireless broadband technology, which uses existing TV antennas, at the first National Broadband Network roll-out site of Smithton in Tasmania.

The system, named Ngara, works by installing antennas on existing TV broadcasting towers that transmit wireless broadband to households through their existing TV antennas, although slightly modified as some components in existing antennas don't allow them to be used as transmitters.

While the uplink test was a success, getting data downloaded was still a work in progress. "The team is only able to beam form to … Read more