Tuesday, December 25th, 2007
An international team of astronomers has produced the first ever image of an astronomical object using high energy gamma rays, helping to solve a 100 year old mystery - an origin of cosmic rays. Their research, published in the Journal Nature on November 4th, was carried out using the High ...
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Tuesday, December 25th, 2007
By working in synergy with a ground-based telescope array, the joint Japanese Aerospace Exploration Agency (JAXA)/NASA Suzaku X-ray observatory is shedding new light on some of the most energetic objects in our galaxy, but objects that remain shrouded in mystery.
These cosmic powerhouses pour out vast amounts of energy, and they ...
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Friday, November 9th, 2007
One of the Auger Observatory's surface detectors. The Andes Mountains provide a snow-capped backdrop to the west of the surface detector array. (Credit: Pierre Auger Observatory)
Scientists of the Pierre Auger Collaboration announced November 8 that active galactic nuclei are the most likely candidate for the source of the highest-energy cosmic ...
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Friday, October 26th, 2007
Jets of high-speed particles stab out from a supermassive black hole at the heart of an active galaxy.
Vast magnetic cocoons associated with galaxies whose black holes have stopped eating may be responsible for accelerating charged particles called cosmic rays to within a whisker of the speed of light.It could explain ...
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