Astronomers using NASA’s Swift satellite have detected an outburst of high-energy X-rays emanating from a binary system in the constellation Cygnus – signs that a black hole is reawakening after 25 years of slumber. 456 more words
Tags » Fermi Gamma-ray Space Telescope
The discovery of a ‘left-handed’ magnetic field that pervades the universe could help explain a long standing mystery – the absence of cosmic antimatter. A group of scientists, led by Prof Tanmay Vachaspati from Arizona State University in the United States, with collaborators at the University of Washington and Nagoya University, announce their result in… 139 more words
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Despite extensive analysis, Fermi bubbles defy explanation
Aug 01, 2014(Phys.org) —Scientists from Stanford and the Department of Energy’s SLAC National Accelerator Laboratory have analyzed more than four years of data from NASA’s Fermi Gamma-ray Space Telescope, along with data from other experiments, to create the most detailed portrait yet of two towering bubbles that stretch tens of thousands of light-years above and below our galaxy.
Explanation: What is creating the gamma rays at the center of our Galaxy? Excitement is building that one answer is elusive dark matter. Over the past few years the orbiting Fermi Gamma-ray Space Telescope has been imaging our Galaxy’s center in gamma-rays. 142 more words