The Universe at a glance…

Well, several glances actually…  As spotted by the Guardian blog’s Tom McCarthy, NASA has released a new atlas and catalog of the entire infrared sky “showing more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer (WISE) mission.”  And an impressive view it is. [Image Credit: NASA/JPL-Caltech/UCLA]   From the Nasa press release The sky can be thought of as a sphere that surrounds us in three dimensions. To make a map of …

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Fermi Finds Galactic Gamma-ray-emitting Bubbles

Fascinating discovery by Nasa’s Fermi Gamma-ray Space Telescope, which achieved first light in August 2008.  Image credit: NASA’s Goddard Space Flight Center. From the Nasa press release NASA’s Fermi Gamma-ray Space Telescope has unveiled a previously unseen structure centered in the Milky Way. The feature spans 50,000 light-years and may be the remnant of an eruption from a supersized black hole at the center of our galaxy. “What we see are two gamma-ray-emitting bubbles that extend 25,000 light-years north and …

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