Not long ago, the center of our Milky Way galaxy exploded | | Remember the vast and mysterious Fermi bubbles, apparent remnants of a titanic explosion from the center of our Milky Way galaxy? They were widely discussed around the year 2010, noticeable in X-ray and gamma ray data from the Rosat and Fermi satellites. Astronomers said Sunday that they've uncovered more evidence relating the Fermi bubbles - gathered using Hubble Space Telescope data - in the form of two enormous bursts of ionizing radiation that must have zipped through the poles of our galaxy and out into deep space. One burst must have been powerful enough to reach 200,000 light-years into space, so that its impact struck the Magellanic Stream, a long trail of gas extending from the nearby Large and Small Magellanic Clouds. Read more. | | |
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