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The 70-Year-Old Mystery of Two Galactic Mushroom Clouds
Giant bubbles hovering over the Milky Way seem to be remnants of an ancient explosion.
Jeremy Sanders, Hermann Brunner and the eSASS team (MPE); Eugene Churazov, Marat Gilfanov (on behalf of IKI)
When Peter Predehl, an astrophysicist at the Max Planck Institute for Extraterrestrial Physics in Germany, first laid eyes on the new map of the universe’s hottest objects, he immediately recognized the aftermath of a galactic catastrophe. A bright-yellow cloud billowed tens of thousands of light-years upward from the Milky Way’s flat disk, with a fainter twin reflected below. ....

Yoshiaki Sofue , Jun Kataoka , University Of Tokyo , Waseda University , North Polar Spur , Pair Of Bubbles , Faint Gamma Ray Glow , Bright Yellow Cloud , Orbitingx Ray Telescope , Light Years , Supermassive Black Hole , Astronomers Major Headache , Fermi Space Telescope , New Map Of The Universe , Supernova Remnant , Discovery Of The Fermi Bubbles , Max Planck Institute , Map Tracesx Ray Bubbles , Decades Old Idea , Peter Predehl , Controversy Hinges , Metal Abundance , Black Hole , 2d Map Ofa 3d Universe , Milky Ways Flat Disk , Gamma Ray Fermi Bubbles ,