“Black Hole Relics?” –Mystery of Enormous Bubbles Towering Over the Milky Way

Milky Way Galaxy

 

In 2010, astronomers working with the Fermi Gamma-Ray Space Telescope unveiled a previously unseen structure centered in the Milky Way that spans 50,000 light-years that may be the remnant of an eruption from the supermassive black hole at the center of our galaxy. The structure spans more than half of the visible sky, a region roughly as large as the Milky Way itself, and it may be millions of years old, its origin an unsolved mystery.

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Milky Way’s Violent Central Engine –“Two X-Ray Plumes Discovered Reaching Out 500 Light Years”

 

Milky Way's True Shape

 

In images collected from 2016 to 2018 and in 2012, researchers have found two plumes of X-rays — galactic center chimneys — stretching in opposite directions from the central hub of the galaxy. Each plume originates within about 160 light-years of the supermassive black hole and spans over 500 light-years.

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