🔬 Science 13h ago · Ethan Siegel

The ultimate key to unlocking the heart of the Milky Way

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The ultimate key to unlocking the heart of the Milky Way
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At the centers of galaxies, supermassive black holes reside.



This image of the central region of galaxy Messier 87 comes in the X-ray, via NASA’s Chandra X-ray observatory. The central, supermassive black hole is blasting out energetic particles at 99%+ the speed of light, which produces X-rays visible for up to 18,000 light-years from the galactic center. It is often easier to see these features in extragalactic objects than in our own galaxy, due to the large amount of obscuring material pr

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