NASA’s Fermi Gamma-ray Space Telescope has revealed that some of the universe’s brightest light sources originate near supermassive black holes in galaxy centres. These active galactic nuclei emit intense radiation, including gamma rays and X-rays, despite black holes themselves being invisible. Their powerful jets and high-energy emissions challenge current understandings of cosmic dynamics and galaxy evolution.
from Gadgets 360 https://ift.tt/6ituIvx
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