Active galactic nucleus
Largest observed flare from a black hole unleashes the light of 10 trillion suns
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Astronomers have spotted the largest and most distant flash ever seen from a supermassive black hole. The flare, nicknamed “Superman”, ...
Hubble Space Telescope Snaps New Image of NGC 4102
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The NASA/ESA Hubble Space Telescope reveals the galaxy's glowing center and majestic spiral arms in this new image of NGC ...
