Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...
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Feeding supermassive black holes may have ended the cosmic 'dark ages' billions of years agoNASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...
Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...
Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...
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Supermassive black hole spotted 12.9 billion light-years from Earth — and it's shooting a beam of energy right at usThe newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...
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