Sgr A*, at the heart of the Milky Way and clocking in at 4.3 million solar masses, is the closest supermassive black hole we have access to. It's also on the quiescent end of the activity scale, which ...
NASA'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 ...
"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an ...
Researchers have found there are many more black holes in the universe than once thought. (Credit: WikiMedia Commons) Most ...
Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.
"This is how you solve the universe-breaking problem." ...
A strange black hole is making scientists scratch their heads.
Galactic nuclei images reveal how supermassive black holes interact with their surroundings using infrared telescopes.
Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...
The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...