The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...
Since 2018, we've seen 1ES 1927+654 generate jets in real time and found it may have a lone white dwarf orbiting near the ...
A strange black hole is making scientists scratch their heads.
The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.
Regular pulses of X-ray radiation emanating from a supermassive black hole could be explained by a white dwarf star on the ...
NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...