Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

Twin jets erupt from a supermassive black hole in Draco, offering new insights into black hole activity and evolution.

Using the XMM-Newton X-ray telescope, astronomers have witnessed a supermassive black hole already noted for its mysterious behavior demonstrating another strange phenomenon. The Massachusetts ...

Now, researchers report that they have caught a supermassive black hole in the act of eating a white dwarf, the last stage of evolution for stars like our Sun – but the white dwarf is not giving ...

MIT astronomers have been captivated by the strange behaviors of a supermassive black located 270 million light-years away, ...

Regular pulses of X-ray radiation emanating from a supermassive black hole could be explained by a white dwarf star on the ...

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...

Black holes themselves emit no light, but the supermassive black holes at the centers of galaxies are often surrounded by huge clouds of material. It's this material, heated by friction and gravity as ...

A strange black hole is making scientists scratch their heads.

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could they be?

The Massachusetts Institute of Technology (MIT) team thinks that a dead stellar core, or white dwarf, daringly teetering on the edge of the black hole is the cause of increasingly frequent ...