Feasting on the gas can cause some weird (heavenly) bodily functions. AT 2021hdr is a binary supermassive black hole (BSMBH) system in the center of a galaxy 1 billion light-years away ...

proving that the dark companion is a black hole, with its mass falling within the mass gap. More notably, G3425 is a wide ...

That is exactly what seems to be lurking in binary system G3425 ... to scientists is the mass of its compact dark companion.

In a "rite of passage," the JAXA/NASA X-ray telescope XRISM has mapped in detail Cygnus X-3, a curious binary system with a ...

"This is very likely to bring us closer to discovering the true nature of dark energy. Perhaps it will also bring us closer to an understanding of the true nature of black holes" Scientists have ...