More than 60 years after astronomers first detected its X-ray glow, Cygnus X-1 — the first black hole ever confirmed — is ...

Astronomers have discovered that jets from a cannibalistic black hole are erupting with the power of 10,000 suns.

Hole-y guacamole. Scientists have quantified the energy produced by the first black hole ever discovered, revealing that it ...

A new study suggests that black holes may defy one of their most well-established properties under certain quantum conditions ...

In general, anything larger than 13 times the mass of Jupiter has been deemed a brown dwarf, as these objects should be able ...

"It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time ...

Using observations gathered by the James Webb Space Telescope (JWST), an international team of astronomers have revealed that ...

Astronomers have observed a distant galaxy’s supermassive black hole undergoing a dramatic transformation. The galaxy’s black ...

Astronomers have long struggled to clock the speed and power of Cygnus X-1, a ...

By analyzing the data from various space observatories, Chinese astronomers have inspected a nearby quasar designated SDSS ...

Astronomers trace a black hole outburst from its first light, reshaping theories about how these cosmic eruptions start.

A lonely world drifting through space with no star to orbit is gorging on gas and dust at a staggering pace, swallowing ...