Supermassive black holes, with masses more than a million times that of the Sun, reside at the centers of all massive galaxies. A new study published in...
A sudden flare from a low-mass black hole in the binary system V404 Cygni has offered astrophysicists a unique opportunity to make precise measurements...
An international group of astronomers has discovered and measured the distance to the most distant supermassive black hole ever found.
Artist’s conception...
Using X-ray data from NASA’s Chandra X-ray Observatory and optical data from ground-based telescopes, astronomers have spotted what could be the most...
In a paper published in the journal New Astronomy, theoretical physicist Ovidiu Racorean suggests that X-ray photons emitted by accretion disks around...
Conditions favorable for mergers of massive black holes exist in the outer gas disks of massive spiral galaxies, according to a study led by Rochester...
The LIGO Scientific Collaboration and the Virgo Collaboration report the first joint detection of gravitational waves, ripples in the fabric of space and...
Astronomers have discovered what may be the most compact binary supermassive black hole ever known in a galaxy about 400 million light years from Earth.
An...
An international research team, led by Dr. Bianca Poggianti of the INAF-Astronomical Observatory of Padova, has used the MUSE instrument on ESO’s Very...
An international team of astronomers has found evidence for a unique gravitational lensing system, in which a massive star cluster is magnifying an extremely...
A trio of astronomers at the University of California, Irvine, claims that stellar-remnant black holes, which result from the collapse of massive stars...
In a paper to be published in the journal Physical Review Letters (arXiv.org preprint), Professor George Fuller of the University of California, San Diego,...
Scientists from the LIGO Scientific Collaboration and the Virgo Collaboration have made a third detection of gravitational waves, ripples in the fabric...
Astronomers have watched as N6946-BH1, a red supergiant with a mass of 25 solar masses in the spiral galaxy NGC 6946, was likely reborn as a black hole.
This...
Pointing the Karl G. Jansky Very Large Array (VLA) at the well-known and often-studied galaxy Cygnus A for the first time in more than 20 years, astronomers...
A team of theoretical physicists at the University of Cambridge, UK, has used computer simulations to predict the existence of a so-called naked singularity,...
An international team of astronomers and astrophysicists, led by University of Utah, has detected supermassive black holes in two ultra-compact dwarf galaxies:...
New observations from ESO’s Very Large Telescope have revealed stars forming in the powerful outflows in galaxies, which are driven by central supermassive...
Astronomers have uncovered a monster black hole that has been propelled out of the center of a distant galaxy, called 3C 186, by what could be the power...
