The supermassive black hole at the center of the Milky Way released an unusual number of strong flares in 2019. Now, astronomers are trying to figure out why.
Event Horizon Telescope data support the idea that magnetic fields control how black holes feed and grow.
A single high-energy neutrino may shed light on a star being swallowed by a supermassive black hole some 690 million light-years away.
A higher mass for Cygnus X-1, the first black hole to be discovered, challenges ideas about the evolution of massive stars.
In the news this week: Globular clusters have the detailed scoop on our galaxy's past, and a "heartbeat" black hole binary in the Milky Way has gone mysteriously dim.
The existence of a quasar when the universe was only 670 million years old is helping astronomers understand how black holes are born.
Duos of supermassive black holes tangoing throughout the universe make their own music, and astronomers may have picked up a hint of the tune.
Astronomers have spotted a surprising number of quasars with jets launched within a couple of decades.
Gravitational-wave scientists have unveiled their latest catalog of events, revealing a surprising number of massive black holes.
This year’s award goes to three researchers who played key roles in developing the theoretical and observational evidence for black holes.
Gravitational-wave observatories have detected the most massive black hole merger yet, and it's challenging our ideas of black hole formation.
Astronomers think they’ve detected a flash created by the merger of two black holes.
Astronomers have caught a black hole colliding with a mysterious companion that might be either one of the most massive neutron stars or the smallest black hole ever detected.
Calculations suggest how black holes have amassed mass and predict what the black holes’ spins should be if this picture is correct.