New calculations reveal what two supermassive black holes about to merge would look like in ultraviolet and X-rays.
How did supermassive black holes form? Two studies discovered dozens of middling-mass black holes in dwarf galaxies to fuel an ongoing debate.
An X-ray telescope recently installed on the International Space Station has provided a detailed look at a black hole feeding off its companion star.
Astronomers have seen a star’s light redden as it passed our galaxy’s central black hole, just as general relativity predicts.
New observations give more fuel to the concept of intermediate-mass black holes.
Astronomers have watched the growth of a jet fueled by a shredded star.
Astronomers have discovered three more red, dusty objects near the Milky Way’s central black hole that could be merged stars.
New simulation work suggests that galaxies like the Milky Way could be home to a dozen supermassive black holes.
A new study has uncovered a dozen stellar-mass black holes within 3 light-years of the supermassive black hole at our galaxy’s core — and these might be just the tip of the iceberg.
A physicist has incorporated a quantum mechanical idea with general relativity to arrive at a new alternative to black hole singularities.
It turns out that neutron stars — not black holes — power at least some ultraluminous X-ray sources.
Astronomers have detected a torus rotating around the supermassive black hole at the center of spiral galaxy Messier 77, collecting observations that may shed light on why these weird structures exist.
Supermassive black holes en route to merger have strange dynamics in their gas disks. Astronomers have spotted the most distant spectroscopically confirmed supernova. And NSF decides the fate of the Arecibo Observatory.
Supermassive black holes are difficult to observe and measure, yet they have profound effects on their host galaxies. Read up on the latest black hole discoveries presented at the Washington D.C. meeting of the American Astronomical Society.
Astronomers have discovered a supermassive black hole scarfing down gas just 690 million years after the Big Bang.
A team of astronomers has found signs of small stars forming within a few light-years of the Milky Way’s central black hole.
LIGO has detected another black hole merger, raising the tally to five.
Observations of a stellar explosion that refused to fade away have astronomers scratching their heads. What created the blast — and could it explain massive black holes?
Two telescopes — one on the ground and one in space — watched a black hole’s jet turn on, enabling astronomers to probe its origin.
Three American physicists have received the Nobel Prize in physics for their contributions to the discovery of gravitational waves.
A few decades ago, astronomers thought they had figured out how quasars operate. Now, a new study has thrown a wrench in the works.
Gas flows in the early universe may have kept clouds from collapsing too soon, enabling them to grow into massive black hole seeds.
Teaming up with LIGO, Europe’s Virgo detector has bagged its first gravitational waves. The three-observatory detection enabled scientists to better pinpoint the merging black holes’ location.
Astronomers have found what could be the closest known pair of supermassive black holes detected via direct imaging, orbiting each other only a light-year apart.
Astronomers monitoring a tight pair of supermassive black holes have observed their orbital motion.