SUNSET: 
Our Galaxy's Center Might Hold Thousands of 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.
Physicist Proposes Alternative to Black Holes
A physicist has incorporated a quantum mechanical idea with general relativity to arrive at a new alternative to black hole singularities.
Neutron Star Powers Ultraluminous X-rays
It turns out that neutron stars — not black holes — power at least some ultraluminous X-ray sources.
Astronomers Watch Donut Rotate Around Supermassive Black Hole
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.
60-Second Astro News: Merging Black Holes, Distant Super-Supernova, and Arecibo's Fate
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.
60-Second Astro News: Black Holes Galore
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.
The Black Hole Files with Camille Carlisle
Most Distant Black Hole Yet
Astronomers have discovered a supermassive black hole scarfing down gas just 690 million years after the Big Bang.
Infant Stars Huddle near Black Hole
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 Sees Smallest Black Hole Binary Yet
LIGO has detected another black hole merger, raising the tally to five.
The Star That Wouldn’t Die
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?
Astronomers Decode a Black Hole Jet
Two telescopes — one on the ground and one in space — watched a black hole’s jet turn on, enabling astronomers to probe its origin.
2017 Nobel Goes to Gravitational Waves
Three American physicists have received the Nobel Prize in physics for their contributions to the discovery of gravitational waves.
Is There a Difference Between Starving and Feasting Black Holes?
A few decades ago, astronomers thought they had figured out how quasars operate. Now, a new study has thrown a wrench in the works.
First Black Holes Maybe Had Supersonic Help
Gas flows in the early universe may have kept clouds from collapsing too soon, enabling them to grow into massive black hole seeds.
Fourth Gravitational Wave Event Detected
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.
Supermassive Black Holes Discovered in Close Tango
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.
Supermassive Black Holes Observed in Close Dance
Astronomers monitoring a tight pair of supermassive black holes have observed their orbital motion.
Ring Found Around a Galaxy’s “Hidden” Black Hole
A team of astronomers has taken a close look at a nearby galaxy — and discovered an unusual structure that sheds light on supermassive black holes’ relationships with their host galaxies.
LIGO Detects Third Black Hole Merger
Scientists with the gravitational-wave observatory announce another discovery, this time of a black hole merger twice as far away as previous detections.
Gravitational Waves Dethrone Supermassive Black Hole
Astronomers have discovered a supermassive black hole not sitting in its customary seat at the center of its galaxy. Gravitational waves from a recent merger may have ejected the black hole.
