SUNSET: 
60-Second Astro News: Black Hole Hubbub
The Milky Way's black hole' flares unexpectedly, a distant black hole gets the hiccups, and a reanalysis of LIGO data shows the first detection of black hole "ringdown."
Warped Milky Way in 3D
Astronomers have used pulsating stars to trace the crooked shape of our galaxy’s disk.
Galactic Center Gravity Test Confirmed
A second team of astronomers has now confirmed the light from a star passing near our galaxy’s central black hole behaved as predicted by Einstein’s theory of gravity.
The Black Hole Files with Camille Carlisle
How Does the Event Horizon Telescope Work?
The Event Horizon Telescope creates the image of a black hole shadow thanks to the precise coordination of a worldwide telescope network. Here’s how they do it.
Scientists Unveil First Black Hole Image
The Event Horizon Telescope collaboration has reconstructed the shadow of a supermassive black hole.
The Black Hole Files with Camille Carlisle
Could Dark Matter Be Black Holes?
Astronomers are reconsidering primordial black holes as an answer to the invisible matter mystery, but recent observations disfavor at least some sizes of black hole.
Saturn's Rings Built Up Its Tiny, Close-in Moons
A new study of observations from NASA's Cassini sheds light on the tiny moons that orbit within Saturn's vast ring system.
‘Oumuamua "Sped Up" in the Inner Solar System. This Might Be Why.
Astronomers think a jet-powered rocking motion could solve the puzzle.
The Black Hole Files with Camille Carlisle
Piercing the Veil of Our Black Hole
Astronomers have overcome the interference of clumpy interstellar gas to catch a glimpse of the gas around the Milky Way’s central black hole.
Saturn Hasn’t Always Had Rings
Analyses of data from Cassini’s final days suggest the rings are a late addition and use them to solve a Saturnian mystery.
We Don’t Really Know When the Sun Rises
Hundreds of sunrise and sunset times reveal that there’s something amiss with our calculations.
Astronomers Use Annihilated Star to Clock Black Hole’s Spin
The glow of a star torn up by a supermassive black hole has enabled researchers to measure how fast the black hole whirls around.
Rotating Gas in a Quasar’s Heart
Astronomers have “imaged” gas as it orbits a supermassive black hole some 2 billion light-years away.
What LIGO Teaches Us About Black Holes
The rising count of gravitational-wave events is giving us a new look at a once-invisible population of black holes.
The Black Hole Files with Camille Carlisle
Gas Seen Moving Near the Event Horizon
Astronomers have detected three flares from near our galaxy’s central black hole that look like gas closely orbiting the unseen object.
The Black Hole Files with Camille Carlisle
Odd Jets Might Signal Dual Black Holes
Off-kilter, curved, and otherwise unusual beams of plasma from galaxies’ cores might track the dueling dances of two supermassive black holes.
Ancient Merger Wreckage in the Milky Way
Mounting evidence indicates that our galaxy smashed up another smaller galaxy roughly 10 billion years ago.
Source for Europa Geysers Missing
A new look at old data suggests there’s something missing from suspected plumes on Europa: a heat source.
The Black Hole Files with Camille Carlisle
Video: The Glow of Spiraling Black Holes
New calculations reveal what two supermassive black holes about to merge would look like in ultraviolet and X-rays.
Jupiter’s Magnetic Field Has Weird Structure
Juno observations reveal that Jupiter’s magnetic field has a wacky plume.