First photo of a black hole supports Einstein's theory of relativity - CNN
Scientists Predict Countless Rings of Light Encircle Black Holes - Sky & Telescope - Sky & Telescope
Press Release (April 10, 2019): Astronomers Capture First Image of a Black Hole | Event Horizon Telescope
Physics - Getting a Black Hole's Spin from its Photon Ring
Light-Ring Stability for Ultracompact Objects – Emanuele Berti
Powerful telescopes can spot the 'Photon Ring' of the first imaged black hole
This weird black hole is bending light back on itself like a boomerang | Space
Imaging a Black Hole | PhysicsCentral
Astronomers Discover Way to Get Sharp Images of Black Hole's Photon Rings | Sci-News.com
GMS: Black Hole Accretion Disk Visualization
What Are Black Holes? | NASA
Mysterious swirling light gives new insights into black holes | Black holes | The Guardian
A new theorem predicts that stationary black holes must have at least one light ring
:no_upscale()/cdn.vox-cdn.com/uploads/chorus_image/image/63395084/blackhole_gif.0.gif "The very first image of a black hole, explained by 2 astrophysicists - Vox")
The very first image of a black hole, explained by 2 astrophysicists - Vox
The first-ever image of a black hole has been released | TechSpot
Astronomers Spot Unusual, Enormous Rings Around a Black Hole
A new theorem predicts that stationary black holes must have at least one light ring
A Black Hole's Lunch Provides a Treat for Astronomers - The New York Times
What's that ring that only now appears in black hole illustrations? - Astronomy Stack Exchange
The ring around the black hole glitters | Max-Planck-Gesellschaft
