Light-Ring Stability for Ultracompact Objects – Emanuele Berti
By the numbers: First-ever image of black hole's event horizon | Penn Today
A new theorem predicts that stationary black holes must have at least one light ring
Physics - Illuminating Black Holes through Turbulent Heating
New telescopes may help spot 'photon ring' of first black hole imaged | Science News
A new theorem predicts that stationary black holes must have at least one light ring
There Are Infinite Rings of Light Around Black Holes. Here's How We Could See Them
A Black Hole's Lunch Provides a Treat for Astronomers - The New York Times
The first-ever image of a black hole has been released | TechSpot
There Are Infinite Rings of Light Around Black Holes. Here's How We Could See Them
Astronomers Spot Unusual, Enormous Rings Around a Black Hole
Powerful telescopes can spot the 'Photon Ring' of the first imaged black hole
Astronomers Discover Way to Get Sharp Images of Black Hole's Photon Rings | Sci-News.com
Imaging a Black Hole | PhysicsCentral
Black hole pictured for first time — in spectacular detail
Scientists Predict Countless Rings of Light Encircle Black Holes - Sky & Telescope - Sky & Telescope
What Are Black Holes? | NASA
Universal interferometric signatures of a black hole's photon ring
Einstein ring helps weigh a black hole | Science Wire | EarthSky
All Black Holes Should Sport Light Rings | Inside Science
The ring around the black hole glitters | Max-Planck-Gesellschaft
Ghostly rings found around a black hole - CNN
All Black Holes Should Sport Light Rings | Inside Science
Why Is the First-Ever Black Hole Picture an Orange Ring? | Live Science
How to Understand the Black Hole Image - YouTube
