The Event Horizon Telescope Collaboration observed the supermassive black hole at the center of M87, finding the dark central shadow in accordance with General Relativity, further demonstrating the power of this 100 year-old theory.

To understand more about why the shadows look the way they do, check out:    • How to Understand What Black Holes Lo...  

I will continue updating this description with more links.

Event Horizon Telescope collaboration: https://ve42.co/EHT

Animations and simulations with English text:
L. R. Weih & L. Rezzolla (Goethe University Frankfurt)
   • Accretion flow onto a Kerr Black Hole...  

Video of observation of M87 courtesy of:
C. M. Fromm, Y. Mizuno & L. Rezzolla (Goethe University Frankfurt)
   • Using VLBI to create an Image of the ...  

Video of observation of SgrA* courtesy of
C. M. Fromm, Y. Mizuno & L. Rezzolla (Goethe University Frankfurt)
Z. Younsi (University College London)
   • Using VLBI to create an Image of the ...  

Video of telescopes in the array 2017:
C. M. Fromm & L. Rezzolla (Goethe University Frankfurt)
   • Telescopes in the Event Horizon Teles...  

Animations and simulations (no text):
L. R. Weih & L. Rezzolla (Goethe University Frankfurt)
   • Accretion flow onto a Kerr Black Hole...  

Special thanks to Patreon supporters:
Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme

Scale animation by Maria Raykova