How did they actually take this picture ( Very Long Baseline Interferometry)

This is an image of the supermassive black hole, Sagittarius A, at the center of our Milky Way galaxy. Visit to get 30 off your first month of any crate Image of Sgr A from EHT collaboration Event Horizon Telescope collaboration: Animations from The Relativistic Astrophysics group, Institute for Theoretical Physics, GoetheUniversität Frankfurt. Massive thanks to Prof. Luciano Rezzolla, Dr Christian Fromm and Dr Alejandro CruzOsorio. A huge thanks to Prof. Peter Tuthill and Dr Manisha Caleb for feedback on earlier versions of this video and helping explain VLBI. Great video by Thatcher Chamberlin about VLBI here Animations and simulations with English text: L. R. Weih L. Rezzolla (Goethe University Frankfurt) Video of stars going around Sgr A from European Southern Observatory