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, Goethe-Universität Frankfurt. Massive thanks to Prof. Luciano Rezzolla, Dr Christian Fromm and Dr Alejandro Cruz-Osorio. 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 .