What it Takes to Image a Black Hole

What does it take to capture an image of the black hole at the centre of our galaxy? This video explains how the Event Horizon Telescope (EHT) works, and how astronomers managed to create one massive Earth-sized telescope big enough to “see” at the edge of black holes. More information and download options: Credit: ESO Directed by: Martin Wallner and Herbert Zodet. Editing : Herbert Zodet and Martin Wallner. Web and technical support: Gurvan Bazin and Raquel Yumi Shida. Written by: Martin Wallner, Giulio Mazzolo and Bárbara Ferreira. Narration: Colin Griffiths-Brown. Music: Stellardrone — Ethereal/Open Cluster and Azul Cobalto . Footage and photos: ESO, EHT Collaboration, ALMA (ESO/NAOJ/NRAO), L. Calçada, M. Kornmesser, Nick Risinger ( ), Digitized Sky Survey 2, VISTA, VVV Survey/D. Minniti DSS, Nogueras-Lara et al., Schoedel, NACO, GRAVITY Collaboration, NASA, ESA/Hubble, RadioAstron, De Gasperi