Global Communications Campaign for the First Results from the Event Horizon Telescope

An unprecedented coordinated campaign for the promotion and dissemination of the first black hole image obtained by the Event Horizon Telescope (EHT) collaboration was prepared over several months prior to the publication of this result on 10 April 2019. This was the most popular story ever published for many scientific organisations involved in the project. Thanks to modern media, the news reached a considerable fraction of the world population, boosting the visibility of the EHT, involved observatories and organisations, astronomy, science, and international collaboration in general. This poster will highlight the organization of the coordinated communication effort and its main outcomes.