May 27, 2022

Reference Resource Roundup: Astronomers Capture First Image of a Black Hole

From Event Horizon Telescope Website (Center for Astrophysics | Harvard & Smithsonian):

The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole. Today, in coordinated press conferences across the globe, EHT researchers reveal that they have succeeded, unveiling the first direct visual evidence of a supermassive black hole and its shadow.

This breakthrough was announced today in a series of six papers published in a special issue of The Astrophysical Journal Letters. The image reveals the black hole at the center of Messier 87 [1], a massive galaxy in the nearby Virgo galaxy cluster. This black hole resides 55 million light-years from Earth and has a mass 6.5 billion times that of the Sun.


“We have taken the first picture of a black hole,” said EHT project director Sheperd S. Doeleman of the Center for Astrophysics | Harvard & Smithsonian. “This is an extraordinary scientific feat accomplished by a team of more than 200 researchers.”


Complete News Release (via Event Horizon Telescope)

Press Conferences

Washington DC Press Conference

European Commission Press Conference

Hi-Res Images

4000×2330 pixels 
PNG (16-bit) |||  JPG (8-bit) format

7416×4320 pixels TIF, 16-bit, 180 Mb
via NSF and ESO

This research was presented in a series of six papers published today in a special issue of The Astrophysical Journal Letters, along with a Focus Issue:

Paper I: The Shadow of the Supermassive Black Hole

Paper II: Array and Instrumentation

Paper III: Data processing and Calibration

Paper IV: Imaging the Central Supermassive Black Hole

Paper V: Physical Origin of the Asymmetric Ring

Paper VI: The Shadow and Mass of the Central Black Hole


Black Hole Image Makes History

Media Coverage

First Ever Real Image Of A Black Hole Revealed (via New Scientist)

Selected Resources About Project

SXSW 2019 Panel (Recorded March 2019): “A Planetary Effort To Photograph A Black Hole” 

Last Updated: April 10, 2019 (3:30pm EDST)

About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.