Author:
Tickner, Clive
Category:
Essays
Sub-Category:
Astrophysics
Language:
English
Date Published:
March 5, 2026
Downloads:
35
Keywords:
Algorithms, network of radio telescopes, 4.5 petabytes of data, black hole's appearance, pre-existing models, hypothetical image, Sheperd Doeleman, Hotaka Shiokawa, a reasonable image, mathematical manipulations
Abstract:
In April 2019, the Event Horizon Telescope (EHT) collaboration made headlines with the announcement that they had captured the “first image of a black hole”, specifically the one at the centre of the galaxy M87. This assertion was accompanied by the widespread promotion of an image of Sagittarius A*, the supermassive black hole at the centre of our own Milky Way galaxy, as a dense, swirling, orange ring with a dark centre. Whilst this feat has been celebrated as groundbreaking, a closer examination reveals that the image in question was not a photograph in the conventional sense, but a carefully constructed illustration based on sparse and imperfect data, heavily influenced by pre-existing theoretical models. Was this announcement promoted to enhance the scientific community’s reputation, or just as a novelty for a naïve and easily impressed public?
2 total records on 1 pages