Historic Advances in Black Hole Imaging

First Direct Image of a Black Hole (M87)

• In April 2019, the Event Horizon Telescope (EHT) released the first direct image of a supermassive black hole at the center of galaxy M87.
• A bright, ring-like structure around a dark central region, termed the "black hole shadow," was observed.
• Confirmed Einstein’s theory of general relativity; the black hole's structure aligned with theoretical predictions.

Imaging of the Milky Way's Black Hole (Sgr A)

• In May 2022, EHT presented the first image of Sgr A, the black hole at the centre of our galaxy.
• Special image processing techniques were required due to rapidly orbiting gas.
• Provided ....