Reacción a "Reactions to the first image of the supermassive black hole at the centre of the Milky Way galaxy"

The observation is quite a milestone. From a technical point of view, it is the most conclusive observation of a black hole ever made and quite an experimental feat.

From a more theoretical point of view, this observation is of great interest because the observed results are still in agreement with the results predicted by Einstein's equations of General Relativity, formulated more than 100 years ago. This is very interesting because most tests of Einstein's equations have been performed for very weak gravitational fields. However, the observations made in this black hole, in whose center gravity is so intense that light cannot escape, are still described by Einstein's theory, which supports its validity even in these extreme regimes.

From a more general point of view, the observation is very interesting because, after all, this is precisely the black hole at the center of our galaxy.

Looking to the future, this observation opens the way to observe more black holes in detail and in a more systematic way, even making movies of their temporal evolution. This will allow us to continue validating the predictions of Einstein's equations at the frontier of known Physics or, who knows, even observe effects inexplicable by the laws of Physics known today.