Mm-hmm.

And there it start an activity which develop fur- further and further than, than more for the 50 years with Reinhard Genzel, making the greatest observation in, from the, uh, VLT and, uh, from, um, uh, the largest telescope in Chile.

And observing closer and closer and closer in the galactic center.

And what was fantastic is, uh, that no matter the expectation of many people, uh, that a black hole should be found a few solar mass fu- fulfilling, um, Kerr solution, they did not found this object.

And they look very much for long time, and what they found was something completely different, that, uh, some stars moving around the galactic center point to the existence of a large condensation, uh, of 10 of a million, uh, solar masses in the galactic center, which were evolving toward the formation of the black hole.

And, uh, the, the reason they did not find a black hole in the galactic center was very fortunate, because our galactic center would be ruined by the presence of a black hole, the tranquility of the galactic center.

On the contrary, the galac- the galactic center is a region very gentle from the point of view of interaction, cannot afford the luxury of very energetic black holes.

Um, uh, how, how can you dissect this object to, to figure out what's on the inside?