In this second episode of the ESOcast Dr. J takes us to the centre of the Milky Way to talk about a supermassive black hole there located. We will hear from two scientists involved in an unprecedented 16-year long study, which used several of ESO’s flagship telescopes to produce the most detailed view ever of the surroundings of the monster lurking at our Galaxy’s heart. How were the hidden secrets of this tumultuous region unravelled? Watch this ESOcast and find out.