On March 2, 2019, astronomers reported discovery of a dozen black holes gathered around Sagittarius A* (Sgr A*), the supermassive monster in the center of the Milky Way Galaxy, supporting a decades-old prediction. After conducting a cosmic inventory to calculate and categorize stellar-remnant black holes, the astronomers from the University of California concluded that there are probably tens of millions of the enigmatic, dark objects in the Milky Way – far more than expected. Star S2 orbiting Sagittarius A* Now, observations made with ESO’s Very Large Telescope (VLT) have revealed for the first time that a star, named S2, orbiting Sgr A* (artist impression above) –at the very edge of where space-time breaks down. The star moves in an egg-shaped orbit just as predicted by Einstein’s general theory of relativity. Its orbit is not like an ellipse as predicted by Newton’s theory of gravity. This long-sought-after result was made possible by increasingly precise measurements over nearly 30 years, which have enabled scientists to unlock the mysteries of the behemoth lurking at the heart of our galaxy.