Astronomers discover S301, fastest star in Milky Way orbiting black hole

At the heart of our galaxy, a star called S301 races around the supermassive black hole Sagittarius A* at 8 percent the speed of light — the fastest known stellar motion in the Milky Way. Detected by an international team using Chile's Very Large Telescope Interferometer and published in Nature, this discovery is more than an astronomical record: it is a key that may finally unlock a century-old question about the nature of space-time itself. Within a decade, watching S301 complete its swift, close orbits could yield the first direct measurement of how fast a black hole spins, putting Einstein