Fastest Star Ever Found in the Milky Way Is Racing Around Our Galaxy’s Black Hole

The fastest known star in the Milky Way could give astronomers their first direct measurement of the spin of Sagittarius A*. Near the center of the Milky Way, a star is racing around Sagittarius A* at speeds reaching 25 000 km/s. Named S301, it is the fastest known star in our galaxy and passes closer [...]