Scientists Discover Fastest Known Star in Milky Way, Orbiting Black Hole at 15,500 Miles Per Second

Summary

Astronomers have discovered S301, the fastest known star in the Milky Way, which orbits the supermassive black hole Sagittarius A* at speeds up to 15,500 miles per second. This discovery, published in Nature, offers a new opportunity to measure the spin of a massive black hole and test Einstein's theory of general relativity.