Speedster Star Dances Around Galaxy’s Monster Black Hole

Meet S301, a star that zips around the Milky Way’s central black hole faster than any other object we’ve ever spotted. It races at roughly 15,500 miles per second, which is about 55.8 million miles per hour. That speed tops the old record holder, a tiny star and its planet that crawled along at just 1.2 million mph. In everyday terms, S301 is moving millions of times quicker than anything we’ve seen before.

What makes S301 extra special is how close it gets to Sagittarius A*, the supermassive black hole at the galaxy’s heart. It swings within ten times the distance of the previous nearest star, S2. That proximity lets scientists feel the black hole’s pull much more strongly than ever before.

Einstein’s general relativity predicts that a spinning black hole drags spacetime around it, a phenomenon called frame‑dragging. S301 is the first star found right in the zone where this effect is extreme, and researchers have already measured it there. Think of a swirl in water when you spin your hand; the black hole creates a similar twist in the fabric of space.

The team at the German research group plans to watch S301 for the next ten years. By tracking its orbit they hope to unlock secrets about how black holes shape spacetime and why they behave the way they do. This long‑term look could finally give us data that was impossible with any other known object.