This Star Orbits Our Galaxy's Heart at a Record-Breaking Speed—and Could Help Uncover Secrets About the Behemoth Black Hole There
The speedster travels at up to 56 million miles per hour, or about 8 percent the speed of light. It also gets very close to the supermassive black hole at the center of the Milky Way
We haven't written up this one. Smithsonian has the full story — the link below goes straight to it.