It’s been part of our galaxy since the dawn of time.
NASA/JPL-Caltech/R. Hurt (SSC/Caltech)
While the bulk of the Milky Way spins in an unmistakable spiral, wispy trails of stars find their own orbit around the galaxy’s center.
Billions of years ago, they were organized in globular clusters that held some of the first materials that formed the Milky Way.