How big is home?
The stellar disk spans about 87,400 light-years, but is only roughly 1,000 light-years thick in the spiral arms.Milky Way: How Big Is Our Galaxy, Really?
Edges that aren’t edges
Stars don’t stop at a hard boundary. Some disk stars likely reach ~100,000 light-years from the center, beyond the once‑assumed cutoff.Milky Way: How Big Is Our Galaxy, Really?
