As we continue outward into the farthest reaches of the galactic disk, the stars are separated by dozens, then hundreds, of light-years, and the interstellar gas thins out 100-fold.
As we continue outward into the farthest reaches of the galactic disk, the stars are separated by dozens, then hundreds, of light-years, and the interstellar gas thins out 100-fold.
当我们继续朝银盘最外沿前进，恒星间的距离从几十光年延长为几百光年，而星际气体则变稀薄100倍。