Not all galaxies are flat, and the stars in galaxies are sperated by enormous distances.
It’s the difference between Saturn and its rings. Saturn the plantet collapsed into a spheroid. The rings are pieces of stuff, not solid. Of all the stuff in the rings were thrown together into one solid clump, it would be a spheroid, too.
Not all galaxies are flat, and the stars in galaxies are sperated by enormous distances.
It’s the difference between Saturn and its rings. Saturn the plantet collapsed into a spheroid. The rings are pieces of stuff, not solid. Of all the stuff in the rings were thrown together into one solid clump, it would be a spheroid, too.
And I think we’re pretty lucky to see Saturn’s rings. Wait a few million years and they will collapse into a moon.