Yeah, when you're looking at the core of Andromeda, you're seeing countless stars fairly close together. That galaxy is larger than ours and contains an estimat

Yeah, when you're looking at the core of Andromeda, you're seeing countless stars fairly close together. That galaxy is larger than ours and contains an estimated one trillion stars. The best example of "dark" parts of the sky not being really dark is the Hubble Ultra-Deep Field. https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field https://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field It's pretty hard to find truly dark areas of the sky when you're looking far enough. The mind-blowing part is that almost all of those bright spots are galaxies, not stars.