ELI5: If all the stars in the universe were combined into a single object, what % of space would be empty?
Or how much of space would be full?
u/AdministrativeCow300 — 4 days ago
Or how much of space would be full?
If they enjoy it so much, why not do it to one another?
Is there a biological advantage?
Biologically what is the advantage of 1 mouth, nose or heart, but 2 ears, eyes or kidneys?