In a way , they don't actually leave, but some transform into base elements , or gasses, when their fuel burns away, and they explode or just burn out.
Stars are scattered all across our universe but guess what? there are no stars in our solar system besides the sun!
The Universe.
A galaxy contains billions of stars. A universe contains billions of galaxies.
All stars and galaxies are in the universe.
The Universe.
Stars do not belong to a planet. They belong to the universe.
We haven't observed all of the stars in the Universe, so we don't know what is the largest yet.
the universe is constantly expanding, new stars and galaxies are coming into existence, and old stars are dying.
In the VISIBLE UNIVERSE, there are somewhere in the order of 1011 galaxies; each galaxy on average has 1011 stars, for a total of (very roughly) 1022 stars.
Every point in the universe is lighted by stars.
my dick lol.inside the universe is the planets and stars and galaxies i think
approximately 200 billion trillion stars in the universe.