Did you Know? The known cosmos contains an infinite number of stars.
We don't even know how many stars there are in the cosmos. We now use our best estimate of the number of stars in our own galaxy, the Milky Way. Then we increase that figure by our best estimation for the number of galaxies in the cosmos. After all of that calculation, NASA can confidently state that there are zillions upon zillions of uncountable stars. A billion is an endless number.