A conservation estimate of the number of stars in the universe is 6*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10. The average human can see about 3,000 stars at night with his naked eye. About how many times more stars are there in the universe,compared to the stars a human can see?
