When used this way in the present tense, the hay form of haber is used. 1  Hay que saltar. 2  Hay que conocerlo para comprenderlo. 3  HabrÃ¡ que salir a las dos.
So, even though we cannot actually count the number of stars in the galaxy, we can estimate the number of stars in the galaxy as roughly 100 billion (100,000,000,000). It turns out that there are many more stars with mass less than the mass of the Sun than with mass more than the mass of the Sun. So, it all works out right.
Our particular galaxy is known as the Milky Way. Scientists estimate that there are 200 billion to 400 billion â yes, that's billion with a âb â stars in the Milky Way galaxy. The Sun is just one of those 200 billion to 400 billion stars. If that blows your mind, just wait! Our Milky Way galaxy is just one of the many galaxies in our universe.