Did you know: Based on current estimates, there are between 200 - 400 billion stars in our galaxy, The Milky Way.
Did you know: The newest estimates gained by the Hubble space telescope places an estimate of 100-500 billion Galaxies (in the visible universe) containing on average 300 billion stars for each galaxy.
So taking a conservative number of 100 billion stars per galaxy gives an approximate total of 10,000,000,000,000,000,000,000 stars. (Which is 10 sextillion)
Now, Did you know: That on average, the stars we observe and look for planets nearest to us have an average of 5 planets per solar system. In our solar system there are 166 and counting moons for the 8 planets we have, making about an average 20 moons per one planet.
If there are on average 5 planets per star in the solar system this means 50,000,000,000,000,000,000,000 (50 sextillion) planets with some 200,000,000,000,000,000,000,000 moons.
^ Just my favorite thing about my existence is the fact that there are so many god damn possibilities for terrestrial planets, and moons.