Galaxies, 100 billion of them estimated in the universe. 100 billion. How many can we see? Five. Five out of the 100 billion galaxies, with the naked eye, and one of them is quite difficult to see unless you've got very good eyesight.
Las galaxias, 100 mil millones se estima hay en el Universo. 100 mil millones. ¿Cuántas podemos ver? Cinco. Cinco, de las 100 mil millones de galaxias, a simple vista.