english: Astronomers now believe that every star in the galaxy has a planet, and they speculate that up to one fifth of them have an Earth-like planet that might be able to harbor life, but we haven't seen any of them.
non_english: Astronómovia si myslia, že každá hviezda v galaxii má planéty. Asi pätina z nich by mohla mať  planéty podobné Zemi, na ktorých by mohol byť život, ale zatiaľ sme žiadnu nevideli.