Astronomers estimate there are more planets in our galaxy than there are stars. Just how many is that?
Exoplanet Radio Archive
Oct 10th: Rogue Planets: Not All Exoplanets Orbit Stars?
Do you know that we have interesting class of exoplanets? This type of planets do not have a home sun. These rogue worlds travel the distance between the stars, they live in the cold, dark interstellar regions of the galaxy. More with @DeepAstronomy