Have you ever thought of all the planets. Well if your guss was under 100 you're wrong because scientist have discovered over 250 planets. Also in 2008 scientist found another solar system much like ours but smaller, but sadly they have not found a planet that creatures can live on like us. That's probllay because they have only found 2 planets in that new solar system and maybe one day we might find another planet that has creatures much like ourselfs. But that climate will probally have to have water, rocks, grass, trees and sun almost like earth.