NASA has found a planetary system with 7 Earth sized planets NASA has found a planetary system with 7 Earth sized planets, all of which could have liquid water. Facebook Prev Article Next Article Space Checkout these cool gadgets... Related Posts Did Life on Earth Spread to Space? This Is How The Universe Began How the First Photo of Planet Earth Changed our Perspectives SpaceX Lands Rocket on Drone Ship How Many Stars Are There? Did India capture volcanic activity or a nuclear explosion on Mars?