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 5 Most Mysterious Signals from Space Mission to Mars: Future Mega Projects Life on Enceladus Hopes warm for alien life: Nasa probe finds hot springs on Saturn’s moon An Astronaut’s View of Earth with Col. Chris Hadfield What Evidence Do We Have for Life on Mars?