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 World’s Largest Telescope Operational After 30 Years, $1B Weird activity in space could be aliens Watch This Week’s Total Solar Eclipse Live Messenger Spacecraft Detects Ancient Magnetic Field On Mercury Asteroid Mining Mission Revealed by Planetary Resources, Inc. The Milky Way as You’ve Never Seen It Before