Did We Find Another Planet In Our Solar System? It’s long been theorized that there is a planet in our solar system that is beyond Neptune and Pluto. Some call this planet Planet X or Nibiru. But now there may be some hard science behind it. Facebook Prev Article Next Article Space Checkout these cool gadgets... Related Posts The Universe Is Really, Really BIG Secret Satellite To “Speak With Unknown Group” Virgin Galactic’s Second Rocket Powered Test Flight Astronomers Discover First Interstellar Object Did Earth Have Two Moons? How Do You Get To Mars In Half The Time?