Scientists a the University of Arizona have now confirmed an "unseen planetary-mass object" may be orbiting the sun in the solar system beyond Pluto. Lunar and Planetary Laboratory researchers now believe that the planetary mass object is roughly between the size of Mars and Earth. The worrying discovery was possible due to its perceived ability to control the orbital planes of Space rocks known as Kuiper Belt objects according to the authors Kat Volk and Renu Malhotra. "The most likely explanation for our results is that there is some unseen mass," lead author of the study said. "According to our calculations, something as massive as Mars would be needed to cause the warp that we measured." Mive.com reports: The U.S. space agency says that these 10 new candidates are in the correct range of their stars where water could form on the surface of the more rocky planets. In its four years in service, the Kepler space telescope has identified 4,034 new planet candidates with more than half