Home JjqYCd7GLbTR8frNro3e6o-1200-80 JjqYCd7GLbTR8frNro3e6o-1200-80 by Magic of science 5 months ago5 months ago The unusual orbits of trans-Neptunian objects in and around the Kuiper Belt suggest something massive is hidden in the outer solar system. (Image credit: Getty Images)