Earth-Sized Planet in the Kuiper Belt
by Brian Wang from NextBigFuture.com on (#6EF6W)
Japanese researchers have used computer simulation and the orbits of several large objects past Neptune to calculate that there is Kuiper Belt planet (KBP) 1.5-3 times as massive as Earth, located at ten to twenty times further than Neptune (250-500 au). A trans-Neptunian object (TNO) is any minor planet in the Solar System that orbits ...