History 1978 Dr. Robert S. Harrington finds Intruder Planet It is a several decades worth of trending the planet nibiru. In a discussion between Dr. Robert S. Harrington, Supervisor Astronomer from the US Naval Observatory from Washington , DC USA and Zecharia Sitchin an author, they mention Nibiru being seen as far back as August 14, 1978. They referred to the celestial body as an intruder. The intruder was discovered six weeks after Pluto was seen to have satellites planet in the regions of the solar system. The intruder passed very close to Neptune with a mass three times the earth's size. Dr. Robert S. Harrington mentions that after 1978 it was a difficult search of tracking this planet. The searched area was narrowed down to Suntarus which is south of the constellation Libra. Watch the video discussion below Published on Sep 6, 2015 Inspired by the late Dr. Robert S Harrington, Zecharia Sitchin & Lloyd Pye RIP+ "Top 10 Planet X 7x Nibiru Researche