Theia Returns. The physical theory for making the moon & it's geochemical prediction not matching observations problem can be understood when one realizes that impactor Theia remained intact. It continues to exist & it still orbits down through between the Moon and the Earth in our time. It was a giant hit & run impact event. Planet Nine does not orbit around our star as predicted instead the Object, Theia dives down through the solar system causing the gravitational effects that have been detected & attributed to Planet Nine. In approx 1972 while looking at the Moon using a small telescope I suddenly saw the speeding crossing Object, a big forward rolling place that crosses down in front of the Moon, once again in front of the Moon, "obscuring the Moon's disc," my Mississauga Sighting. A complete lucky fluke to be sure but I did see the big ancient place come rolling down. I saw the ancient Standing Stone Craters & I saw the big main shadow. Also I did see the sight of what the first instant in the distance of the Moon's suddenly changed light looks like & I did see the first part of the incredible visual spectacle that the big rolling place generates with the Moon's suddenly fantastically changed suddenly Lasting Light! When the Object Theia crosses between the Earth & Moon towering crater rim pieces cast shadows into the Moon's Changed Light creating the most fantastic sights. Even if you decide that you are not going to read anything else if you read ReturnViewersGuide #1 you will know the basic idea of what actually happens when the Theia, Planet Nine returns & crosses down in front of the Moon. Find in point form ReturnViewersGuide #1, approx 20% of the way down my page; Return Viewer's Guide For Use With A Small Backyard Telescope. ( rvgcontactme at cogeco.ca I never check messages sent within BTR) www.returnviewersguide.ca