Black Holes and the origin of Earth and Moon

8 Jun 2010 June 7th ... a paper in the June issue of the Astronomical Journal was written on completion of a census of visible quasars that found 105,783 of them - in a quarter of the sky. What quasars are is not known - only that they are very luminous. One theory is that the light energy is being emitted by material fallin into black holes. ... it is now claimed the earth and moon were created as a result of a giant collision between two planets. In fact, it is also being claimed that the planets themselves acrete mass and size by collisions, beginning with small planets, of moon size, and getting bigger and bigger with multiple collisions taking place.