Prsent cause of tilt of planet seems not me satisfactory! Hence, tried to postulate or perceive the satisfactory cause of it in this article.

All planets of the Sun, original terrestrial planets and the Dwarf Planets, all have axial tilt with respect to their common orbital plane. Each planet have different tilt than other. The cause is indicated as, collisions of planets with other terrestrial bodies is space. When the planets have assumed their axial planes perpendicular to their common 'orbital plane'; after that, if their were happened collision of a planet with extra terrestrial or terrestrial object, the respective planet's axis would have remained continuously vobling around its mean position. But, the axes of all planets are fixed with different tilts to their common orbital plane. Therefore, the author applies his thinking for a month or so. And revealed the concept discussed in this article. Introduction: Gravity plays the most important and vital role in the cosmos, to arrange the positions of objects in the cosmos, so as to maintain the equilibrium in the cosmos/universe. On this basis, the cause of Solar Planet's tilt is revealed as below.