In general, natural objects themselves, in their training, usually from clouds and subsequent agglomeration impacts, such as the angular momentum is conserved, the body naturally turn formed. In the System Sola r revolve all bodies, from the Sun to the core of any comet, asteroid or dwarf planet, and all the planets . Also natural satellites.
For artificial bodies, things can change, because they have “attitude” that is, its position and its movement can be varied by thrusters or gyros. For example, while looking at an object, the Hubble remains pointing, so it suspends its orientation with respect to Earth.