You can explore space indefinitely, because there is no end and edge to the Universe, and at least no one has seen it yet. Methods and methods of research may change. If one does not bring results, then you need to try something else. In Planet Explorer Division, you will focus on mathematical research methods and use one of the actions - division. Reaching the next planet, you must carefully examine the four examples per division, solve them and click on the one whose result differs from the other three. If you did everything right, the rocket will reach the core of the planet, and you will move to the next one in the Planet Explorer Division.