If all goes well, and exploration missions to Europa and other icy moons are allowed to go forward, the benefits could be immeasurable. In addition to the possibility of finding life beyond Earth, we will come to learn a great deal about our solar system , and no doubt learn something more about humanity's place in the cosmos. Explore further: NASA receives science report on Europa lander concept
While not directly criticizing Leibniz, Spinoza holds a drastically different view on creation and the universe. Spinoza believes “that everything that God thinks or conceives must also exist”,  and he combines God’s will and God’s understanding where Leibniz separates them. In other words, God cannot imagine an infinite number of worlds and “as a separate act of will” choose one of those to create.  How does Spinoza explain creation then? To put it simply, everything in the universe “is a direct result of God’s nature”.  The moment God thinks of something, it exists. As there are not an infinite amount of universes (according to Spinoza and Leibniz) God must have only conceived of one universe. This, however, still runs into the problem of the existence of evil. How can God, in his perfection, create a world capable of evil if the world in an extension of his mind? In any case, Spinoza still tries to justify a non-infinite basis for the universe, where reality is everything God has ever thought of.