Stability of the Solar System that keeps the far side of the Moon away from the Earth. Mercury is in a 3:2 spin–orbit resonance. The planets' orbits are chaotic over longer timescales, such that the whole Solar System possesses a Lyapunov time in the range of 2–230 million years. In all cases this means that the position of a planet along its orbit ultimately becomes impossible to predict with any certainty (so, for example, the timing of winter and summer become uncertain), but in some cases the orbits themselves may change dramatically. Such chaos manifests most strongly as changes in eccentricity, with some planets' orbits
Terra Nostra (novel) failure, it is a magnificent failure. Its conception is truly grand, its perceptions often unique, its energy compelling and the inventiveness and audacity of some of its narrative maneuvers absolutely breathtaking." The novel won the Xavier Villaurrutia Award in 1976. In 1977, it was awarded the Venezuelan Rómulo Gallegos Prize by a jury which included Gabriel García Márquez. Terra Nostra (novel) Terra Nostra is a 1975 novel by the Mexican writer Carlos Fuentes. The narrative covers 20 centuries of European and American culture, and prominently features the construction of El Escorial by Philip II. The title is Latin for "Our